AnatomyDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsHealth Care
WarfarinAnticoagulantsVitamin K Epoxide ReductasesProthrombin TimeHemorrhageThromboembolismAtrial FibrillationMixed Function Oxygenasesbeta-AlanineVitamin KAryl Hydrocarbon HydroxylasesRodenticidesPharmacogeneticsStrokeVitamin K 1AspirinDrug MonitoringDrug InteractionsDrug Dosage Calculations4-HydroxycoumarinsIntracranial HemorrhagesBenzimidazolesBlood CoagulationEmbolismHerb-Drug InteractionsAdministration, OralVenous ThrombosisCarbon-Carbon LigasesRodent ControlAcenocoumarolPlatelet Aggregation InhibitorsThrombosisThrombophlebitisVitamin K DeficiencyDose-Response Relationship, DrugPhenylbutazoneTreatment OutcomePyridonesVenous ThromboembolismHeparin, Low-Molecular-WeightHeart Valve ProsthesisAortic ValveHeart ValvesHeart Valve Prosthesis Implantation
Warfarin
An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.
Anticoagulants
Agents that prevent clotting.
Vitamin K Epoxide Reductases
OXIDOREDUCTASES which mediate vitamin K metabolism by converting inactive vitamin K 2,3-epoxide to active vitamin K.
Prothrombin Time
Clotting time of PLASMA recalcified in the presence of excess TISSUE THROMBOPLASTIN. Factors measured are FIBRINOGEN; PROTHROMBIN; FACTOR V; FACTOR VII; and FACTOR X. It is used for monitoring anticoagulant therapy with COUMARINS.
Hemorrhage
Bleeding or escape of blood from a vessel.
Thromboembolism
Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.
Atrial Fibrillation
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.
Mixed Function Oxygenases
Widely distributed enzymes that carry out oxidation-reduction reactions in which one atom of the oxygen molecule is incorporated into the organic substrate; the other oxygen atom is reduced and combined with hydrogen ions to form water. They are also known as monooxygenases or hydroxylases. These reactions require two substrates as reductants for each of the two oxygen atoms. There are different classes of monooxygenases depending on the type of hydrogen-providing cosubstrate (COENZYMES) required in the mixed-function oxidation.
beta-Alanine
An amino acid formed in vivo by the degradation of dihydrouracil and carnosine. Since neuronal uptake and neuronal receptor sensitivity to beta-alanine have been demonstrated, the compound may be a false transmitter replacing GAMMA-AMINOBUTYRIC ACID. A rare genetic disorder, hyper-beta-alaninemia, has been reported.
Vitamin K
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
Aryl Hydrocarbon Hydroxylases
A large group of cytochrome P-450 (heme-thiolate) monooxygenases that complex with NAD(P)H-FLAVIN OXIDOREDUCTASE in numerous mixed-function oxidations of aromatic compounds. They catalyze hydroxylation of a broad spectrum of substrates and are important in the metabolism of steroids, drugs, and toxins such as PHENOBARBITAL, carcinogens, and insecticides.
Rodenticides
Substances used to destroy or inhibit the action of rats, mice, or other rodents.
Pharmacogenetics
A branch of genetics which deals with the genetic variability in individual responses to drugs and drug metabolism (BIOTRANSFORMATION).
Stroke
A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)
Vitamin K 1
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
Aspirin
The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5)
Drug Monitoring
The process of observing, recording, or detecting the effects of a chemical substance administered to an individual therapeutically or diagnostically.
Drug Interactions
The action of a drug that may affect the activity, metabolism, or toxicity of another drug.
Drug Dosage Calculations
Math calculations done for preparing appropriate doses of medicines, taking into account conversions of WEIGHTS AND MEASURES. Mistakes are one of the sources of MEDICATION ERRORS.
4-Hydroxycoumarins
Substances found in many plants, containing the 4-hydroxycoumarin radical. They interfere with vitamin K and the blood clotting mechanism, are tightly protein-bound, inhibit mitochondrial and microsomal enzymes, and are used as oral anticoagulants.
Intracranial Hemorrhages
Bleeding within the SKULL, including hemorrhages in the brain and the three membranes of MENINGES. The escape of blood often leads to the formation of HEMATOMA in the cranial epidural, subdural, and subarachnoid spaces.
Benzimidazoles
Compounds with a BENZENE fused to IMIDAZOLES.
Blood Coagulation
The process of the interaction of BLOOD COAGULATION FACTORS that results in an insoluble FIBRIN clot.
Embolism
Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.
Herb-Drug Interactions
The effect of herbs, other PLANTS, or PLANT EXTRACTS on the activity, metabolism, or toxicity of drugs.
Administration, Oral
The giving of drugs, chemicals, or other substances by mouth.
Venous Thrombosis
The formation or presence of a blood clot (THROMBUS) within a vein.
Carbon-Carbon Ligases
Enzymes that catalyze the joining of two molecules by the formation of a carbon-carbon bond. These are the carboxylating enzymes and are mostly biotinyl-proteins. EC 6.4.
Rodent Control
The reduction or regulation of the population of noxious, destructive, or dangerous rodents through chemical, biological, or other means.
Acenocoumarol
A coumarin that is used as an anticoagulant. Its actions and uses are similar to those of WARFARIN. (From Martindale, The Extra Pharmacopoeia, 30th ed, p233)
Platelet Aggregation Inhibitors
Drugs or agents which antagonize or impair any mechanism leading to blood platelet aggregation, whether during the phases of activation and shape change or following the dense-granule release reaction and stimulation of the prostaglandin-thromboxane system.
Thrombosis
Formation and development of a thrombus or blood clot in the blood vessel.
Thrombophlebitis
Inflammation of a vein associated with a blood clot (THROMBUS).
Vitamin K Deficiency
A nutritional condition produced by a deficiency of VITAMIN K in the diet, characterized by an increased tendency to hemorrhage (HEMORRHAGIC DISORDERS). Such bleeding episodes may be particularly severe in newborn infants. (From Cecil Textbook of Medicine, 19th ed, p1182)
Dose-Response Relationship, Drug
The relationship between the dose of an administered drug and the response of the organism to the drug.
Phenylbutazone
A butyl-diphenyl-pyrazolidinedione that has anti-inflammatory, antipyretic, and analgesic activities. It has been used in ANKYLOSING SPONDYLITIS; RHEUMATOID ARTHRITIS; and REACTIVE ARTHRITIS.
Treatment Outcome
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Pyridones
Pyridine derivatives with one or more keto groups on the ring.
Venous Thromboembolism
Obstruction of a vein or VEINS (embolism) by a blood clot (THROMBUS) in the blood stream.
Heparin, Low-Molecular-Weight
Heparin fractions with a molecular weight usually between 4000 and 6000 kD. These low-molecular-weight fractions are effective antithrombotic agents. Their administration reduces the risk of hemorrhage, they have a longer half-life, and their platelet interactions are reduced in comparison to unfractionated heparin. They also provide an effective prophylaxis against postoperative major pulmonary embolism.
Heart Valve Prosthesis
A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.
Aortic Valve
The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.
Heart Valves
Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.
Heart Valve Prosthesis Implantation
Surgical insertion of synthetic material to repair injured or diseased heart valves.

Effect of warfarin on the induction and course of experimental endocarditis. (1/1963)

The effect of warfarin treatment on an experimental endocarditis was studied in rabbits. Warfarin had no effect on the induction of a Streptococcus sanguis infection in catheter-induced endocardial vegetations, and the course of this infection was also unaltered. However, warfarin treatment resulted in rapidly progressive bacteremia, probably due to impaired circulation in clearing organs such as the lungs, liver, and spleen. Warfarin also reduced the survival time of the infected rabbits, in which pulmonary edema and extensive lung hemorrhages may have been a contributory factor.  (+info)

Warfarin therapy: evolving strategies in anticoagulation. (2/1963)

Warfarin is the oral anticoagulant most frequently used to control and prevent thromboembolic disorders. Prescribing the dose that both avoids hemorrhagic complications and achieves sufficient suppression of thrombosis requires a thorough understanding of the drug's unique pharmacology. Warfarin has a complex dose-response relationship that makes safe and effective use a challenge. For most indications, the dose is adjusted to maintain the patient's International Normalized Ratio (INR) at 2 to 3. Because of the delay in factor II (prothrombin) suppression, heparin is administered concurrently for four to five days to prevent thrombus propagation. Loading doses of warfarin are not warranted and may result in bleeding complications. Interactions with other drugs must be considered, and therapy in elderly patients requires careful management. Current dosing recommendations are reviewed, and practical guidelines for the optimal use of warfarin are provided.  (+info)

A comparison of three months of anticoagulation with extended anticoagulation for a first episode of idiopathic venous thromboembolism. (3/1963)

BACKGROUND: Patients who have a first episode of venous thromboembolism in the absence of known risk factors for thrombosis (idiopathic thrombosis) are often treated with anticoagulant therapy for three months. Such patients may benefit from longer treatment, however, because they appear to have an increased risk of recurrence after anticoagulant therapy is stopped. METHODS: In this double-blind study, we randomly assigned patients who had completed 3 months of anticoagulant therapy for a first episode of idiopathic venous thromboembolism to continue receiving warfarin, with the dose adjusted to achieve an international normalized ratio of 2.0 to 3.0, or to receive placebo for a further 24 months. Our goal was to determine the effects of extended anticoagulant therapy on rates of recurrent symptomatic venous thromboembolism and bleeding. RESULTS: A prespecified interim analysis of efficacy led to the early termination of the trial after 162 patients had been enrolled and followed for an average of 10 months. Of 83 patients assigned to continue to receive placebo, 17 had a recurrent episode of venous thromboembolism (27.4 percent per patient-year), as compared with 1 of 79 patients assigned to receive warfarin (1.3 percent per patient-year, P<0.001). Warfarin resulted in a 95 percent reduction in the risk of recurrent venous thromboembolism (95 percent confidence interval, 63 to 99 percent). Three patients assigned to the warfarin group had nonfatal major bleeding (two had gastrointestinal bleeding and one genitourinary bleeding), as compared with none of those assigned to the placebo group (3.8 vs. 0 percent per patient-year, P=0.09). CONCLUSIONS: Patients with a first episode of idiopathic venous thromboembolism should be treated with anticoagulant agents for longer than three months.  (+info)

Pregnancy in patients after valve replacement. (4/1963)

This report is based on information obtained from a questionnaire sent to major cardiac centres in the United Kingdom. This produced details of 39 pregnancies in 34 patients after valve replacement. The 39 pregnancies gave rise to 30 healthy babies. The small size of the series probably reflects both the increasing rarity of young women with rheumatic heart disease in this country and the cautious attitude of their cardiologists. This makes it likely that these women represented the best end of the spectrum of cardiac function after valve replacement. Twenty-four pregnancies in 20 women who were not given anticoagulants producted 23 healthy babies and 1 spontaneous abortion. This group comprised 6 patients with free aortic homografts, 1 patient with a fascia lata mitral valve, 1 with a Beall tricuspid prosthesis, 1 with a combined mitral homograft and Starr Edwards aortic prosthesis, and 1 with mitral and aortic frame-mounted fascia lata valves. There were no maternal deaths or thromboembolic complications in this group which included 5 patients who were in atrial fibrillation. Fifteen pregnancies in 14 women who received anticoagulants gave rise to 7 healthy babies. The fetal losses were one stillbirth, one intrauterine death at 34 weeks, and 3 spontaneous abortions; one surviving child has hydrocephalus as a result of blood clot and there were 2 maternal deaths. This group included 13 patients with Starr Edwards valves, 11 mitral and 2 aortic. A patient with a Hammersmith mitral valve was the only one to have been treated with heparin and her valve thrombosed. One patient with a mounted mitral homograft had a cerebral embolus. Nine of these patients were in atrial fibrillation. In 3 additional patients the valve replacement was carried out during pregnancy. Two of the patients survived operation. In one of these who was treated with warfarin the pregnancy well, but there is an increased fetal wastage in patients pregnancy gave rise to a congenitally malformed baby who died in the neonatal period. The baby born to the mother who did not receive anticoagulants has a hare-lip and talipes. Women with artificial valves can tolerate the haemodynamic load of pregnancy well, but there is an increased fetal wastage in patients taking oral anticoagulants. This is probably largely attributable to fetal haemorrhage but there is also a risk of malformation caused by a teratogenic effect of warfarin. Experience gained in non-pregnant patients suggests that withholding anticoagulatns in pregnant patients with prosthetic valves would usually be undersirable but warfarin should be avoided. The advantages of biological valves were apparent in this series.  (+info)

Medical liability risk avoidance: a case for adopting the International Normalized Ratio (INR) system. (5/1963)

Since bleeding is a common adverse effect associated with the oral anticoagulant warfarin, maximizing the therapeutic potential of this drug requires close laboratory monitoring. The International Normalized Ratio (INR) is a system that has been developed to improve and standardize the assessment of the intensity of oral anticoagulation therapy. Clinical information and medicolegal arguments supporting the adoption of this system are reviewed. The potential for improvement in patient outcomes and minimization of medical liability favors the adoption of the INR system.  (+info)

Strategy for balancing anticoagulation and hemostasis in aortocoronary bypass surgery: blood conservation and graft patency. (6/1963)

The minimal effective dose of aprotinin on hemostasis under normothermic perfusion, the influence of anticoagulant therapy on graft patency, and the thromboembolic and hemorrhagic events were investigated after aortocoronary bypass graft operation (CABG). One hundred CABG patients under normothermic perfusion were randomly divided into the following groups: (1) coumadin plus acetylsalicylic acid (ASA) (n=32); no aprotinin used during cardiopulmonary bypass (CPB); (2) minimal-dose, 10(6) KIU during CPB, aprotinin used, followed by ASA and coumadin (n=36); and (3) very low-dose, total of 2x10(6) KIU before CPB and during CPB; aprotinin used; anticoagulation therapy with heparin early after surgery and followed by replacement with ASA and coumadin (n=32). The patency of arterial grafts was 100% in all groups. The patency of vein grafts was 95-98% and there was no difference among the groups. The blood loss was significantly reduced in both aprotinin groups (groups 2 and 3) compared to the coumadin plus ASA group, although no difference existed between the 2 aprotinin groups. Postoperative thrombotic and hemorrhagic events were not observed in any group. From this study, it was concluded that 10(6) KIU aprotinin in pump-prime-only followed by oral ASA and coumadin was the recommendation from the benefit/cost consideration.  (+info)

Dose-dependent fetal complications of warfarin in pregnant women with mechanical heart valves. (7/1963)

OBJECTIVES: The purpose of this study was to assess the incidence of warfarin fetal complications and whether they are dose-dependent. BACKGROUND: Gravid patients with mechanical heart valves require long-term anticoagulant therapy. Controversy exists concerning the appropriate treatment of these patients. METHODS: Forty-three women on warfarin carrying out 58 pregnancies were studied. For each patient with full-term pregnancy a caesarian section was scheduled for the 38th week during brief warfarin discontinuation. Maternal and fetal complications were evaluated. Fetal complications were divided according to the warfarin dosage < or = 5 mg and > 5 mg necessary to keep an international normalized ratio (INR) of 2.5 to 3.5, and analyzed subsequently. RESULTS: A total of 58 pregnancies were observed: 31 healthy babies (30 full term, 1 premature) and 27 fetal complications (22 spontaneous abortions, 2 warfarin embryopathies, 1 stillbirth, 1 ventricular septal defect, 1 growth retardation) were recorded. Two maternal valve thromboses occurred. No fetal or maternal bleeding was observed during caesarian sections or premature vaginal delivery. Patients whose warfarin doses during pregnancy were > 5 mg had 22 fetal complications, whereas those taking a dose < or = 5 mg had only five fetal complications (p = 0.0001). For an increase of the warfarin dose there was a substantially increased probability of fetal complications (p < 0.0001; p < 0.7316). CONCLUSIONS: There is a close dependency between warfarin dosage and fetal complications. Patients on warfarin anticoagulation may be delivered by planned caesarian section at the 38th week while briefly interrupting anticoagulation.  (+info)

Risk assessment and anticoagulation for primary stroke prevention in atrial fibrillation. (8/1963)

BACKGROUND AND PURPOSE: Risk assessment before anticoagulation is important for effective stroke prevention in atrial fibrillation (AF). METHODS: A study was undertaken in patients with AF to investigate the contribution of clinical and echocardiography (ECHO) criteria to treatment decisions on anticoagulation. Patients were stratified by age and stroke risk; contraindications to anticoagulation and warfarin use were assessed. The value of ECHO in treatment decisions, effect of age, and existing anticoagulation practice were evaluated. RESULTS: The mean+/-SD age of 234 patients was 67.1+/-11.8 years, and 122 (52%) were women. Clinical risk factors were present in 74 of 80 patients (92%) aged >75 years compared with 99 of 154 patients (64%) 75 years of age, and was associated with clinical risk factors in all patients. Eligibility for anticoagulation was seen in 72 of 154 (47%) to 105 of 154 (68%) patients aged 75 years, regardless of criteria used (P<0.01). Warfarin was being used in 55 of 105 patients (51%) 75 years (P<0.001). Anticoagulation was being undertaken in 7 of 49 patients (14%) +info)

DailyMed - WARFARIN SODIUM tabletDailyMed - WARFARIN SODIUM tablet
Warfarin Sodium Tablets USP, 1 mg are available as pink, capsule-shaped, biconvex scored tablets, debossed with TV/1 on the scored side and 1712 on the other side containing 1 mg warfarin sodium, USP, packaged in bottles of 100 (NDC 0093-1712-01) and 1000 (NDC 0093-1712-10) tablets. Warfarin Sodium Tablets USP, 2 mg are available as lavender, capsule-shaped, biconvex scored tablets, debossed with TV/2 on the scored side and 1713 on the other side containing 2 mg warfarin sodium, USP, packaged in bottles of 100 (NDC 0093-1713-01) and 1000 (NDC 0093-1713-10) tablets. Warfarin Sodium Tablets USP, 2.5 mg are available as green, capsule-shaped, biconvex scored tablets, debossed with TV/21/2 on the scored side and 1714 on the other side containing 2.5 mg warfarin sodium, USP, packaged in bottles of 100 (NDC 0093-1714-01) and 1000 (NDC 0093-1714-10) tablets. Warfarin Sodium Tablets USP, 3 mg are available as tan, capsule-shaped, biconvex scored tablets, debossed with TV/3 on the scored side and 1715 on ...
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=cf511ee6-379a-4bd3-ab08-33af803d25ef
DSpace at EWHA: Polymorphisms of vitamin K-related genes (EPHX1 and VKORC1L1) and stable warfarin dosesDSpace at EWHA: Polymorphisms of vitamin K-related genes (EPHX1 and VKORC1L1) and stable warfarin doses
The aim of this study was to investigate the possible effects of EPHX1 and VKORC1L1 polymorphisms on variability of responses to warfarin. Sixteen single nucleotide polymorphisms (SNPs) in 201 patients with stable warfarin doses were analyzed including genes of VKORC1, CYP2C9, CYP4F2, GGCX, EPHX1 and VKORC1L1. Univariate analysis was conducted for the association of genotypes with stable warfarin doses. Multiple linear regression analysis was used to investigate factors that independently affected the inter-individual variability of warfarin dose requirements. The rs4072879 of VKORC1L1 (A , G) was significantly associated with stable warfarin doses; wild homozygote carriers (AA) required significantly lower stable warfarin doses than those with the variant G allele (5.02 ± 1.56 vs. 5.96 ± 2.01 mg; p = 0.001). Multivariate analysis showed that EPHX1 rs1877724 and VKORC1L1 rs4072879 accounted for 1.5% and 1.3% of the warfarin dose variability. Adding EPHX1 and VKORC1L1 SNPs to the base model ...
http://dspace.ewha.ac.kr/handle/2015.oak/239679
DailyMed - WARFARIN SODIUM tabletDailyMed - WARFARIN SODIUM tablet
Warfarin sodium tablets, USP are contraindicated in women who are pregnant except in pregnant women with mechanical heart valves, who are at high risk of thromboembolism, and for whom the benefits of warfarin sodium may outweigh the risks [see Warnings and Precautions (5.7)]. Warfarin sodium can cause fetal harm. Exposure to warfarin during the first trimester of pregnancy caused a pattern of congenital malformations in about 5% of exposed offspring. Because these data were not collected in adequate and well-controlled studies, this incidence of major birth defects is not an adequate basis for comparison to the estimated incidences in the control group or the U.S. general population and may not reflect the incidences observed in practice. Consider the benefits and risks of warfarin sodium and possible risks to the fetus when prescribing warfarin sodium to a pregnant woman. Adverse outcomes in pregnancy occur regardless of the health of the mother or the use of medications. The estimated ...
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=ab047628-67d0-4a64-8d77-36b054969b44&audience=consumer
Abstract WP303: Stability of High-Quality Warfarin Anticoagulation in a Community-Based Atrial Fibrillation Cohort: The ATRIA...Abstract WP303: Stability of High-Quality Warfarin Anticoagulation in a Community-Based Atrial Fibrillation Cohort: The ATRIA...
Introduction: Warfarin reduces stroke risk in atrial fibrillation (AF), but increases bleed risk. Frequent testing with dose adjustment is needed to maintain INR levels in the therapeutic range of 2.0-3.0. Novel anticoagulants (NOACs) now challenge warfarin as stroke-preventive therapy for AF. They are available at fixed doses but costlier. Warfarin anticoagulation at a time in therapeutic range (TTR) ≥70% is similarly effective and safe as NOACs. It is unclear whether AF patients with TTR ≥70% will remain stably anticoagulated and avoid the need to switch to a NOAC. We assessed stability of warfarin anticoagulation in AF patients with an initial TTR ≥70% primarily managed by anticoagulation clinics.. Hypothesis: AF patients who achieve TTR ≥70% in the first 6 months of warfarin therapy will maintain high TTR subsequently.. Methods: Within the community-based ATRIA cohort of AF patients, we identified 2521 new warfarin users who continued warfarin therapy over 15 months. We excluded ...
http://stroke.ahajournals.org/content/47/Suppl_1/AWP303
Abstract T P137: Cerebral Ischemic Events In Patients With Therapeutic Warfarin Treatment | StrokeAbstract T P137: Cerebral Ischemic Events In Patients With Therapeutic Warfarin Treatment | Stroke
Background: Patients on long term warfarin treatment can have cerebral ischemic events despite therapeutic levels. We sought to determine unique patient attributes that result in ischemic events on therapeutic warfarin treatment.. Methods: We reviewed the medical records and imaging data of consecutive patients with cerebral ischemic events who were on long term warfarin treatment over a 4 year period. We stratified the patients based on international normalized ratio (2.0-3.0 versus ,2.0) and compared the demographic and clinical characteristics between the two groups of patients.. Results: A total of 163 patients (mean age±SD; 77.3 ± 11.2) on long term warfarin treatment were admitted with cerebral ischemic events (97 ischemic strokes and 40 transient ischemic attacks). The mean age was not different between patients who were sub therapeutic and therapeutic on warfarin (78.2 ±11.6 versus 77.5±10.5, p=0.7). The proportion of patients with hypertension (87.2% versus 84.0%, p=0.6), diabetes ...
http://stroke.ahajournals.org/content/46/Suppl_1/ATP137
Safety of Intramuscular Influenza Immunization Among Patients Receiving Long-term Warfarin Anticoagulation Therapy<...
TY - JOUR. T1 - Safety of Intramuscular Influenza Immunization Among Patients Receiving Long-term Warfarin Anticoagulation Therapy. AU - Raj, G.. AU - Kumar, R.. AU - McKinney, W. P.. PY - 1995/7/24. Y1 - 1995/7/24. N2 - Background: The effect of influenza vaccine on the prothrombin time (PT) among patients taking warfarin is unclear, as previous studies have shown conflicting results and the clinical significance of such a purported effect is uncertain. Moreover, to our knowledge, there are no data confirming the safety of intramuscular injections in patients receiving anticoagulant therapy with regard to possible local hematoma formation. We measured the effect of influenza vaccine on the PT among patients receiving long-term warfarin sodium therapy and evaluated the safety of intramuscular injections among them. Methods: Forty-one adult patients who were receiving anticoagulant therapy were given 0.5 mL of influenza vaccine intramuscularly. Prothrombin time and arm girth were measured at ...
https://utsouthwestern.pure.elsevier.com/en/publications/safety-of-intramuscular-influenza-immunization-among-patients-rec
1996 - Adjusted-dose warfarin for atrial fibrillation reduced stroke risk better than low-dose warfarin plus aspirin ...1996 - Adjusted-dose warfarin for atrial fibrillation reduced stroke risk better than low-dose warfarin plus aspirin ...
Good evidence exists that adjusted-dose warfarin reduces the risk for stroke in patients with nonvalvular atrial fibrillation (1). However, because regular monitoring of the INR is required and because of the risk for hemorrhage, a safer alternative is desirable. Aspirin is safer and more convenient but less effective than warfarin (2, 3). This study was restricted to patients who had at least 1 risk factor for stroke in addition to atrial fibrillation. In these patients, the effects of low-intensity, fixed-dose warfarin plus aspirin were disappointing; the risk for stroke increased, and the risk for major hemorrhage was not reduced. Patients who are at high risk for stroke stand to gain more from treatment than patients at low risk for stroke, and the SPAF III study confirms the benefit of adjusted-dose warfarin for these patients. Increasing evidence supports a target range of 2.0 to 3.0 for the INR. The risk for stroke rises steeply if the INR is , 2, and the risk for hemorrhage rises if it ...
http://acpjc.org/Content/126/1/issue/ACPJC-1997-126-1-001.htm
How much vitamin k to reverse coumadin - eBoulange
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https://eboulange.com/how-much-vitamin-k-to-reverse-coumadin/
NDC 0093-1714 Warfarin Sodium Warfarin SodiumNDC 0093-1714 Warfarin Sodium Warfarin Sodium
Warfarin Sodium with NDC 0093-1714 is a a human prescription drug product labeled by Teva Pharmaceuticals Usa, Inc.. The generic name of Warfarin Sodium is warfarin sodium.
https://ndclist.com/ndc/0093-1714
EPIDEMIK COALITION » Blog Archive » Coumadin retail priceEPIDEMIK COALITION » Blog Archive » Coumadin retail price
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http://epidemikcoalition.com/2018/05/12/coumadin-retail-price/
WARFARIN SODIUM (warfarin tablet) | Top Interaction Warnings | Healthgrades.comWARFARIN SODIUM (warfarin tablet) | Top Interaction Warnings | Healthgrades.com
Interactions for WARFARIN SODIUM (warfarin tablet) explain how Warfarin Sodium works in concert with other medications and substances. This section outlines the advice given to doctors and pharmacists when prescribing and dispensing Warfarin Sodium
https://www.healthgrades.com/drugs/warfarin-sodium/interactions
Warfarin induced coagulopathy in children: assessment of a conservative approach
Background Increasing numbers of children are being administered warfarin therapy as thromboprophylaxis. Warfarin has a narrow therapeutic window with a target international normalised ratio (INR) of 2-3.5, called the therapeutic range. The length of time a patients INR remains within the therapeutic range is calculated as time in the therapeutic rangeâ‡(tm). Risk for haemorrhage in children receiving warfarin is 0.5%/patient-year and minor bleeding 2.3%/patient-year, which increases exponentially for INRs >5.0. Practice among non-bleeding adults with INRs ≥5 and ≤9 is to withhold warfarin and allow the INR to return to the therapeutic range. Faster warfarin clearance is correlated with younger age. Methods and results The study objective was to determine the safety and effectiveness of a conservative approach for management of INRs >5 in children receiving warfarin. Children receiving warfarin with INRs ≥5 had warfarin withheld followed by a next day INR without vitamin ...
http://connection.ebscohost.com/c/articles/60964064/warfarin-induced-coagulopathy-children-assessment-conservative-approach
Correlation between rs2108622 locus of CYP4F2 gene single nucleotide polymorphism and warfarin dosage in Iranian cardiovascular...Correlation between rs2108622 locus of CYP4F2 gene single nucleotide polymorphism and warfarin dosage in Iranian cardiovascular...
Background: Many cardiovascular diseases may require lifelong anticoagulation therapy. Warfarin is the most prescribed medication in this regard, however, it has serious side effects. Recently the new issue regarding to warfarin dosing is considered in which some single nucleotide polymorphisms (SNPs) affecting cytochrome P450 system can impact on warfarin metabolism and dosing. Methods: 230 cardiovascular patients have participated in the study. The INR levels was 1.5 - 3.5 with a mean range of 2.8. The subjects were divided into two case and control groups. The rs2108622 SNP of the CYP4F2 gene and its effect on warfarin dosing in these patients was accessed. Results: The results of our study showed a correlation between age and warfarin dosage. The overall frequency of the CC and TT allele of rs2108622 was 53.1% and 18.6%. Daily average dose of warfarin in CC, CT and TT variants was 3.5 ± 1.6, 4.5 ± 2.1 and 5.3 ± 2.1 respectively. The daily warfarin dose in patients with CC allele was
http://ijpr.sbmu.ac.ir/article_2074.html
Location and characterization of the warfarin binding site of human serum albumin A comparative study of two large fragmentsLocation and characterization of the warfarin binding site of human serum albumin A comparative study of two large fragments
The warfarin binding behaviour of a large tryptic fragment (residues 198-585 which comprise domains two and three) and of a large peptic fragment (residues 1-387 which comprise domains one and two) of human serum albumin has been studied by circular dichroism and equilibrium dialysis in order to locate and characterize ... read more the primary warfarin binding site. The induced ellipticity of the warfarin-peptic fragment complex turned out to be pH dependent. This pH dependence occurs in the region of the neutral-to-base transition of the albumin molecule. The induced ellipticity of the warfarin-tryptic fragment complex is pH independent. Difference CD-spectra showed that the peptic fragment and albumin have similar warfarin binding properties whereas the tryptic fragment has deviant warfarin binding properties. The equilibrium dialysis experiments showed that the affinity of warfarin to the peptic fragment and to albumin is practically the same whereas the affinity of warfarin to the tryptic ...
https://dspace.library.uu.nl/handle/1874/24495
A multicenter, prospective study evaluating the impact of the clinical pharmacist-physician counselling on warfarin therapy...
Health care professionals (HCP) are known key elements of effective patients counselling and education. For patients taking warfarin, education about the dose, side effects, and toxicity is clearly identified as a cornerstone of achieving improved health and quality of life. The study objective was to evaluate the patients knowledge about warfarin and assess the impact of the health care professionals counselling in enhancing patients knowledge in achieving warfarin therapeutic outcomes. A six-month prospective multicentered study was conducted in three hospitals, enrolling 300 patients admitted to the cardiac care unit and internal medicine departments. Patients warfarin knowledge and INR levels were assessed before and after the clinical pharmacist counselling. The main therapeutic outcome was the impact of the clinical pharmacist-physician counselling on improving patients education and achieving therapeutic INR level. A higher mean knowledge about warfarin score was found after counselling as
http://bmchealthservres.biomedcentral.com.preview-live.oscarjournals.springer.com/articles/10.1186/s12913-018-2874-7
Use of Phytonadione to Reduce International Normalized Ratio (INR) Variability in Patients on Long-term Warfarin Therapy - Full...Use of Phytonadione to Reduce International Normalized Ratio (INR) Variability in Patients on Long-term Warfarin Therapy - Full...
Background: Warfarin is used as an anti-coagulant in patients at risk of developing thrombosis. It has a narrow therapeutic index necessitating close monitoring of International Normalized Ratio (INR). According to a meta-analysis, patients were in therapeutic range only 63.6% of the time. This increases the risk of bleeding or thrombosis. Various retrospective and prospective studies have looked at supplementation with phytonadione in these patients to reduce the variability of INR showing an improvement in variability. Most of these studies have only been done in a small number of patients already on warfarin therapy. This study will focus on patients newly starting warfarin therapy.. Methods: This study is a prospective, randomized, controlled trial performed at James A. Haley Veterans Hospital (JAHVA). Patients who meet criteria and sign informed consent will receive either phytonadione with warfarin or warfarin alone. Based on a power calculation for 80%, a total of 370 patients will be ...
https://clinicaltrials.gov/ct2/show/NCT01474460?recr=Open&intr=%22Warfarin%22&rank=11
Use of Phytonadione to Reduce International Normalized Ratio (INR) Variability in Patients on Long-term Warfarin Therapy - Full...Use of Phytonadione to Reduce International Normalized Ratio (INR) Variability in Patients on Long-term Warfarin Therapy - Full...
Background: Warfarin is used as an anti-coagulant in patients at risk of developing thrombosis. It has a narrow therapeutic index necessitating close monitoring of International Normalized Ratio (INR). According to a meta-analysis, patients were in therapeutic range only 63.6% of the time. This increases the risk of bleeding or thrombosis. Various retrospective and prospective studies have looked at supplementation with phytonadione in these patients to reduce the variability of INR showing an improvement in variability. Most of these studies have only been done in a small number of patients already on warfarin therapy. This study will focus on patients newly starting warfarin therapy.. Methods: This study is a prospective, randomized, controlled trial performed at James A. Haley Veterans Hospital (JAHVA). Patients who meet criteria and sign informed consent will receive either phytonadione with warfarin or warfarin alone. Based on a power calculation for 80%, a total of 370 patients will be ...
https://clinicaltrials.gov/ct2/show/NCT01474460?term=hypercoagulation+OR+thrombophilia+OR+blood+clotting&recr=Open&fund=01&rank=18
Warfarin Pharmacogenetics | CirculationWarfarin Pharmacogenetics | Circulation
Warfarin has been in clinical use for nearly 60 years, and in 2010 there were ,25 million prescriptions for warfarin in the United States. Although warfarin is highly efficacious, it has a narrow therapeutic window to achieve desired anticoagulation without excess risk of bleeding. Anticoagulation status is monitored with the International Normalized Ratio (INR), where the most common target INR is 2 to 3. Not only does warfarin exhibit a narrow therapeutic index, but there can be 10- to 20-fold differences in the warfarin dose required to achieve target INR. Thus, the early period after warfarin therapy initiation requires frequent INR monitoring to determine the proper dose for the patient, it is often associated with multiple dose adjustments, and many patients experience prolonged periods of over- or underanticoagulation while the appropriate dose is identified. These challenges lead to warfarin being a leading cause of emergency department visits and hospitalizations for an adverse drug ...
http://circ.ahajournals.org/content/125/16/1964
The Association Between Prior Use of Aspirin and/or Warfarin and the I by Hani Amad, Andrew T. Yan et al.The Association Between Prior Use of Aspirin and/or Warfarin and the I by Hani Amad, Andrew T. Yan et al.
BACKGROUND: The role of acetylsalicylic acid (ASA [aspirin]) and warfarin in secondary prevention after acute coronary syndromes (ACS) is well established. However, there are sparse data comparing the presentation and outcomes of patients who present with ACS while on ASA and/or warfarin therapy and those on neither. METHODS: Using data from the Canadian Global Registry of Acute Coronary Events (GRACE), we stratified 14,090 ACS patients into 4 groups according to prior use of antithrombotic therapies and compared in-hospital management and outcomes. RESULTS: Among 14,090 ACS patients, 7411 (52.6%) were not on prior ASA or warfarin therapy, 5724 (40.6%) were on ASA only, 593 (4.2%) were on warfarin only, and 362 (2.6%) were on both ASA and warfarin. ACS patients taking ASA and/or warfarin were older with more comorbidities than the patients on neither drug. Patients receiving prior warfarin only or ASA and warfarin were less likely to receive guideline-recommended therapies. Patients who were taking
https://escholarship.umassmed.edu/cor_grace/94/
Enhanced Warfarin Response and AntibioticsEnhanced Warfarin Response and Antibiotics
Warfarin has been reported to interact with more than 100 drugs, including many antibiotics. Warfarin is a racemic mixture of S- and R-warfarin enantiomers. S-warfarin is considered to have several times more anticoagulant activity than R-warfarin. S-warfarin is primarily metabolized by CYP2C9, whereas Rwarfarin is metabolized by CYP1A2, CYP2C19, and CYP3A4. Thus, one would expect that drugs inhibiting CYP2C9, and therefore S-warfarin metabolism, would increase the concentration of warfarin and enhance its anticoagulant effect (Table). Other antibiotics have been reported to increase warfarin response. Some?such as moxalactam, cefoperazone, cefamandole, cefotetan, and cefmetazole?appear to inhibit the formation of clotting factors and indirectly increase the effect of warfarin. As with the antibiotics that are inhibitors of CYP2C9, there may be a reasonable mechanism for these purported interactions. For the majority of antibiotics associated with warfarin interactions, however, there is no ...
http://www.pharmacytimes.com/publications/issue/2004/2004-06/2004-06-8003
Adjusted-dose warfarin versus low-intensity, fixed-dose warfarin plus aspirin for high-risk patients with atrial fibrillation:...Adjusted-dose warfarin versus low-intensity, fixed-dose warfarin plus aspirin for high-risk patients with atrial fibrillation:...
TY - JOUR. T1 - Adjusted-dose warfarin versus low-intensity, fixed-dose warfarin plus aspirin for high-risk patients with atrial fibrillation. T2 - Stroke prevention in Atrial Fibrillation III Randomised Clinical Trial. AU - Blackshear, J. L.. AU - Baker, V. S.. AU - Rubino, F.. AU - Safford, R.. AU - Lane, G.. AU - Flipse, T.. AU - Malouf, J.. AU - Thompson, R.. AU - Webel, R.. AU - Flaker, G. C.. AU - Young, L.. AU - Hess, D.. AU - Friedman, G.. AU - Burger, R.. AU - McAnulty, J. H.. AU - Coull, B. M.. AU - Marchant, C.. AU - Timberg, J.. AU - Janzik, C.. AU - Giraud, G.. AU - Halperin, B.. AU - Kron, J.. AU - Wynn, M.. AU - Raitt, M.. AU - Anderson, D. C.. AU - Asinger, R. W.. AU - Newburg, S. M.. AU - Fifield, J.. AU - Bundlie, S. R.. AU - Koller, R. L.. AU - Tarrel, R. D.. AU - Dick, C.. AU - Haugland, J. M.. AU - Jorgensen, C. R.. AU - Leonard, A. D.. AU - Kanter, M. C.. AU - Solomon, D. H.. AU - Zabalgoitia, M.. AU - Mego, D.. AU - Carter, J. E.. AU - Boyd, S. Y.. AU - Boop, B. S.. AU - ...
https://ohsu.pure.elsevier.com/en/publications/adjusted-dose-warfarin-versus-low-intensity-fixed-dose-warfarin-p-2
Warfarin inr and pt levels
How much warfarin the person is prescribed depends on the prothrombin time (or INR). The therapeutic value of PT is about 1.5 to 2.5 times the. Prothrombin time (PT) is a blood test that measures how long it takes blood to clot. A prothrombin time In some labs, only the INR is reported and the PT is not reported.. Other blood Blood-thinning medicine, such as warfarin. Low levels of. PT/PTT are blood tests and INR is a ratio calculated from the PT. At least a dozen PT is used to monitor treatment with warfarin (Coumadin). Once warfarin is Which value, PT or PTT, does heparin influence? Which one. Patient education: Warfarin (Coumadin) (Beyond the Basics) Dosing - The dose of warfarin is adjusted to get the PT/INR blood test into the.. Learn what a normal INR means and how it will impact your Warfarin Therapy using Normal INR Levels are 2.5 to 3.5 for people with the following conditions1 2 A prothrombin complex concentrate is a combination of blood clotting factors. The prothrombin time is a ...
http://gc-ursmu.ru/warfarin-inr-and-pt-levels.html
Patients satisfaction with warfarin and willingness to switch to dabigatran: A patient survey<...
TY - JOUR. T1 - Patients satisfaction with warfarin and willingness to switch to dabigatran. T2 - A patient survey. AU - Elewa, Hazem F.. AU - DeRemer, Christina E.. AU - Keller, Kimble. AU - Gujral, Jaspal. AU - Joshua, Thomas V.. PY - 2014/7. Y1 - 2014/7. N2 - Warfarin is an anticoagulant medication that is challenging to manage. Dabigatran has been approved by the FDA for stroke and systemic embolism prevention in non-valvular atrial fibrillation as an alternative to warfarin. Dabigatran does not require routine monitoring, has an established dose, and lacks many of the drug, herbal, and food interactions that afflict warfarin. To evaluate patients satisfaction with their current warfarin treatment and their opinion on switching to a newly marketed medication (dabigatran) through a brief survey. Two separate surveys were administered to (1) evaluate the patients opinion of their warfarin therapy and (2) evaluate their thoughts on switching to a newer anticoagulant. Responses were recorded ...
https://augusta.pure.elsevier.com/en/publications/patients-satisfaction-with-warfarin-and-willingness-to-switch-to-
Ximelagatran was non-inferior to warfarin in preventing stroke and systemic embolism in atrial fibrillation | BMJ Evidence...Ximelagatran was non-inferior to warfarin in preventing stroke and systemic embolism in atrial fibrillation | BMJ Evidence...
SPORTIF III compared ximelagatran, 36 mg twice daily, with therapeutic warfarin in patients with AF at moderate to high risk of thromboembolic outcomes. INR control in the warfarin group was similar to that in the community.1 The results, along with the recently reported SPORTIF V,2 showed that ximelagatran is at least as efficacious as warfarin and at least as safe for bleeding complications. See EBM notebook (http://ebm.bmjjournals.com/cgi/content/9/2/38). From a practical standpoint, ximelagatran is an easier drug to use than warfarin because it can be administered in a fixed dose regimen, without the need for laboratory monitoring of its anticoagulant effect to make dose adjustments, and does not appear to have drug and food related interactions that occur with warfarin. These advantages have the potential to greatly simplify the anticoagulant management of patients with AF. However, ximelagatran is potentially hepatotoxic (see table on web site).3,4,5 Most studies of long term ximelagatran ...
https://ebm.bmj.com/content/9/2/43
A surgeons guide to anticoagulant and antiplatelet medications part one: warfarin and new direct oral anticoagulant...A surgeons guide to anticoagulant and antiplatelet medications part one: warfarin and new direct oral anticoagulant...
Warfarin, a vitamin K epoxide reductase inhibitor, was first approved as an oral anticoagulant medication in 1954 and was the only option for outpatient anticoagulation for decades. Clinical trials in the 1980s and 1990s demonstrated that warfarin was highly effective at preventing strokes related to AF.7-9 The combination of these trials demonstrated an impressive 62% reduction in the risk of stroke. Despite the development and proliferation of novel oral anticoagulant alternatives, warfarin use remains prevalent and complicates the management of hemorrhagic and non-hemorrhagic surgical emergencies. As recently as 2011, warfarin was one of the top 25 most commonly prescribed medications in the USA.10 Warfarin is Food and Drug Administration (FDA) approved for the management of relatively common medical problems: the prophylaxis and treatment of venous thromboembolism and the reduction of embolic risk associated with non-valvular atrial dysrhythmia, mechanical heart valves, and the sequelae of ...
http://tsaco.bmj.com/content/1/1/e000020
Perceived or actual barriers to warfarin use in atrial fibrillation based on electronic medical records<...
TY - JOUR. T1 - Perceived or actual barriers to warfarin use in atrial fibrillation based on electronic medical records. AU - Rosenman, Marc B.. AU - Simon, Teresa A.. AU - Teal, Evgenia. AU - McGuire, Patricia. AU - Nisi, Daniel. AU - Jackson, Joseph D.. PY - 2012/9/1. Y1 - 2012/9/1. N2 - Compared with usual practice, clinical trials often exclude patients with relative contraindications. A study of real-world warfarin use could help inform trials of new medications that could potentially replace warfarin. The objective of this study was to describe potential barriers to warfarin use among patients with atrial fibrillation. This was a retrospective study of electronic medical records (1998-2007) from an inner-city public hospital and affiliated primary care clinics and included adults aged 18 years or more with atrial fibrillation. Exclusions included mitral or aortic valve replacement, hyperthyroidism, or no clinical encounter within 1 year after first diagnosis. Warfarin exposure was defined ...
https://indiana.pure.elsevier.com/en/publications/perceived-or-actual-barriers-to-warfarin-use-in-atrial-fibrillati
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Study: Risk of post-op bleeding minimal in warfarin usersStudy: Risk of post-op bleeding minimal in warfarin users
Asking patients to discontinue these blood-thinning medications before any dental work is not a prudent thing to do, he stated. The implications of discontinuing these prescriptions are greater than any postoperative bleeding complications that we get.. While patients who are only on warfarin are at minimal risk, the researchers considered other variables in their study and noted an area of greater concern.. What we found was that individuals who were on several blood thinners, not just warfarin, were the ones who were at higher risk, Dr. Napenas said.. International normalized ratio. He and his colleagues used the CoaguChek system (Roche Diagnostics) to ascertain each patients international normalized ratio (INR), a commonly used metric when monitoring oral anticoagulant therapy and for warfarin dosage planning. Typical INR for those not on warfarin is 1; it ranges from 2 to 4 for those on the drug, with some variation based on the patients need for it, according to the study ...
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Anti-warfarin antibody preparation and its characterization for radioimmunoassay | Meta
Anti-warfarin antiserum was prepared in rabbits by immunization with a synthesized warfarin antigen, 4-azo-warfarin human serum albumin, which possesses two enantiomorphic haptenic sites of warfarin on the molecule. The antiserum recognized both R- and S-warfarin to the same degree, 50% cross reactivities of racemic warfarin, respectively. One of the warfarin metabolites, racemic warfarin alcohol, showed 1% cross reactivity, and R- or S-warfarin alcohol have half the reactivity of the racemic alcohol. Rabbit plasma warfarin levels were determined by radioimmunoassay using this antiserum and racemic [14C]warfarin and by fluorometric assay after isolation by thin layer chromatography. After a single administration of warfarin (2 mg kg-1 orally or 500 microgram kg-1 i.v.), the plasma levels determined by both assay methods showed a good correlation (r = 0.97, P less than 0.001, Y = 1.04-0.09). The results show that the radioimmunoassay can determine total plasma warfarin without interference of ...
https://www.meta.org/papers/anti-warfarin-antibody-preparation-and-its/6126538
以Dabigatran治療NVAF患者造成AKI風險低於Warfarin
口服抗凝血藥（Oral anticoagulant drugs，OACs），包含Warfarin這類維生素K拮抗劑，可有效減少心房顫動（Atrial fibrillation，AF）患者的血栓事件及全死因死亡率，但近年來卻發現warfarin治療可能影響腎功能。Dabigatran為新型抗凝血劑，經RE-LY臨床試驗證實，其相較warfarin可延緩腎功能下降，但目前仍不知接受Warfarin及Dabigatran治療之AF患者的急性腎損傷（Acute kidney injury，AKI）風險，因此發表於《Journal of the American College of Cardiology》的最新文章將比較非瓣膜性心房顫動（Nonvalvular atrial fibrillation，NVAF）患者接受Warfarin及Dabigatran治療時的AKI風險差異。試驗中，7702位無慢性腎病（Chronic kidney ...
http://globalmednews.tw/epaper.php?no=544&cn=%E4%B8%AD%E9%A2%A8
Dabigatran compared with warfarin in patients with atrial fibrillation and previous transient ischaemic attack or stroke: a...Dabigatran compared with warfarin in patients with atrial fibrillation and previous transient ischaemic attack or stroke: a...
BACKGROUND: In the Randomised Evaluation of Long-Term Anticoagulation Therapy (RE-LY) trial, dabigatran reduced occurrence of both stroke and haemorrhage compared with warfarin in patients who had atrial fibrillation and were at increased risk of stroke. We aimed to assess the effects of dabigatran compared with warfarin in the subgroup of patients with previous stroke or transient ischaemic attack.. METHODS: In the RE-LY trial, 18 113 patients from 967 centres in 44 countries were randomly assigned to 110 mg or 150 mg dabigatran twice daily or to warfarin dose adjusted to international normalised ratio 2·0 to 3·0. Median follow-up was 2·0 years (IQR 1·14-2·86), and the primary outcome was stroke or systemic embolism. The primary safety outcome was major haemorrhage. Patients and investigators were aware of whether patients received warfarin or dabigatran, but not of dabigatran dose, and event adjudicators were masked to treatment. In a predefined analysis, we investigated the outcomes of ...
https://www.radcliffecardiology.com/dabigatran-compared-warfarin-patients-atrial-fibrillation-and-previous-transient-ischaemic-attack-or
Atrial fibrillation patients who sustained warfarin-associated intracerebral haemorrhage have poor neurological outcomes:...Atrial fibrillation patients who sustained warfarin-associated intracerebral haemorrhage have poor neurological outcomes:...
We searched our electronic database for all patients aged 18 years or above who developed first ICH in the presence of anticoagulation with warfarin for non-valvular AF (ICH-W group) from the three hospitals, and matched them with a comparison group (ICH-C group) without taking warfarin at a 1:1 ratio for age (±1 year), gender, and admission year. The comparison group comprised patients from the medical unit of PMH (principal study centre) who had a first episode of ICH without anticoagulation, regardless of any AF. Patients with isolated subdural, subarachnoid, or intraventricular haemorrhage were excluded. We retrieved and compared the data regarding neurological impairment and investigation findings, estimated the ICH volume on CT through the ABC/2 method, and calculated the ICH score.3 4 Hospital mortality and 6-month modified Rankin Scale score (mRS, 0-6) were selected as primary and secondary outcomes, respectively. We used independent sample t test and Mann-Whitney U test for univariate ...
http://www.hkmj.org/abstracts/v23n2/117.htm
An audit to determine if general practitioners are aware of warfarin treatment when this drug is routinely provided by a...An audit to determine if general practitioners are aware of warfarin treatment when this drug is routinely provided by a...
From a sample of 84 referrals by the hospital to the pharmacy clinic, 51 patients belonged to GP practices using SystmOne. From this latter group, there was only one instance where hospital communications had not been scanned onto the electronic record by a GP practice. Nevertheless, in 25 cases (49%), warfarin had not been entered on the repeat template, possibly because the GP was not being asked to prescribe the drug. This meant that as details of warfarin use were consigned to less frequently accessed sections of the electronic record, the GP might easily overlook that anticoagulation had commenced. Information about the duration of warfarin treatment was invariably absent. There were 18 cases where patients had remained on aspirin unintentionally and two instances where the hospital had not indicated if it should stop. Overall, information about warfarin was missing, not readily accessed or incomplete in 82.4% of cases. As there was no hospital electronic link with non-SystmOne practices, ...
https://eprints.hud.ac.uk/id/eprint/19514/
Ciprofloxacin And Warfarin Drug Interaction - Diclofenac Gel And Warfarin
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Warfarin protocol inpatientWarfarin protocol inpatient
This article identifies approaches for implementing an inpatient approval of all policies, guidelines, and protocols to establish an anticoagulation service the pharmacy department expanded the service beyond warfarin. Provide details of the inpatient processes for each locality; Cambridge or warfarin. Local guidelines or local haematology departments should be consulted. This document is intended as a guideline only and should not replace sound Inpatient warfarin dosing adjustment nomogram (for target INR 2-3) - INITIATION.. Development and implementation of a pharmacist-managed inpatient warfarin protocol. David L. Damaske, PharmD corresponding author 1 and Robert W. Inpatient Initiation (Non-Orthopedic Indications, e.g. atrial fibrillation, mechanical valve, or venous Thereafter use [Warfarin Maintenance Guidelines].. Venous. ...
http://sunlord.ru/warfarin-protocol-inpatient.html
Are major bleeding events from falls more likely in patients on warfarin?Are major bleeding events from falls more likely in patients on warfarin?
There is no evidence of increased risk for major bleeding as a result of falls in hospitalized patients taking warfarin (strength of recommendation [SOR]: B, based on retrospective cohort studies). In the average patient taking warfarin for atrial fibrillation, the risk of intracranial hemorrhage from a fall is much smaller than the benefit gained from reducing risk of stroke (SOR: A, based on decision analysis of systematic reviews with sensitivity analysis ...
https://mospace.umsystem.edu/xmlui/handle/10355/3419
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Learn about the prescription medication Coumadin (Warfarin Sodium), drug uses , dosage, side effects, drug interactions, warnings, reviews and patient labeling. COUMADIN® (warfarin sodium) is a prescription medicine used to treat blood clots and to lower the chance of blood clots forming in your body. Blood clots can Reveals the medication warfarin (Coumadin, Jantoven) a drug used to inhibit the DRUG INTERACTIONS: Many drugs, both prescription and nonprescription Find patient medical information for Coumadin Oral on WebMD including its You are encouraged to report negative side effects of prescription drugs to the Take Coumadin exactly as prescribed by your doctor. Follow all directions on your prescription label. Your doctor may occasionally change your dose to make See What are the possible side effects of COUMADIN? for more information about side effects. What is COUMADIN? COUMADIN is prescription medicine used Warfarin (also known under the brand names Coumadin, Jantoven, Marevan, ever ...
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Warfarin cancer treatment
You should finish with your doctor or primary if you are not sure. The tablet should be bad warfarin cancer treatment water. The ceremonial doses of Loratadine 10 mg Tablets are as has: Adults and warfarin cancers treatment over 12 10mg a. Puppy Adult Dose for Allergic Solon. 1 tablet (5 mg mg) ibid twice a day -or- 1 case (10 mg mg) orally once daily. Suppressive Adult Dose for Nasal Congestion. Oncology patients have a higher rate of VTE recurrences during oral anticoagulant therapy with VKAs and a higher anticoagulation-associated hemorrhagic risk as compared with noncancer patients. Warfarin therapy interacts with many chemotherapy agents, and INR control is difficult to achieve in cancer ‎Cancer and Thrombosis · ‎Treatment of Thrombosis in · ‎Novel Oral Anticoagulants. The association between cancer and venous thromboembolism (VTE) is well established. Importantly, VTE is a significant cause of mortality in cancer patients. Although long-term warfarin (Coumadin(trade mark); ...
http://calciocatania.info/hypodermic-needles/warfarin-cancer-treatment.php
Very Low Doses of Warfarin Can Prevent Thrombosis in Central Venous CathetersA Randomized Prospective Trial | Annals of...Very Low Doses of Warfarin Can Prevent Thrombosis in Central Venous CathetersA Randomized Prospective Trial | Annals of...
Objective: To determine whether very low doses of warfarin are useful in thrombosis prophylaxis in patients with central venous catheters.. Design: Patients at risk for thrombosis associated with chronic indwelling central venous catheters were prospectively and randomly assigned to receive or not to receive 1 mg of warfarin, beginning 3 days before catheter insertion and continuing for 90 days. Subclavian, innominate, and superior vena cava venograms were done at onset of thrombosis symptoms or after 90 days in the study.. Results: One hundred twenty-one patients entered the study, and 82 patients completed the study. Of 42 patients completing the study while receiving warfarin, 4 had venogram-proven thrombosis. All 4 had symptoms from thrombosis. Of 40 patients completing the study while not receiving warfarin, 15 had venogram-proven thrombosis, and 10 had symptoms from thrombosis (P , 0.001). There were no measurable changes in the coagulation values assayed due to this warfarin dose, except ...
http://annals.org/aim/article-abstract/703745/very-low-doses-warfarin-can-prevent-thrombosis-central-venous-catheters
Rivaroxaban versus warfarin and dabigatran in atrial fibrillation: comparative effectiveness and safety in Danish routine care...Rivaroxaban versus warfarin and dabigatran in atrial fibrillation: comparative effectiveness and safety in Danish routine care...
PURPOSE: To evaluate effectiveness and safety of rivaroxaban versus warfarin or dabigatran etexilate in a prospective cohort of routine care non-valvular atrial fibrillation (AF) patients during February 2012 to August 2014.. METHODS: We identified in nationwide health registries a cohort of AF patients who were new-users of rivaroxaban 15 mg (R15) or 20 mg (R20); dabigatran 110 mg (D110) or 150 mg (D150); or warfarin. Propensity-adjusted Cox regression was used to compare outcome rates in four settings: R15 vs. warfarin; R15 vs. D110; R20 vs. warfarin; and R20 vs. D150.. RESULTS: Rivaroxaban users (R15: n = 776; R20: n = 1629) were older and with more comorbidities than warfarin (n = 11 045) and dabigatran users (D110: n = 3588; D150: n = 5320). Rivaroxaban 15-mg users had the overall highest crude mortality rate. After propensity adjustment, rivaroxaban had lower stroke rates vs. warfarin (R15: hazard ratio [HR] 0.46, 95% confidence interval [CI]: 0.26-0.82; R20 HR: 0.72, 95%CI: ...
https://www.radcliffecardiology.com/rivaroxaban-versus-warfarin-and-dabigatran-atrial-fibrillation-comparative-effectiveness-and-safety
Abstract 6074: Vitamin K Epoxide Reductase Genotype Alters Warfarin Dose Requirements in Pediatric Patients | CirculationAbstract 6074: Vitamin K Epoxide Reductase Genotype Alters Warfarin Dose Requirements in Pediatric Patients | Circulation
Warfarin is an oral anticoagulant used for prevention of thromboembolism in children. Its dosing is difficult due to the narrow therapeutic index & individual variability in effective dosage. Genetic polymorphism in 2 enzymes involved in warfarin metabolism, vitamin K epoxide reductase (VKORC) & cytochrome P450 isoenzyme 2C9 (CYP2C9), have been associated with lower dose requirements in adults. Testing for these polymorphisms is now recommended and being performed to guide dosing in adult patients(pts). Currently there is no information available on these polymorphisms & warfarin dosing in children. To examine the relationship between warfarin dosing & polymorphisms of CYP2C9 & VKORC1 in pediatric patients. Pts 0 -18 years old on warfarin for minimum 2 weeks were included. Data included ethnicity, age, weight, body surface area, gender, indication, dose, INR, target INR, medical illness or medications & adverse effects. Blood sample tested for CYP2C9 & VKORC1 genotypes & correlated with above ...
http://circ.ahajournals.org/content/118/Suppl_18/S_1056.1
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Minor Oral Surgery Procedures in Patients Taking Warfarin : A 5-year retrospective study at Sultan Qaboos University Hospital,...
Minor Oral Surgery Procedures in Patients Taking Warfarin : A 5-year retrospective study at Sultan Qaboos University Hospital, Sultanate of Oman
https://journals.squ.edu.om/index.php/squmj/article/view/1441/0
Effects of ankaferd blood stopper on soft tissue healing in warfarin treated rats | AVESİSEffects of ankaferd blood stopper on soft tissue healing in warfarin treated rats | AVESİS
Ankaferd Blood Stopper (ABS) is a new promising local haemostatic agent. Although there are many studies showing its mechanism of haemostasis, histological and biochemical effects of ABS have not been studied in detail. Aim of this study was to evaluate the effects of this new generation local haemostatic agent on warfarin treated rats focusing on short term soft tissue healing. 12 systemically warfarin treated (warfarin group) and 12 none treated Wistar - Albino rats (control group) were selected for the trial. Rats in warfarin group were treated intraperitonally 0,1 mg/kg warfarin and rats in control group were given 1ml/kg saline 3 days earlier to surgical procedure and continued until sacrification. All rats had incisions on dorsal dermal tissue which was applied ABS or no haemostatic agent (NHAA) before suturing. Six of each group are sacrified on day 4, and the other 6 were sacrified on day 8. Prothrombin time (PT) in blood samples, collagen rate and histological evaluation in skin samples ...
https://avesis.marmara.edu.tr/yayin/08719363-95c4-42d1-90a4-acfee80e21a5/effects-of-ankaferd-blood-stopper-on-soft-tissue-healing-in-warfarin-treated-rats
Buy Coumadin | Order Warfarin UK
When this drugs, the most drugs are no longer carboxylated at least glutamic acid serums, and are unique of binding to the endothelial duel of blood does, and are thus biologically curious. Specially complete your healthcare provider to ensure the cholesterol coumadin on this page exists to your indoor circumstances. Miss Apps. Overused rare complication that may occur early during warfarin heparin usually within 3 to 8 weeks of developing is hard toe merry. Warfarin inhibits epoxide reductase [72] slowly the VKORC1 radiology [73] [74]thereby relieving willing vitamin K and beauty K analog in the symptoms, which blocks the carboxylation ginseng of the glutamyl carboxylase. Warfarin comes as a day to take by mouth. Coumadin evolves. Coumadin, others [2]. Textured 3 April Thus, model clinical indications for warfarin use are very similarthe most of artificial heart problemsdeep venous catheterand permanent side where the embolized clots first form in veins. Call your boyfriend if you miss a dose ...
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Dabigatran Dual Therapy Versus Warfarin Triple Therapy Post-PCI in Patients With Atrial Fibrillation and DiabetesDabigatran Dual Therapy Versus Warfarin Triple Therapy Post-PCI in Patients With Atrial Fibrillation and Diabetes
OBJECTIVES: The aim of this study was to evaluate dabigatran dual therapy versus warfarin triple therapy in patients with or without diabetes mellitus in the RE-DUAL PCI (Randomized Evaluation of Dual Antithrombotic Therapy With Dabigatran Versus Triple Therapy With Warfarin in Patients With Nonvalvular Atrial Fibrillation Undergoing Percutaneous Coronary Intervention) trial.. BACKGROUND: It is unclear whether dual therapy is as safe and efficacious as triple therapy in patients with atrial fibrillation with diabetes following percutaneous coronary intervention.. METHODS: In RE-DUAL PCI, 2,725 patients with atrial fibrillation (993 with diabetes) who had undergone PCI were assigned to warfarin triple therapy (warfarin, clopidogrel or ticagrelor, and aspirin) or dabigatran dual therapy (dabigatran 110 mg or 150 mg twice daily and clopidogrel or ticagrelor). Median follow-up was 13 months. The primary outcome was the composite of major bleeding or clinically relevant nonmajor bleeding, and the ...
http://www.diva-portal.org/smash/record.jsf?pid=diva2:1381228
Warfarin - For All Medical Treatment Options Explained, Visit CureCrowdWarfarin - For All Medical Treatment Options Explained, Visit CureCrowd
Despite its effectiveness, treatment with warfarin has several shortcomings. Many commonly used medications interact with warfarin, as do some foods (particularly fresh plant-based foods containing vitamin K) and its activity has to be monitored by blood testing for the international normalized ratio (INR) to ensure an adequate yet safe dose is taken.[2] A high INR predisposes to a high risk of bleeding, while an INR below the therapeutic target indicates that the dose of warfarin is insufficient to protect against thromboembolic events.. Warfarin and related 4-hydroxycoumarin-containing molecules decrease blood coagulation by inhibiting vitamin K epoxide reductase, an enzyme that recycles oxidized vitamin K to its reduced form after it has participated in the carboxylation of several blood coagulation proteins, mainly prothrombin and factor VII. For this reason, drugs in this class are also referred to as vitamin K antagonists.[2] When administered, these drugs do not anticoagulate blood ...
https://www.curecrowd.com/treatments/jantoven
Mirtazapine interaction warfarin
We studied 330 people who take Coumadin and Mirtazapine from FDA. Drug interactions are found. See what they are, when they happen and for whom. We studied 364 people who take Mirtazapine and Warfarin sodium from FDA. Drug interactions are found. See what they are, when they happen and for whom.. Mirtazapine/warfarin interaction. Nasal bleeding and increased PT-INR: case report. Case report. First Online: 25 June 2016. Some medical conditions may interact with mirtazapine. Tell your effectiveness; Warfarin because the risk of its side effects may be increased by mirtazapine. Had severe allergy reacttion - swollen lips tongue and throat, couldnt breath - dr treated me for asthma attack - dont have asthma - face and. Antidepressant-warfarin interaction and associated gastrointestinal bleeding Also mirtazapine, which is not believed to interact with warfarin.. Each film-coated tablet contains 30mg of mirtazapine Interaction with serotonergic active substances: serotonin syndrome may occur when to ...
http://hobidlavas.ru/mirtazapine-interaction-warfarin.html
Warfarin and enteral feedingsWarfarin and enteral feedings
Effect of enteral nutrition on warfarin therapy. Appropriate timing of medication in relation to feeds may help minimise the interactions. If it is not feasible to withhold enteral feeding, drug plasma levels and patients clinical progress should be closely monitored, and consideration should be given to increase the oral dosage.. Dietary interaction with phenytoin. Difficulty with anticoagulation may still be experienced with the newer formulations. Supplemental Content Full text links. Choose courses based on your needs. Didnt get the message? Predictable reduction in anticoagulant activity of warfarin by small amounts of vitamin K.. Develop Your Own Curriculum. Some indicators[6,10] which may prompt medical staff to check for possible interaction include: The warfarin solubility was higher when enteral formula was added. ...
http://tropicalmoka.com/sildenafil-citrate/warfarin-and-enteral-feedings.php
Study compares Pradaxa to warfarin | Consumer Drug ReportStudy compares Pradaxa to warfarin | Consumer Drug Report
A new study, published in the Journal of the American College of Cardiology, compared the side effects of Pradaxa use and Warfarin. Both medications are considered anticoagulants, or blood thinners, and are typically prescribed to treat non-valvular atrial fibrillation, a condition in which the heart does not beat properly.. The purpose of the study was to determine if Pradaxa could be used as a blood thinning medication for patients diagnosed with atrial fibrillation. About 290 people were involved in the study, half of whom received Pradaxa while the other half received warfarin.. The researchers from the University of Kansas Hospital and Medical Center state that the group of Pradaxa users faced a higher risk for experiencing adverse side effects including bleeding problems, stroke, and mini strokes than warfarin users. According to the study Pradaxa users had a 16% higher risk. Pradaxa is included in a class of drugs referred to as direct thrombin inhibitors which work by preventing the ...
http://consumer-drug-report.com/pradaxa/study-compares-pradaxa-warfarin-160212084857
Thrombus - WikipediaThrombus - Wikipedia
Anticoagulants are drugs used to prevent the formation of blood clots, reducing the risk of stroke, heart attack and pulmonary embolism. Heparin and warfarin are used to inhibit the formation and growth of existing thrombi, with the former used for acute anticoagulation while the latter is used for long-term anticoagulation.[2] The mechanism of action of heparin and warfarin are different as they work on different pathways of the coagulation cascade.[6] Heparin works by binding to and activating the enzyme inhibitor antithrombin III, an enzyme that acts by inactivating thrombin and factor Xa.[6] In contrast, warfarin works by inhibiting vitamin K epoxide reductase, an enzyme needed to synthesize vitamin K dependent clotting factors II, VII, IX, and X.[6][7] Bleeding time with heparin and warfarin therapy can be measured with the partial thromboplastin time (PTT) and prothrombin time (PT), respectively.[7]. Once clots have formed, other drugs can be used to promote thrombolysis or clot breakdown. ...
https://en.m.wikipedia.org/wiki/Blood_clots
The Comparative Safety and Efficacy of Direct Acting Oral Anticoagulants Relative to Warfarin Following Liver Transplantation -...The Comparative Safety and Efficacy of Direct Acting Oral Anticoagulants Relative to Warfarin Following Liver Transplantation -...
Purpose: This study describes the comparative safety and efficacy of direct acting oral anticoagulants (DOACs) relative to warfarin following liver transplantation, at a large academic transplant center.. *Methods: This was a single-center, retrospective cohort review of adult liver transplant recipients prescribed either a DOAC or warfarin between January 2014 and January 2018. Patients were excluded if they had active cancer or discontinued anticoagulation therapy prior to 60 days for a reason other than acute bleeding or thrombosis. Patients receiving DOACs were matched with warfarin treated controls using an exact greedy matching algorithm based upon the following clinical parameters: donor type, age, history of hepatocellular carcinoma, indication for anticoagulation, HAS-BLED score, timing of anticoagulation, and duration of anticoagulation. Matched patients were then followed from the time of anticoagulation initiation, until treatment discontinuation or study conclusion. The primary ...
https://atcmeetingabstracts.com/abstract/the-comparative-safety-and-efficacy-of-direct-acting-oral-anticoagulants-relative-to-warfarin-following-liver-transplantation/?shared=email&msg=fail
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Warfarin is a blood-thinning drug that functions by inhibiting vitamin K-dependent clotting factors. Warfarin is prescribed by doctors for people with various conditions, such as atrial fibrillation, artificial heart valves, a history of serious blood clots, clotting disorders (hypercoagulability), and placement of indwelling catheters or ports. Usually, blood tests must be done regularly to evaluate the extent of blood thinning, using a test for prothrombin time (PT) or the international normalized ratio (INR). Vitamin K can decrease the blood-thinning effects of warfarin and will therefore lower the PT or INR value. This may increase the risk of clotting. Therefore, people taking warfarin are usually warned to avoid foods with high vitamin K content (such as green leafy vegetables) and to avoid vitamin K supplements. Conversely, vitamin K is used to treat overdoses or any excess anticoagulant effects of warfarin and to reverse the effects of warfarin prior to surgery or other procedures. ...
http://www.wilkinsonpharmacy.com/ns/DisplayMonograph.asp?storeID=CA16677413FA4D59A0FF53842F6ED4E5&DocID=bottomline-vitamink
Thrombus - WikipediaThrombus - Wikipedia
Blood clot prevention and treatment reduce the risk of stroke, heart attack and pulmonary embolism. Heparin and warfarin are used to inhibit the formation and growth of existing thrombi, with the former used for acute anticoagulation while the latter is used for long-term anticoagulation.[2] The mechanism of action of heparin and warfarin are different as they work on different pathways of the coagulation cascade.[5] Heparin works by binding to and activating the enzyme inhibitor antithrombin III, an enzyme that acts by inactivating thrombin and factor Xa.[5] In contrast, warfarin works by inhibiting vitamin K epoxide reductase, an enzyme needed to synthesize vitamin K dependent clotting factors II, VII, IX, and X.[5][6] Bleeding time with heparin and warfarin therapy can be measured with the partial thromboplastin time (PTT) and prothrombin time (PT), respectively.[6] Some treatments have been derived from bacteria. One drug is streptokinase, which is an enzyme secreted by several streptococcal ...
https://en.wikipedia.org/wiki/Cerebral_thrombosis
Thrombus - WikipediaThrombus - Wikipedia
Blood clot prevention and treatment reduce the risk of stroke, heart attack and pulmonary embolism. Heparin and warfarin are used to inhibit the formation and growth of existing thrombi, with the former used for acute anticoagulation while the latter is used for long-term anticoagulation.[2] The mechanism of action of heparin and warfarin are different as they work on different pathways of the coagulation cascade.[5] Heparin works by binding to and activating the enzyme inhibitor antithrombin III, an enzyme that acts by inactivating thrombin and factor Xa.[5] In contrast, warfarin works by inhibiting vitamin K epoxide reductase, an enzyme needed to synthesize vitamin K dependent clotting factors II, VII, IX, and X.[5][6] Bleeding time with heparin and warfarin therapy can be measured with the partial thromboplastin time (PTT) and prothrombin time (PT), respectively.[6] Some treatments have been derived from bacteria. One drug is streptokinase, which is an enzyme secreted by several streptococcal ...
https://en.wikipedia.org/wiki/Blood_clots
Thrombus - WikipediaThrombus - Wikipedia
Blood clot prevention and treatment reduce the risk of stroke, heart attack and pulmonary embolism. Heparin and warfarin are used to inhibit the formation and growth of existing thrombi, with the former used for acute anticoagulation while the latter is used for long-term anticoagulation.[2] The mechanism of action of heparin and warfarin are different as they work on different pathways of the coagulation cascade.[5] Heparin works by binding to and activating the enzyme inhibitor antithrombin III, an enzyme that acts by inactivating thrombin and factor Xa.[5] In contrast, warfarin works by inhibiting vitamin K epoxide reductase, an enzyme needed to synthesize vitamin K dependent clotting factors II, VII, IX, and X.[5][6] Bleeding time with heparin and warfarin therapy can be measured with the partial thromboplastin time (PTT) and prothrombin time (PT), respectively.[6]. Some treatments have been derived from bacteria. One drug is streptokinase, which is an enzyme secreted by several ...
https://en.m.wikipedia.org/wiki/Blood_clot
Renal Outcomes in Anticoagulated Patients With Atrial Fibrillation<...
TY - JOUR. T1 - Renal Outcomes in Anticoagulated Patients With Atrial Fibrillation. AU - Yao, Xiaoxi. AU - Tangri, Navdeep. AU - Gersh, Bernard J.. AU - Sangaralingham, Lindsey R.. AU - Shah, Nilay D. AU - Nath, Karl A. AU - Noseworthy, Peter. PY - 2017/11/28. Y1 - 2017/11/28. N2 - Background Lifelong oral anticoagulation, either with warfarin or a non-vitamin K antagonist oral anticoagulant (NOAC), is indicated for stroke prevention in most patients with atrial fibrillation (AF). Emerging evidence suggests that NOACs may be associated with better renal outcomes than warfarin. Objectives This study aimed to compare 4 oral anticoagulant agents (apixaban, dabigatran, rivaroxaban, and warfarin) for their effects on 4 renal outcomes: ≥30% decline in estimated glomerular filtration rate (eGFR), doubling of the serum creatinine level, acute kidney injury (AKI), and kidney failure. Methods Using a large U.S. administrative database linked to laboratory results, the authors identified 9,769 patients ...
https://mayoclinic.pure.elsevier.com/en/publications/renal-outcomes-in-anticoagulated-patients-with-atrial-fibrillatio
Warfarin sodium (CAS 129-06-6) Industry Market Share, Supply and Consumption 2016 to 2021 Global and Chinese Market Research...Warfarin sodium (CAS 129-06-6) Industry Market Share, Supply and Consumption 2016 to 2021 Global and Chinese Market Research...
Warfarin sodium (CAS 129-06-6) Industry Market Share, Supply and Consumption 2016 to 2021 Global and Chinese Market Research Report
https://www.newsmaker.com.au/news/40992/warfarin-sodium-cas-129066-industry-market-share-supply-and-consumption-2016-to-2021-global-and-chinese-market-research-report
Tips From Other Journals - American Family PhysicianTips From Other Journals - American Family Physician
Because conventional warfarin therapy (a target International Normalized Ratio [INR] of 2.0 to 3.0) has been shown to virtually eliminate the risk of recurrent venous thromboembolism, interest has developed in attempting low-intensity anticoagulation. The latter technique still may be effective in preventing blood clots but may decrease the risk of serious bleeding that sometimes occurs with standard warfarin administration. Kearon and colleagues designed a trial of low-intensity versus conventional-intensity anticoagulation in patients with a history of deep venous thrombosis or pulmonary embolism.. The investigators screened 1,455 consecutive patients with unprovoked venous thromboembolism and enrolled 738 patients in the study. The most common causes for exclusion were declined consent, an additional indication for warfarin use beyond prophylaxis of recurrent blood clots (e.g., atrial fibrillation), or a life expectancy of less than two years. All patients had completed at least three months ...
https://www.aafp.org/afp/2004/0301/p1272.html
Effect of Clopidogrel and or Aspirin versus Warfarin on Postoperative Bleeding after Tooth Extractions for Ali Emad Mahmoud...Effect of Clopidogrel and or Aspirin versus Warfarin on Postoperative Bleeding after Tooth Extractions for Ali Emad Mahmoud...
Thesis, English, Effect of Clopidogrel and or Aspirin versus Warfarin on Postoperative Bleeding after Tooth Extractions for Ali Emad Mahmoud Mahmoud
http://www.philadelphia.edu.jo/newlibrary/eng/english-books/671-english-books/102710-engb-102710
Intracranial Hemorrhage Among Patients With Atrial Fibrillation Anticoagulated With Warfarin or Rivaroxaban: The Rivaroxaban...Intracranial Hemorrhage Among Patients With Atrial Fibrillation Anticoagulated With Warfarin or Rivaroxaban: The Rivaroxaban...
This post-hoc analysis of the ROCKET AF study details the clinical characteristics associated with ICH events in patients treated with either warfarin or rivaroxaban for stroke prevention in AF. This study describes a new scoring system (PANWARDS) for prediction of ICH risk. This new scoring system adds to the currently available scoring systems for predicting overall major bleeding risk (e.g., HAS-BLED) and ischemic stroke risk (e.g., CHA2DS2-VASc). Although not yet validated in patients taking other oral anticoagulants, such as dabigatran and apixaban, the new scoring system is applicable to a large number of patients treated with either warfarin or rivaroxaban for stroke prevention in AF. However, usability of the scoring system is limited due to the continuous nature of the variables, which limits a providers ability to recall them from memory or to apply the scoring system without a reference tool. ...
http://www.acc.org/latest-in-cardiology/journal-scans/2014/05/08/16/10/intracranial-hemorrhage-among-patients-with-atrial-fibrillation
Adherence to oral anticoagulant therapy in secondary stroke prevention | PPAAdherence to oral anticoagulant therapy in secondary stroke prevention | PPA
Adherence to oral anticoagulant therapy in secondary stroke prevention – impact of the novel oral anticoagulants Sebastian Luger,1 Carina Hohmann,2 Daniela Niemann,1 Peter Kraft,3 Ignaz Gunreben,3 Tobias Neumann-Haefelin,2 Christoph Kleinschnitz,3 Helmuth Steinmetz,1 Christian Foerch,1 Waltraud Pfeilschifter1 1Department of Neurology, University Hospital Frankfurt, Frankfurt am Main, 2Department of Neurology, Klinikum Fulda gAG, Fulda, 3Department of Neurology, University Hospital Würzburg, Würzburg, Germany Background: Oral anticoagulant therapy (OAT) potently prevents strokes in patients with atrial fibrillation. Vitamin K antagonists (VKA) have been the standard of care for long-term OAT for decades, but non-VKA oral anticoagulants (NOAC) have recently been approved for this indication, and raised many questions, among them their influence on medication adherence. We assessed adherence to VKA and NOAC in secondary stroke prevention. Methods: All patients treated from October 2011 to
https://www.dovepress.com/adherence-to-oral-anticoagulant-therapy-in-secondary-stroke-prevention-peer-reviewed-article-PPA
Effect of Oral Anticoagulant Therapy on Coagulation Activity and Inflammatory Markers in Patients with Atrial Fibrillation...Effect of Oral Anticoagulant Therapy on Coagulation Activity and Inflammatory Markers in Patients with Atrial Fibrillation...
Atrial fibrillation (AF) is associated with inflammatory and hypercoagulability state. Previous studies evaluated the safety and efficacy of dabigatran and warfarin in prevention of thrombothic complications. This study was intended to assess the influence of these drugs on hemostatic and inflammatory markers among patient underwent pulmonary vein ablation. A total of 100 patients with AF who underwent catheter ablation were randomized to treatment with dabigatran (D) 110 mg twice daily or warfarin (W) adjusted to an international normalized ratio (INR) of 2.0 to 3.0 for 3 months after ablation procedure. C - reactive protein (CRP), D-dimer, prothrombin fragment F1 + 2 (F1 + 2), were measured at baseline before ablation procedures, after 30 days and after 90 days of treatment. After 3 months, the D-dimer was 164.9 ± 48.9 in Dabigatran and 197.2 ± 58.6 in warfarin group, F1 + 2 was 0.4 ± 0.2 in dabigatran and 0.8 ± 0.2 in warfarin group and CRP level was 1.8 ± 1.6 in Dabigatran and 5.1 ± 5 in
http://ijpr.sbmu.ac.ir/article_1368.html
Preaudit data collection on commencing warfarin therapy in paediatric congenital heart disease patients to aid guideline...Preaudit data collection on commencing warfarin therapy in paediatric congenital heart disease patients to aid guideline...
Results There were eight new patients commenced on warfarin during the study period; seven postsurgery and one post pulmonary embolism. Documentation in the medical notes was variable; no documented reason why warfarin started or that verbal or written information given to patient/parents, the majority of loading doses used were documented and all of the INR results post surgery was detailed.. As regards loading and target ranges; less than half of patients complied with the day 2-7 loading regimen protocol during the study period but at discharge seven out of the eight patients were in target range. The post discharge INR results were 46% within range, only one patient had an INR of greater than five and none had an INR greater than 8.. ...
http://adc.bmj.com/content/97/5/e5.1
PREVAIL: Comparable Stroke Reduction and Less Major Bleeding with LAAC vs. Warfarin in Nonvalvular AFib - American College of...PREVAIL: Comparable Stroke Reduction and Less Major Bleeding with LAAC vs. Warfarin in Nonvalvular AFib - American College of...
Left atrial appendage closure (LAAC) with the Watchman device prevents stroke in patients with nonvalvular atrial fibrillation (AFib) comparable to warfarin, with reduced major bleeding and mortality, according to the five-year results of the PREVAIL and PROTECT-AF trials, presented at TCT 2017 and simultaneously published in the Journal of the American College of Cardiology.. Vivek Y. Reddy, MD, et al., reported the final, five-year results of PREVAIL, both alone and as part of a patient-level meta-analysis with PROTECT-AF five-year data. In the two trials combined, 1,114 patients with nonvalvular AFib were randomized to LAAC with the Watchman device (n = 732) or warfarin (n = 382) for 4,343 patient-years. The first primary efficacy endpoint in PREVAIL was the same as the primary endpoint in PROTECT-AF - the composite of stroke, systemic embolism or cardiovascular/unexplained death. In PREVAIL, the second primary efficacy endpoint was the composite of ischemic stroke or systemic embolism after ...
http://www.acc.org/latest-in-cardiology/articles/2017/10/27/13/34/thurs-1130am-prevail-tct-2017
Long-term prognostic impact of anticoagulation on patients with atrial fibrillation undergoing hemodialysis | Nefrología ...Long-term prognostic impact of anticoagulation on patients with atrial fibrillation undergoing hemodialysis | Nefrología ...
hospitalizations, the excess risk attributable to anticoagulant therapy remained significant after the multivariate adjustment [IRR = 3.94 CI, 95% CI (1.06-14.69), p=0.041]. Finally, there was also a tendency to an increased risk of repeated hospitalizations of ischemic cause in anticoagulated patients [IRR = 5.80, 95% CI (0.86-39.0), p=0.071].. Anticoagulation and recurrent bleeding. There was a tendency of a higher frequency of total hemorrhages and also major hemorrhages in anticoagulated patients [1.93 vs 1.11 (p=0.113) and 1.05 vs 0.32 (p=0.051)]. After multivariate adjustment, we observed a tendency toward an increased risk of recurrent bleeding in the anticoagulated patients [IRR = 4.43, 95% CI (0.94-20.81), p=0.059]. Regarding major bleeding, although the differences were ostensible, these did not become statistically significant [IRR= P13.38, 95% CI (0.47-382.68), p,0.129)].. Time in therapeutic range (TRT) and hemorrhagic events in anticoagulated patients. Our anticoagulated patients ...
https://revistanefrologia.com/en-long-term-prognostic-impact-anticoagulation-on-articulo-S2013251418300853
High inr warfarin guidelines
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http://egregore.tk/high-inr-warfarin-guidelines
URIs, Antibiotics Affect Warfarin | Medpage TodayURIs, Antibiotics Affect Warfarin | Medpage Today
Having an acute upper respiratory tract infection -- with or without treatment with an antibiotic -- may be associated with excessive anticoagulation in patients taking warfarin, a retrospective study
https://www.medpagetoday.com/cardiology/arrhythmias/43893
Emergency management of minor head injury in anticoagulated patients | Emergency Medicine JournalEmergency management of minor head injury in anticoagulated patients | Emergency Medicine Journal
A retrospective analysis conducted by Li et al11 included 144 anticoagulated patients attending the ED with head injury. Of these patients, 134 (93%) were described as receiving their injury from a simple fall. This study included patients taking warfarin who had incurred head injury and subsequently had CT head scan. Patients excluded were those with new neurology, altered mentation or who were deemed high or moderate risk. This group found the incidence of intracranial haemorrhage in their study to be 6.2% (9/144), with six parenchymal haemorrhages, two subdural haematomas and a single subarachnoid haemorrhage being described. The authors of this study concluded that significant numbers of warfarinised patients develop intracranial pathology with even minor head injury. The authors postulate that this subset of patients should be considered at moderate risk and go on to recommend intracranial imaging for all warfarinised head injury patients during emergency assessment, regardless of ...
https://emj.bmj.com/content/28/2/115?ijkey=45bd473d6fd4bb1d5a6d65456b230f8296374e41&keytype2=tf_ipsecsha
Addington Road Surgery - Library - Health A-ZAddington Road Surgery - Library - Health A-Z
Its important to have a healthy, balanced diet that includes lots of fruit and vegetables if youre taking anticoagulants, but you should avoid making frequent changes to the amount of green vegetables you eat and cranberry juice you drink if youre taking warfarin.. Cranberry juice and some green vegetables, such as broccoli, kale and spinach, contain a lot of vitamin K, which can reduce the effect of your medication. You can still include these in your diet while taking warfarin, as the clinic will adjust your dose accordingly, but its important to be consistent in the amount you consume. You should also seek advice before taking supplements containing vitamin K.. The effect of warfarin is also affected by alcohol. If youre taking warfarin, dont drink more than one or two alcoholic drinks a day and never binge drink. These food and drink restrictions dont usually apply if youre taking apixaban, dabigatran and rivaroxaban, but you should check with your GP, anticoagulant clinic or ...
http://www.addingtonroadsurgery.co.uk/Library/Conditions/Articles/anticoagulant-medicines/cautions
Oral anticoagulant therapy. Antithrombotic therapy and prevention of thrombosis. | Titulo Master en...
Background: The objective of this article is to summarize the published literature concerning the pharmacokinetics and pharmacodynamics of oral anticoagulant drugs that are currently available for clinical use and other aspects related to their management.. Methods: We carried out a standard review of published articles focusing on the laboratory and clinical characteristics of the vitamin K antagonists; the direct thrombin inhibitor, dabigatrán etexilate; and the direct factor Xa inhibitor, rivaroxaban.. Results: The antithrombotic effect of each oral anticoagulant drug, the interactions, and the monitoring of anticoagulation intensity are described in detail and discussed without providing specific recommendations. Moreover, we describe and discuss the clinical applications and optimal dosages of oral anticoagulant therapies, practical issues related to their initiation and monitoring, adverse events such as bleeding and other potential side effects, and available strategies for ...
https://titulomasterentrombosis.com/oral-anticoagulant-therapy-antithrombotic-therapy-and-prevention-of-thrombosis/
Comparison of bleeding risk among elderly patients and overall non-valvular atrial fibrillation patients treated with apixaban,...Comparison of bleeding risk among elderly patients and overall non-valvular atrial fibrillation patients treated with apixaban,...
This study investigated comparison of bleeding risk among elderly patients and overall non-valvular atrial fibrillation patients treated with apixaban,
http://adisinsight.springer.com/trials/700283853?error=cookies_not_supported&code=9c36d33c-e141-421f-98b1-bef65fbb1004
Australian Calciphylaxis Registry
In patients on warfarin treatment, warfarin withdrawal and switch to heparin use is urgently recommended, despite a lack of clear-cut prospective clinical evidence. However, the biological plausibility that vitamin K antagonism favours vascular calcification is relevant and vitamin K supplementation may be valuable. Basile et al. reported on successful hyperbaric oxygen therapy in a small number of calciphylaxis patients. This approach is based on the attempt to improve wound healing in ischemic tissues. In this study, affected areas were exposed to 100% oxygen at 2.5-atmospheres pressure in a closed chamber for 90 minutes per session in order to increase local oxygen pressure in the ulcerated and necrotic areas (number of session per patient ranged between 20 and 108). 8 out of 11 patients showed effective healing of ulcerations ...
http://www.calciphylaxis.org.au/What-is-Calciphylaxis/Therapeutic-Options
Delivering High-Quality Oral Anticoagulant Therapy: State of the Art in 2018Delivering High-Quality Oral Anticoagulant Therapy: State of the Art in 2018
Oral anticoagulants are both one of the most commonly prescribed classes of medication and one associated with the high risk of major complications. This session will focus on the optimal management of this class of medication. It will include discussions of clinically important drug interactions with oral anticoagulants, the role of specialized anticoagulation services, and tips for using vitamin K antagonists.|/p| |p|Dr. Vittorio Pengo will discuss the exclusive use of warfarin treatment in some patient categories despite its decrease after the entry of direct oral anticoagulants (DOACs). The beginning of treatment is of fundamental importance as thrombotic and hemorrhagic complications occur soon after starting treatment as a consequence of poor maintenance of international normalized ratio in the therapeutic range. Dr. Pengo will discuss how to treat an excess or a deficit of anticoagulation after stabilization of treatment, and how to handle bridging therapy in the occasion of surgery or invasive
https://ashondemand.org/Session/134830637/128604891
1 WARFARIN TARO Pill Images (Pink / Elliptical / Oval)1 WARFARIN TARO Pill Images (Pink / Elliptical / Oval)
Pill with imprint 1 WARFARIN TARO is Pink, Elliptical / Oval and has been identified as Warfarin Sodium 1 mg. It is supplied by Taro Pharmaceuticals U.S.A., Inc..
https://www.drugs.com/imprints/1-warfarin-taro-10545.html
Patient satisfaction after conversion from warfarin to direct oral anticoagulants for patients on extended duration of...Patient satisfaction after conversion from warfarin to direct oral anticoagulants for patients on extended duration of...
The mean Anti-Clot Burden and Benefits and SWAN Score was 93% (56/60) and 83% (24.8/30) respectively reflecting high satisfaction with anti-Xa direct oral anticoagulants. 120 patients stated preference for anti-Xa direct oral anticoagulants over warfarin. Leading perceptions driving this was the reduction in frequency of medical contact and fewer bleeding side effects. Thirteen patients (10.3%) experienced an adverse event after the anti-Xa direct oral anticoagulant switch (majority were non-major bleeding) but most remained on anti-Xa direct oral anticoagulant treatment after management options were implemented with continued high satisfaction scores.. ...
https://researchrepository.murdoch.edu.au/id/eprint/56375/
Lade Drinks - Getränkedosen bedrucken Can the Beverages You Drink Interact With Your Blood Thinner? - Getränkedosen bedrucken -...
Warfarin and its counterparts are commonly prescribed prescription medications today. Warfarin is a blood thinner, and is used primarily to prevent blood clots in patients with cardiovascular disease, or who are otherwise at a higher than average risk of stroke or heart attack.. Warfarin prevents clots from forming or from growing larger by stopping the formation of substances that cause clots. Because warfarin thins your blood, its important to stop taking it before any surgical procedures. Check with your doctor regarding his recommendations before your surgery.. Warfarins side effects include. o headache. o upset stomach. o diarrhea. o fever. o skin rash. Recently, there has been discussion that some beverages may inhibit the blood thinning properties of warfarin. The beverages in question include cranberry juice, grape juice and tea. The theory was that the beverages inhibited the human enzyme upon which warfarin works to prevent the formation of clots. This led patients to wonder if it ...
https://www.lade-drinks.de/lade-drinks-getraenkedosen-bedrucken-can-the-beverages-you-drink-interact-with-your-blood-thinner/
WHAT WERE READING - JOURNAL CLUB - Penn Neurology - Division of StrokeWHAT WERE READING - JOURNAL CLUB - Penn Neurology - Division of Stroke
Clopidogrel Plus Aspirin Versus Warfarin in Patients With Stroke and Aortic Arch Plaques https://doi.org/10.1161/STROKEAHA.113.004251 Apixaban versus Warfarin in Patients with Atrial Fibrillation DOI: 10.1056/NEJMoa1107039 Oral Anticoagulants vs Aspirin in Nonvalvular Atrial Fibrillation An Individual Patient Meta-analysis DOI:10.1001/jama.288.19.2441 Dabigatran versus Warfarin in Patients with Atrial Fibrillation DOI: 10.1056/NEJMoa0905561 Rivaroxaban versus Warfarin in Nonvalvular Atrial Fibrillation DOI:…
https://pennstroke.org/2019/09/24/what-were-reading-journal-club-54/
The changing face of oral anticoagulants. - Department of Physiology, Anatomy and Genetics (DPAG)
Warfarin has been the established oral anticoagulant for the last 50 years, being effective in the prevention and treatment of venous and arterial thromboembolic disorders. However, the frequent requirement for INR monitoring, multiple drug and food interactions have fuelled the need for development of new oral anticoagulants. Dabigatran is the first of a series of new oral anticoagulants that are emerging as the successors to warfarin. This new group of anticoagulants is rapidly gaining FDA and NICE approval and has proven non-inferiority to warfarin and viable alternatives to warfarin in the coming years. Given the obvious impact of this on dental treatment in the primary care and hospital setting this article aims to increase familiarisation with this new medicine group.
https://www.dpag.ox.ac.uk/publications/415737
WarfarinWarfarin
... major being 7-OH warfarin formed from S-warfarin by CYP2C9 and 10-OH warfarin from R-warfarin by CYP3A4. Warfarin is slower- ... Warfarin first came into large-scale commercial use in 1948 as a rat poison. Warfarin was formally approved for human use by ... Warfarin was first registered for use as a rodenticide in the US in 1948, and was immediately popular. Although warfarin was ... Warfarin interacts with many commonly used drugs, and the metabolism of warfarin varies greatly between patients. Some foods ...
https://en.wikipedia.org/wiki/Warfarin
Warfarin resistanceWarfarin resistance
In incomplete warfarin resistance, people only respond to high doses of warfarin; in complete warfarin resistance, the drug has ... Warfarin resistance is a rare condition in which people have varying degrees of tolerance to the anticoagulant drug warfarin. ... One gene that has been identified in warfarin resistance is VKORC1, a gene responsible for warfarin metabolism. It is inherited ... This can be because the drug is metabolized quickly or because the clotting cascade does not interact with warfarin as it ...
https://en.wikipedia.org/wiki/Warfarin_resistance
Warfarin necrosisWarfarin necrosis
... such as warfarin). Warfarin necrosis is a rare but severe complication of treatment with warfarin or related anticoagulants. ... Warfarin necrosis is also different from another drug eruption associated with warfarin, purple toe syndrome, which usually ... Zauber NP, Stark MW (May 1986). "Successful warfarin anticoagulation despite protein C deficiency and a history of warfarin ... so these drugs can also be used to prevent clotting during the first few days of warfarin therapy and thus prevent warfarin ...
https://en.wikipedia.org/wiki/Warfarin_necrosis
Fetal warfarin syndromeFetal warfarin syndrome
... appears in greater than 6% of children whose mothers took warfarin during pregnancy. Warfarin has a low ... Warfarin's ability to cause fetal warfarin syndrome in utero stems from its ability to limit vitamin K activation. Warfarin ... As warfarin can remain in the mother's body for up to five days, warfarin should not be administered in the days leading up to ... Fetal warfarin syndrome is a disorder of the embryo which occurs in a child whose mother took the medication warfarin (brand ...
https://en.wikipedia.org/wiki/Fetal_warfarin_syndrome
Vitamin-K-epoxide reductase (warfarin-sensitive)Vitamin-K-epoxide reductase (warfarin-sensitive)
At least one compound, Warfarin is known to inhibit this enzyme. Lee JJ, Fasco MJ (1984). "Metabolism of vitamin K and vitamin ... In enzymology, a vitamin-K-epoxide reductase (warfarin-sensitive) (EC 1.17.4.4) is an enzyme that catalyzes the chemical ...
https://en.wikipedia.org/wiki/Vitamin-K-epoxide_reductase_(warfarin-sensitive)
Vitamin-K-epoxide reductase (warfarin-insensitive)Vitamin-K-epoxide reductase (warfarin-insensitive)
In enzymology, a vitamin-K-epoxide reductase (warfarin-insensitive) (EC 1.17.4.5) is an enzyme that catalyzes the chemical ...
https://en.wikipedia.org/wiki/Vitamin-K-epoxide_reductase_(warfarin-insensitive)
CoumarinCoumarin
Warfarin - a coumarin - with brand name, Coumadin, is a prescription drug used as an anticoagulant to inhibit formation of ... "Warfarin". Drugs.com. 7 March 2019. Retrieved 13 April 2019. Farinola, N.; Piller, N. (June 1, 2005). "Pharmacogenomics: Its ... By inhibiting synthesis of vitamin K, a related compound is used as the prescription drug warfarin - an anticoagulant - to ... PSB-SB-487 PSB-SB-1202 Scopoletin can be isolated from the bark of Shorea pinanga warfarin (Coumadin) Coumarin is transformed ...
https://en.wikipedia.org/wiki/Coumarin
PhenprocoumonPhenprocoumon
Warfarin and phenprocoumon have the same mechanism of action, similar uses, side effects and interactions, and are also ... A rare but severe adverse effect is warfarin necrosis of the skin and subcutaneous tissue during the first days of treatment. ... The average half-life of warfarin is 40 hours, that of phenprocoumon 150 hours, almost four times as long. Both drugs show ... Finally, xabans are significantly more expensive than phenprocoumon and warfarin. LMWHs also have a fast onset of action, wide ...
https://en.wikipedia.org/wiki/Phenprocoumon
Prothrombin timeProthrombin time
The normal range for a healthy person not using warfarin is 0.8-1.2, and for people on warfarin therapy an INR of 2.0-3.0 is ... In patients on a vitamin K antagonist such as warfarin with supratherapeutic INR but INR less than 10 and no bleeding, it is ... They are used to determine the clotting tendency of blood, in such things as the measure of warfarin dosage, liver damage, and ... The target range for INR in anticoagulant use (e.g. warfarin) is 2 to 3. In some cases, if more intense anticoagulation is ...
https://en.wikipedia.org/wiki/Prothrombin_time
VKORC1VKORC1
As the pharmacological target of warfarin, VKORC1 is considered a candidate gene for the variability in warfarin response. ... Warfarin causes inhibition on VKORC1 activities and leads to a reduced amount of vitamin K available to serve as a cofactor for ... Lower warfarin doses are needed to inhibit VKORC1 and to produce an anticoagulant effect in carriers of the A allele. Genetic ... Warfarin is a commonly prescribed oral anticoagulant, or blood thinner used to treat blood clots such as deep vein thrombosis ...
https://en.wikipedia.org/wiki/VKORC1
AnticoagulantAnticoagulant
Both DOACs and warfarin are equivalently effective but compared to warfarin, DOACs have fewer drug interactions, no known ... Warfarin has an estimated incidence of bleeding of 15-20% per year and life-threatening bleeding rate of 1-3% per year. Newer ... The traditional ones (warfarin, other coumarins, and heparins) are in widespread use. Since the 2000s, a number of agents have ... Specifically with warfarin, four factor PCC (4F-PCC) has been shown to have superior safety and mortality benefits compared to ...
https://en.wikipedia.org/wiki/Anticoagulant
DabigatranDabigatran
It is used as an alternative to warfarin and does not require monitoring by blood tests. It is taken by mouth. Common side ... Compared to warfarin it has fewer interactions with other medications. It is a direct thrombin inhibitor. Dabigatran was ... It appears to be as effective as warfarin in preventing non-hemorrhagic strokes and embolic events in those with atrial ... In May 2014, the FDA reported the results of a large study comparing dabigatran with warfarin in 134,000 Medicare patients. The ...
https://en.wikipedia.org/wiki/Dabigatran
List of OMIM disorder codesList of OMIM disorder codes
RAB3GAP1 Warfarin resistance; 122700; VKORC1 Warfarin sensitivity; 122700; CYP2C9 Warsaw breakage syndrome; 613398; DDX11 ...
https://en.wikipedia.org/wiki/List_of_OMIM_disorder_codes
List of drugs: Cm-CoList of drugs: Cm-Co
Redirects to Warfarin. coumafos (INN) coumamycin (INN) coumazoline (INN) coumetarol (INN) Covan Covera-HS Coversyl covirasil ( ...
https://en.wikipedia.org/wiki/List_of_drugs:_Cm–Co
DPT vaccineDPT vaccine
DeDea L (January 2011). "The difference between Tdap and DTaP; dabigatran versus warfarin". JAAPA. 24 (1): 14. doi:10.1097/ ...
https://en.wikipedia.org/wiki/DPT_vaccine
Hypercoagulability in pregnancyHypercoagulability in pregnancy
Warfarin and other vitamin K-inhibiting agents are contraindicated during the first trimester of pregnancy because of the ... Still, there seems to be no teratogenic effect of warfarin before six weeks of gestation. However, unfractionated heparin and ... Shaul WL, Emery H, Hall JG (1975). "Chondrodysplasia punctata and maternal warfarin use during pregnancy". Am J Dis Child. 129 ... Unfractionated heparin, low molecular weight heparin, warfarin (not to be used during pregnancy) and aspirin remain the basis ...
https://en.wikipedia.org/wiki/Hypercoagulability_in_pregnancy
PriapismPriapism
Anticoagulants (heparin and warfarin). Antihypertensives (i.e., hydralazine, guanethidine and propranolol). Hormones (i.e., ...
https://en.wikipedia.org/wiki/Priapism
Boxed warningBoxed warning
"Black Box for Warfarin". Retrieved August 15, 2007. "Strongest warning suggested for ADHD drugs". CNN. Associated Press. ... the FDA added a boxed warning to the anticoagulant warfarin due to the risk of bleeding to death. In February 2006, the FDA's ...
https://en.wikipedia.org/wiki/Boxed_warning
NecrosisNecrosis
Nazarian RM, Van Cott EM, Zembowicz A, Duncan LM (2009). "Warfarin-induced skin necrosis". J. Am. Acad. Dermatol. 61 (2): 325- ...
https://en.wikipedia.org/wiki/Necrosis
Yuan-Tsong ChenYuan-Tsong Chen
International Warfarin Pharmacogenetics Consortium; Klein, T. E.; Altman, R. B.; Eriksson, N.; Gage, B. F.; Kimmel, S. E.; Lee ... His team identified VKORC1 gene variants to play a major role in determining the warfarin dosage, a widely prescribed ... They teamed with International Warfarin Consortium to formulate a universal algorithm that can better predict an optimal dosage ... "Safety Alerts for Human Medical Products - Warfarin (Marketed as Coumadin)". Archived from the original on 2022-02-12. ...
https://en.wikipedia.org/wiki/Yuan-Tsong_Chen
CalciphylaxisCalciphylaxis
Warfarin, a vitamin K antagonist discussed above, should be discontinued if possible. Other acceptable treatments may include ... Many end-stage kidney disease patients are also on a medication called warfarin, a vitamin K antagonist, that limits vitamin K ... Reported risk factors include female sex, obesity, elevated calcium-phosphate product, medications such as warfarin, vitamin D ... certain medications such as warfarin can also result in calciphylaxis. The first skin changes in calciphylaxis lesions are ...
https://en.wikipedia.org/wiki/Calciphylaxis
DicloxacillinDicloxacillin
Lacey CS (May 2004). "Interaction of dicloxacillin with warfarin". The Annals of Pharmacotherapy. 38 (5): 898. doi:10.1345/aph. ... Dicloxacillin has potential interactions with following drugs: Warfarin Methotrexate Tetracyclines Despite dicloxacillin being ...
https://en.wikipedia.org/wiki/Dicloxacillin
Discovery and development of direct Xa inhibitorsDiscovery and development of direct Xa inhibitors
He and his colleagues worked on several variations and ended up with a substance they named warfarin in 1948. It wasn't until ... Direct Xa inhibitors are just as efficacious as LMWH and warfarin but they are given orally and don't need as strict monitoring ... Warfarin treatment requires blood monitoring and dose adjustments regularly due to its narrow therapeutic window. If ... They are gradually taking over warfarin usage and low molecular weight heparins (LMWH). Indication for Xa inhibitors is ...
https://en.wikipedia.org/wiki/Discovery_and_development_of_direct_Xa_inhibitors
4-Hydroxycoumarins4-Hydroxycoumarins
See warfarin for this history. The synthetic drugs in the 4-hydroxycoumarin class are all noted primarily for their use as ... The simplest synthetic molecule in the 4-hydroxycoumarin class is warfarin, in which the aromatic 3-position substituent is a ... Coumadin is a brandname for warfarin). They are also referred to as "coumarins," in reference to their derivation, although ... were developed as rodenticides for rodents that have developed warfarin resistance. The second generation agents have even ...
https://en.wikipedia.org/wiki/4-Hydroxycoumarins
Vitamin KVitamin K
Warfarin is an anticoagulant drug. It functions by inhibiting an enzyme that is responsible for recycling vitamin K to a ... The proper anticoagulant action of warfarin is a function of vitamin K intake and drug dose. Due to differing absorption of the ... such as warfarin. A drug associated with increased risk of vitamin K deficiency is cefamandole, although the mechanism is ... so that the combination of vitamin intake and warfarin keep the anti-clotting activity in the therapeutic range. Vitamin K is a ...
https://en.wikipedia.org/wiki/Vitamin_K
Antiphospholipid syndromeAntiphospholipid syndrome
In pregnancy, low molecular weight heparin and low-dose aspirin are used instead of warfarin because of warfarin's ... anticoagulants such as warfarin are used to prevent further thrombosis. If warfarin is used, the INR is kept between 2.0 and ... Warfarin (brand name Coumadin) is not used during pregnancy because it can cross the placenta, unlike heparin, and is ... Direct-acting oral anticoagulants may be used as an alternative to warfarin, but not in people who are "triple positive" with ...
https://en.wikipedia.org/wiki/Antiphospholipid_syndrome
RoxithromycinRoxithromycin
... appears to interact with warfarin. This is shown by an increase in prothrombin time and/or international ... normalised ratio (INR) in patients taking roxithromycin and warfarin concurrently. As a consequence, severe bleeding episodes ...
https://en.wikipedia.org/wiki/Roxithromycin
DicoumarolDicoumarol
See warfarin for a more detailed discovery history. Identified in 1940, dicoumarol became the prototype of the 4- ... Link's work led to the development of the rat poison warfarin and then to the anticoagulants still in clinical use today. ... Nicole Kresge; Robert D. Simoni; Robert L. Hill (2005-02-25). "Sweet clover disease and warfarin review". Journal of Biological ... Wardrop, Douglas; Keeling, David (2008). "The story of the discovery of heparin and warfarin" (PDF). British Journal of ...
https://en.wikipedia.org/wiki/Dicoumarol
Cranberry juiceCranberry juice
"Coumadin Tablets (Warfarin Sodium Tablets, USP) Crystalline Coumadin for Injection (Warfarin Sodium for Injection, USP)" (PDF ... Cranberry juice may interfere with coumarins used as blood thinners, such as warfarin, causing an unstable INR. The British ... Aston, Jonathan L.; Lodolce, Amy E.; Shapiro, Nancy L. (2006). "Interaction Between Warfarin and Cranberry Juice". ...
https://en.wikipedia.org/wiki/Cranberry_juice
Angelica sinensisAngelica sinensis
A. sinensis may increase the anticoagulant effects of the drug warfarin (as it contains coumarins) and consequently increase ... Page, Robert Lee; Lawrence, Julie D. (July 1999). "Potentiation of Warfarin by Dong Quai". Pharmacotherapy. 19 (7): 870-876. ...
https://en.wikipedia.org/wiki/Angelica_sinensis
Warfarin (2005-110) | NIOSH | CDCWarfarin (2005-110) | NIOSH | CDC
Warfarin. CAS No: 81-81-2. NOTE:. (1) Efficacy of Medical Tests has not been evaluated.. (2) NIOSH references include ... Warfarin. Editor(s). /Author(s). Specific Medical Test(s) or Examination(s). Reference(s). ...
https://www.cdc.gov/niosh/docs/2005-110/nmed0242.html
Warfarin sensitivity: MedlinePlus GeneticsWarfarin sensitivity: MedlinePlus Genetics
Warfarin sensitivity is a condition in which individuals have a low tolerance for the drug warfarin. Explore symptoms, ... Warfarin sensitivity is a condition in which individuals have a low tolerance for the drug warfarin. Warfarin is an ... If people with warfarin sensitivity take the average dose (or more) of warfarin, they are at risk of an overdose, which can ... Individuals develop warfarin sensitivity because a lower warfarin dose is needed to inhibit the VKORC1 enzyme, as there is less ...
https://medlineplus.gov/genetics/condition/warfarin-sensitivity
Warfarin resistance: MedlinePlus GeneticsWarfarin resistance: MedlinePlus Genetics
Warfarin resistance is a condition in which individuals have a high tolerance for the drug warfarin. Explore symptoms, ... Warfarin resistance is a condition in which individuals have a high tolerance for the drug warfarin. Warfarin is an ... Both types of warfarin resistance are related to how the body processes warfarin. In some people with warfarin resistance, ... This reduction in warfarin binding causes incomplete warfarin resistance and results in a higher dose of warfarin needed to ...
https://medlineplus.gov/genetics/condition/warfarin-resistance/
Oxandrolone and warfarinOxandrolone and warfarin
Unknown author (‎2004)‎. Oxandrolone and warfarin. WHO drug information 2004 ; 18(‎2)‎ : 131 https://apps.who.int/iris/handle/ ...
https://apps.who.int/iris/handle/10665/72907
Novel Anticoagulants vs Warfarin: Latest AnalysesNovel Anticoagulants vs Warfarin: Latest Analyses
4 novel anticoagulants appear to be slightly more effective and safer than warfarin for preventing ischemic stroke. ... The low dose is almost inferior to warfarin and has a very favorable bleeding rate. Where this new drug fits into the market ... The event rate for stroke and systemic embolism in the warfarin group was 1.5% per year. In the intention-to-treat analysis, ... In all, 21,105 patients were randomly assigned to 3 groups: warfarin to achieve an INR between 2.0 and 3.0; low-dose edoxaban, ...
http://www.medscape.com/viewarticle/819746
CDC Super Warfarin | Emergency Preparedness & ResponseCDC Super Warfarin | Emergency Preparedness & Response
Super warfarin (long-acting anticoagulant)plus icon *Case Definition: "Super Warfarin" Poisoning ... Long-acting anticoagulant (super warfarin)plus icon *Case Definition: "Super Warfarin" Poisoning ... Case Definition: "Super Warfarin" Poisoning Clinical description, laboratory criteria for diagnosis, case classification, & ...
https://emergency.cdc.gov/agent/superwarfarin/
Oxandrolone and warfarinOxandrolone and warfarin
Unknown author (‎2004)‎. Oxandrolone and warfarin. WHO drug information 2004 ; 18(‎2)‎ : 131 https://extranet.who.int/iris/ ...
https://extranet.who.int/iris/restricted/handle/10665/72907?locale-attribute=en&
WarfarinWarfarin
... , Coumadin, Anticoagulation after Heart Valve Replacement, Valve Replacement and Anticoagulation, Vitamin K Antagonist ... warfarin (medication), anticoagulants warfarin, warfarin, Warfarin (product), Warfarin (substance), WARF. ... Warfarin. Warfarin Aka: Warfarin, Coumadin, Anticoagulation after Heart Valve Replacement, Valve Replacement and ... Warfarin is also used as a rodenticide. Definition (PDQ) A synthetic anticoagulant. Warfarin appears to inhibit the ...
https://fpnotebook.com/hemeonc/Pharm/Wrfrn.htm
Warfarin use and the risk of valvular calcificationWarfarin use and the risk of valvular calcification
Use of warfarin in patients with AF is associated with an increased prevalence of MVC, MAC or AVC. ... no warfarin. Patients and methods: Of 1155 patients, mean age 74 years, with AF, 725 (63%) were treated with warfarin and 430 ( ... MVC, MAC or AVC was present in 473 of 725 patients (65%) on warfarin vs. 225 of 430 patients (52%) not on warfarin (P , 0.0001 ... Warfarin use and the risk of valvular calcification J Thromb Haemost. 2009 Dec;7(12):2023-7. doi: 10.1111/j.1538-7836.2009. ...
https://pubmed.ncbi.nlm.nih.gov/19793187/?dopt=Abstract
Nanosphere Recalls Warfarin Test Cartridges | GenomeWebNanosphere Recalls Warfarin Test Cartridges | GenomeWeb
Warfarin, marketed as Coumadin by Bristol-Myers Squibb, is used to prevent potentially fatal clots in blood vessels. However, ... According to the FDAs April 9 notice, the reason for the recall is that a warfarin 2C9*2 mutant capture signal "was found to ... In September, Nanosphere became the first firm to receive clearance for a genetic test for warfarin sensitivity. The test runs ... Variability to warfarin response has been linked to mutations in two genes: CYP2C9 and VKORC1. ...
https://www.genomeweb.com/archive/nanosphere-recalls-warfarin-test-cartridges
DailyMed - WARFARIN SODIUM tabletDailyMed - WARFARIN SODIUM tablet
take warfarin sodium for a long time. Warfarin sodium is the active ingredient in warfarin sodium tablets. ... the half-life of R-warfarin is longer than that of S-warfarin. The half-life of R-warfarin ranges from 37 to 89 hours, while ... Warfarin sodium is a racemic mixture of the R- and S-enantiomers of warfarin. The S-enantiomer exhibits 2 to 5 times more ... Do not use warfarin sodium tablets for a condition for which they were not prescribed. Do not give warfarin sodium tablets to ...
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=0cbce382-9c88-4f58-ae0f-532a841e8f95
Watch the Warfarin! | PSNetWatch the Warfarin! | PSNet
Case Objectives Understand best practices for safe discharge of patients on warfarin. Describe recent advances in ... Finally, while this patient was on chronic warfarin, patients newly started on warfarin are at a much higher risk of ... The medical team correctly continued the patients warfarin on admission; patients in whom warfarin is held (often a temptation ... His warfarin was adjusted and ultimately his INR returned to the target range of 2.0 to 3.0. Unfortunately, this required ...
https://psnet.ahrq.gov/web-mm/watch-warfarin
Even With CKD, Warfarin Safely Cuts Events in Post-MI AF (Transcript)Even With CKD, Warfarin Safely Cuts Events in Post-MI AF (Transcript)
... its safe to give warfarin for AF in the setting of advanced renal disease. ... who were prescribed warfarin at discharge, compared with those not given warfarin, in an observational study based on the long- ... Of those discharged, 21.8% had been prescribed warfarin on leaving the hospital and 51.7% had CKD, defined as an eGFR ,60 mL/ ... Cite this: Even With CKD, Warfarin Safely Cuts Events in AF After MI, Study Finds - Medscape - Mar 04, 2014. ...
https://www.medscape.com/viewarticle/821444
Warfarin induces Skin Necrosis : Wheeless Textbook of OrthopaedicsWarfarin induces Skin Necrosis : Wheeless' Textbook of Orthopaedics
Warfarin induces Skin Necrosis. Warfarin induces Skin Necrosis. - microvascular thrombotic process which results in skin ... occurs in patients with partial deficiency of protein C within the 1st 1-2 days of warfarin therapy ...
https://www.wheelessonline.com/bones/spine/warfarin-induces-skin-necrosis/
CDC | Case Definition: Super Warfarin PoisoningCDC | Case Definition: "Super Warfarin" Poisoning
Super warfarin (long-acting anticoagulant)plus icon *Case Definition: "Super Warfarin" Poisoning ... Long-acting anticoagulant (super warfarin)plus icon *Case Definition: "Super Warfarin" Poisoning ... Case Definition: Long-Acting Anticoagulant (Super Warfarin). ...
https://www.emergency.cdc.gov/agent/superwarfarin/casedefinition.asp
Warfarin Drug Interactions, Anticoagulation Clinic | UC San Diego HealthWarfarin Drug Interactions, Anticoagulation Clinic | UC San Diego Health
Information on drug interactions with warfarin from the anticoagulation clinic at UC San Diego Health. ... Additionally, warfarin may alter serum phenytoin concentrations.. Rifampin. ↓. Expect 2- to 5-fold increase in warfarin dose ... Hold warfarin x1 for single dose. Expect 25-50% warfarin dose reduction for extended course. ... Expect 25-50% warfarin dose reduction.. Phenytoin. ↓ or ↑ Complex interaction: initially ↑ INR, but then ↓ after prolonged ...
https://health.ucsd.edu/for-health-care-professionals/anticoagulation-guidelines/warfarin/Pages/DrugInteractions.aspx
Pharmacogenomics of Warfarin in Hispanics and Latinos - Full Text View - ClinicalTrials.govPharmacogenomics of Warfarin in Hispanics and Latinos - Full Text View - ClinicalTrials.gov
Warfarin is a commonly used blood thinner to treat and prevent blood clots. It is important to take the right dose of warfarin ... Stable warfarin dose [ Time Frame: At time of enrollment ]. Dose of warfarin required to maintain stable INR for at least 2 ... This is why patients are closely monitored especially when they begin warfarin therapy. When clinicians prescribe warfarin, ... Pharmacogenomics of Warfarin in Hispanics and Latinos. The safety and scientific validity of this study is the responsibility ...
https://clinicaltrials.gov/ct2/show/NCT02972385?term=genomics%20DNA&%3Brecrs=abc
Personalized medicine in warfarin therapyPersonalized medicine in warfarin therapy
... that affect warfarin dose. The related report by Yang et al, Rapid Genotyping of SNPs Influencing Warfarin Drug Response by ... Warfarin is an anti-coagulant that is commonly used to prevent blood clots and embolism. However, warfarin dosing is ... that affect warfarin dose. The related report by Yang et al, "Rapid Genotyping of SNPs Influencing Warfarin Drug Response by ... Personalized medicine in warfarin therapy. by American Journal of Pathology Researchers from the Ohio State University have ...
https://phys.org/news/2010-02-personalized-medicine-warfarin-therapy.html
Single Men Have Special Difficulties When Prescribed WarfarinSingle Men Have Special Difficulties When Prescribed Warfarin
... which is easier to manage and has fewer interactions with food and drugs compared to warfarin.". « Click here to return to ... according to a new study finding that men prescribed warfarin who live alone have more problems than women in the same ... "Men who live on their own may need extra support to use warfarin, such as education, home visits, telephone contacts, or ... measurements is required for warfarin to be safe and effective, according to the report. Time in therapeutic range (TTR) is ...
https://www.uspharmacist.com/article/single-men-have-special-difficulties-when-prescribed-warfarin
warfarin Archives - malecare.orgwarfarin Archives - malecare.org
Warfarin is one of the drugs commonly prescribed to prevent these dangerous blood clots from ever forming. However, dosing of ... Proper Warfarin Dosing - Using Genetics. One of the significant secondary side effects resulting from of our advanced prostate ... Recall: Coumadin (warfarin sodium) Crystalline 5 mg Tablets - Tablets May Have Higher than Expected Potency ISSUE: Bristol- ... Myers Squibb initiated a voluntary recall of one lot of 1,000-count bottles of Coumadin (warfarin sodium) Crystalline 5 mg ...
https://malecare.org/tag/warfarin/
Does warfarin need to be stopped for device insertion? - HeartDoes warfarin need to be stopped for device insertion? - Heart
Does warfarin need to be stopped for device insertion?. Posted on June 12, 2013. by ... Electrophysiology, General cardiologyTagged devices, heparin, pacemaker, warfarin Post navigation. Previous post ... In this large multi-center prospective study, as compared with bridging therapy with heparin, a strategy of continued warfarin ... In the BRUISE-CONTROL study, 681 patients taking warfarin and requiring device implantation were randomly assigned in a 1:1 ...
https://blogs.bmj.com/heart/2013/06/12/does-warfarin-need-to-be-stopped-for-device-insertion/
You searched for Warfarin - MPRYou searched for Warfarin - MPR
Your search for Warfarin returned 2 results Active Filters. Click on a filter below to refine your search. Remove a filter to ...
https://www.empr.com/?article-type=m-feature&authors=15&published=over2years&s=Warfarin§ion=features
Blood Thinners Other Than Warfarin: Taking Them SafelyBlood Thinners Other Than Warfarin: Taking Them Safely
There are some extra steps you have to take if you take warfarin. To learn more, see Warfarin: Taking Your Medicine Safely. ... This Actionset is about all blood thinner medicinesexcept warfarin (Coumadin). ...
https://www.stlukesonline.org/health-services/health-information/healthwise/2015/05/15/13/43/blood-thinners-other-than-warfarin-taking-them-safely
Coumadin (warfarin) Safe Breakfast Recipes from Dr. GourmetCoumadin (warfarin) Safe Breakfast Recipes from Dr. Gourmet
Coumadin (warfarin) Safe Breakfast Recipes Breakfast really is the most important meal of the day. Start your day right with ...
https://www.drgourmet.com/warfarin/breakfast.shtml
Warfarin (Coumadin) & Cranberry Juice Interaction: ClotCare
Warfarin (Coumadin) - Cranberry Juice Interaction: Expert Finds Data Lacking ... Home , DVT/PE , Blood Clots , Coumadin/Warfarin , New Patients , Self Testing , Email List , Donate ... Warfarin - Cranberry Juice Interaction: Expert Finds Data Lacking Henry I. Bussey, Pharm.D.. June, 2006 ... Editors note: Of course, it is possible that cranberry juice might interact with warfarin through some other mechanism; and/or ...
http://clotcare.com/warfarincranberryjuice.aspx
warfarin Archives » ACVP Onlinewarfarin Archives » ACVP Online
If simvastatin or lovastatin are combined with dabigatran-brand name Pradaxa, an anti-clotting drug-hemorrhage risk increases.. A study published today in the Canadian Medical Association Journal found that within a cohort of almost 46,000 patients treated with dabigatran, the use of simvastatin or lovastatin, relative to other statins, increased the risk of a major hemorrhage by approximately 42 percent.*. Administrative data supported the authors hypothesis that these two commonly-prescribed, cholesterol-lowering statins would "increase the amount of dabigatran absorbed by the body," reads the St. Michaels Hospital press release, "something other statins would not be expected to do." A higher concentration of dabigatran, in turn, would result in higher bleeding risk.. Continue reading Study finds risky drug interaction between two common statins and anti-clotting drug for stroke. ...
https://www.acp-online.org/tag/warfarin/
Warfarin | Manage My PracticeWarfarin | Manage My Practice
An electronic monitor (the Med-E-Monitor) will track whether 100 participants are taking their warfarin. 50 patients will be ...
https://managemypractice.com/tag/warfarin/
Warfarin For Treating & Preventing Blood Clots | KidsHealth NZWarfarin For Treating & Preventing Blood Clots | KidsHealth NZ
Information about the use of warfarin for treating and preventing blood clots. ... The following leaflet for parents and carers is about the use of warfarin for treating and preventing blood clots. ... Information about the use of warfarin for treating and preventing blood clots. ...
https://kidshealth.org.nz/warfarin-treating-preventing-blood-clots?language=ko
Watch vitamin K while on warfarin - Clinical AdvisorWatch vitamin K while on warfarin - Clinical Advisor
Remind patients taking warfarin (Coumadin) that foods high in vitamin K (e.g., lentils, chickpeas, coleslaw, liver, hummus, ...
https://www.clinicaladvisor.com/home/clinical-pearls/watch-vitamin-k-while-on-warfarin/
Right warfarin dose determined by three genes | ExpertsvarRight warfarin dose determined by three genes | Expertsvar
"The adequate warfarin dosage for a patient is determined by three genes: VKORC1, CYP2C9, and CYP4F2. This is a step forward for ... She also says that this is the first truly large warfarin study in which all genes were reviewed at the same time. More than ... Right warfarin dose determined by three genes. Uppsala universitet 20 March, 2009 Medicine ... "We have previously studied selected genes that can affect warfarin treatment. Now that we have gone in and scanned the entire ...
https://www.expertsvar.se/en/pressmeddelanden/right-warfarin-dose-determined-by-three-genes/
AnticoagulantCoumadinAnticoagulantsTake warfarinAnticoagulation with warfarinDabigatranDOACVenous ThromboembolismNeeded to inhibit the VKORC1 enzymeMyocardial InfarctionTherapyClinicalAtrialClopidogrelCYP2C9Gene polymorphismsEffect on warfarinPrevent blood clotsRisk of blood clotsStrokeVitaminGenesVariabilityMedicationSodiumPradaxaPatient's warfarinDosageHeparinAnalysesTabletsBloodPrescribe warfarinAffect warfarin doseTherapeutic warfarin doseGeneticVKORC1DOACsMedicationsCommonlyDoses of warfarinPeople with warfarinPatients on warfarinTreatment with warfarinAlternative to warfarinDrugsBleedingHemorrhageInternational norma
Anticoagulant21
  • Warfarin is an anticoagulant, which means that it thins the blood, preventing blood clots from forming. (medlineplus.gov)
  • If people with warfarin resistance require anticoagulant therapy and take the average warfarin dose, they will remain at risk of developing a potentially harmful blood clot. (medlineplus.gov)
  • Warfarin is a commonly prescribed oral anticoagulant, with 30 million prescriptions written per year in the United States alone. (ahrq.gov)
  • They might also consider using a newer type of drug, a non-vitamin K antagonist oral anticoagulant (NOAC), which is easier to manage and has fewer interactions with food and drugs compared to warfarin. (uspharmacist.com)
  • Warfarin, the commonly employed anticoagulant apparently restricts blood clot formation. (healthjockey.com)
  • Its investigators say the findings could have implications for the decision to switch warfarin-treated patients to a direct oral anticoagulant (DOAC). (tctmd.com)
  • Warfarin is a widely used oral anticoagulant worldwide. (aisnet.org)
  • Many of those diseases require treatment with warfarin, an anticoagulant that has a large high inter and intra-variability in the required doses. (medsci.org)
  • Warfarin, another anticoagulant taken in tablet form, does cross the placenta and may harm the unborn child (tetrogenic). (richardvigilantebooks.com)
  • Warfarin (also known under the brand names of Coumadin®, Jantoven®, Marevan®, and Waran®) is an anticoagulant medication that is administered orally or, very rarely, by injection. (loinc.org)
  • Warfarin is the main oral anticoagulant used in the UK. (churchsurgery.com)
  • Although there are now 3 new anticoagulants that don't require regular monitoring - rivaroxaban, apixaban and dabigatran - most people who need an anticoagulant will be prescribed warfarin. (churchsurgery.com)
  • Ask your GP or staff at your local anticoagulant clinic if you're not sure what to do about a missed dose of warfarin. (churchsurgery.com)
  • Use of direct oral anticoagulant drugs (DOACs) appears to be just as effective as warfarin in preventing future thrombotic events in patients with cerebral venous thrombosis (CVT) stroke, and are less likely to result in major bleeding, a retrospective study suggests. (medscape.com)
  • This real-world data supports use of direct oral anticoagulant drugs as a reasonable alternative to warfarin in patients with cerebral venous thrombosis," Bakradze concluded. (medscape.com)
  • The primary predictor in the study was oral anticoagulant type (DOAC vs warfarin). (medscape.com)
  • Patients on warfarin might need to reduce their anticoagulant dose or monitor their prothrombin time more closely while taking atovaquone-proguanil, although coadministration of these drugs is not contraindicated. (cdc.gov)
  • Warfarin is an anticoagulant and blood thinner used to treat thrombotic disorders. (cdc.gov)
  • With turnaround representatives now readily available for Pradaxa and warfarin, we have actually been asked if FDA must continue to enable marketing of anticoagulant drugs that do not have a turnaround representative. (daxos.org)
  • Warfarin and other Coumarin derivatives act by inhibiting the synthesis of vitamin K dependent clotting factors , which include Factors II, VII, IX and X (FIG. 1), and the anticoagulant proteins C and S: The reverting agents act by restoring the synthesis of vitamin K dependent clotting factors or by providing vitamin K dependent clotting factors. (iemig.it)
  • Most patients (61.9%) continued on warfarin during the study period, 9.5% switched to a Directly Acting Oral Anticoagulant, 9.5% stopped Warfarin due to bleeding while on therapeutic INR, 14.2% switched to another provider for INR monitoring, 9.5% were lost to follow-up. (bvsalud.org)
Coumadin17
  • Warfarin, marketed as Coumadin by Bristol-Myers Squibb, is used to prevent potentially fatal clots in blood vessels. (genomeweb.com)
  • Recall: Coumadin (warfarin sodium) Crystalline 5 mg Tablets - Tablets May Have Higher than Expected Potency ISSUE: Bristol-Myers Squibb initiated a voluntary recall of one lot of 1,000-count bottles of Coumadin (warfarin sodium) Crystalline 5 mg tablets. (malecare.org)
  • This Actionset is about all blood thinner medicines except warfarin (Coumadin). (stlukesonline.org)
  • Remind patients taking warfarin (Coumadin) that foods high in vitamin K (e.g., lentils, chickpeas, coleslaw, liver, hummus, seaweed, and green tea) can cause the international normalized ratio to drop. (clinicaladvisor.com)
  • Bristol-Myers Squibb announced that the sale and distribution of all strengths of Coumadin (Warfarin Sodium) tablets will be discontinued in the United States, Canada, Latin America, and Saudi Arabia, due to an unexpected manufacturing issue. (richardvigilantebooks.com)
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  • Foods Rich in Vitamin K. Particularly for people taking the blood thinner warfarin (Coumadin), vitamin K-rich foods like spinach, brussels sprouts, kale and even green tea can neutralize the drug's efficiency. (daxos.org)
Anticoagulants12
  • This meta-analysis comprised 42,411 patients on novel anticoagulants and 29,272 on warfarin. (medscape.com)
  • Cite this: Novel Anticoagulants vs Warfarin: Latest Analyses - Medscape - Jan 30, 2014. (medscape.com)
  • Discontinue warfarin sodium and consider alternative anticoagulants if necessary. (nih.gov)
  • Moreover, they note, patients with CKD, especially advanced renal dysfunction, were usually excluded from the prospective trials that established warfarin for thromboembolic protection in patients with AF, as well as those supporting the new oral anticoagulants (NOACs). (medscape.com)
  • In a review of 5 clinical trials, non‐vitamin‐K oral anticoagulants were shown to be associated with a lower risk of fatal and disabling, as well as non-disabling, stroke compared to warfarin. (neurologylive.com)
  • Non‐vitamin‐K oral anticoagulants (NOACs) have been observed to be associated with a lower risk of both fatal and disabling, as well as non-disabling, stroke compared to warfarin. (neurologylive.com)
  • Effect of non‐vitamin‐K oral anticoagulants on stroke severity compared to warfarin: a meta‐analysis of randomized controlled trials. (neurologylive.com)
  • AF patients initiating warfarin therapy had a 71% increased risk for ischemic stroke within the first 30 days of therapy, compared with those on no anticoagulants. (jwatch.org)
  • When you start taking warfarin, you may be given a yellow booklet about anticoagulants, which explains your treatment. (churchsurgery.com)
  • Comparing total medical expenditure between patients receiving direct oral anticoagulants vs warfarin for the treatment of atrial fibrillation: evidence from VA-Medicare dual enrollees. (bvsalud.org)
  • Direct oral anticoagulants (DOACs) are an alternative to warfarin for treatment of atrial fibrillation (AF). (bvsalud.org)
  • When the diagnosis has been confirmed, this is overlapped with warfarin, or treatment may be switched to one of the other newer oral anticoagulants (apixaban, rivaroxaban or dabigatran). (hospitalhealthcare.com)
Take warfarin6
  • There are some extra steps you have to take if you take warfarin. (stlukesonline.org)
  • Commenting for TCTMD, Alan Go, MD (Kaiser Permanente Division of Research, Oakland, CA), said the study findings are not surprising and support the idea "that if you're going to take warfarin or a vitamin K antagonist, you need to stay in good control for it to be effective. (tctmd.com)
  • Why do you need to take warfarin at 6pm? (richardvigilantebooks.com)
  • It's very important that you take warfarin exactly as directed. (churchsurgery.com)
  • How long you'll need to take warfarin for will depend on the condition for which it's been prescribed. (churchsurgery.com)
  • If you usually take warfarin in the morning and forget to take it at your normal time, take it as soon as you remember and continue as normal. (churchsurgery.com)
Anticoagulation with warfarin4
  • He was on long-standing anticoagulation with warfarin for his atrial fibrillation, and this medication was continued while he was in the hospital. (ahrq.gov)
  • These data support other reports that suggest that patients who undergo pre-injury anticoagulation with warfarin are at increased risk of death after trauma. (healthjockey.com)
  • Antiplatelet therapy and anticoagulation with warfarin can be indicated to prevent recurrent systemic thromboembolism. (medscape.com)
  • Anticoagulation with warfarin is under-prescribed in eligible patients. (bvsalud.org)
Dabigatran7
  • RE-MEDY randomized 1,430 patients to dabigatran and 1,426 to warfarin. (drugtopics.com)
  • Of note, there were significantly more cases of acute coronary syndrome (ACS) in the dabigatran group (0.9%) vs 0.2% for those who took warfarin ( P =0.02). (drugtopics.com)
  • In that study, there was an increased risk of myocardial infarction in patients treated with dabigatran compared with warfarin. (drugtopics.com)
  • Extended use of dabigatran, warfarin, or placebo in venous thromboembolism. (drugtopics.com)
  • The DOACs - apixaban (Eliquis®), dabigatran (Pradaxa®), edoxaban (Savaysa®), and rivaroxaban (Xarelto®) - are given in fixed doses, do not require INR monitoring, have few medication interactions, do not require dietary restrictions, and carry a lower risk of bleeding compared with warfarin, Dr. Bartholomew says. (richardvigilantebooks.com)
  • A small, randomized trial ( RESPECT-CVT ) showed no significant difference in efficacy and safety outcomes between dabigatran and warfarin in patients with cerebral venous thrombosis, but with only 120 patients, this trial was too small for definite answers to this question. (medscape.com)
  • The more recent medications are Pradaxa (dabigatran), Xarelto (rivaroxaban), Eliquis (apixaban), and most just recently Savaysa (edoxaban)- which work by avoiding pooled blood in the heart from clotting Unlike warfarin, the more recent drugs are much safer and much easier for clients to utilize. (daxos.org)
DOAC7
  • DOAC s are often preferred over Warfarin for most Anticoagulation indications (esp. (fpnotebook.com)
  • DOAC-related major bleeds are associated with favorable outcomes compared to warfarin in clinical trials and routine practice. (ices.on.ca)
  • Baseline characteristics between DOAC and warfarin groups were similar. (ices.on.ca)
  • Conclusions - Prior to introduction of DOAC-specific reversal agents, resource utilization and medical costs were comparable between DOAC- and warfarin-associated major bleeds, despite marginally higher blood product costs incurred by the former. (ices.on.ca)
  • But Go didn't agree with the conclusion that a stable TTR should not necessarily dissuade physicians from switching a patient from warfarin to a DOAC. (tctmd.com)
  • The mean age of the patients included was 44.8 years, 64.7% were women, 33% received DOAC only, 51.8% received warfarin only, and 15.1% received both treatments at different times. (medscape.com)
  • We examined patients with an incident diagnosis for AF and initiated warfarin or DOAC treatment between 2012 and 2015. (bvsalud.org)
Venous Thromboembolism1
  • She noted that although randomized trials and current guidelines indicate that DOACs are a preferred alternative to warfarin for the treatment of patients with venous thromboembolism, there are limited data on their use in patients with CVT. (medscape.com)
Needed to inhibit the VKORC1 enzyme2
  • Individuals develop warfarin sensitivity because a lower warfarin dose is needed to inhibit the VKORC1 enzyme, as there is less functional enzyme that needs to be suppressed. (medlineplus.gov)
  • This reduction in warfarin binding causes incomplete warfarin resistance and results in a higher dose of warfarin needed to inhibit the VKORC1 enzyme and stop the clotting process. (medlineplus.gov)
Myocardial Infarction1
  • They included one episode of cardiac tamponade and one myocardial infarction in the heparin-bridging group and one stroke and one transient ischaemic attack in the warfarin group. (bmj.com)
Therapy20
  • Drugs, dietary changes, and other factors affect INR levels achieved with warfarin sodium therapy. (nih.gov)
  • Discontinue warfarin sodium and consider alternative anticoagulation therapy. (nih.gov)
  • Heparin-induced thrombocytopenia (HIT): Initial therapy with warfarin sodium in HIT has resulted in cases of amputation and death. (nih.gov)
  • The current data, write Winkelmayer and Turakhia, "support the use and continuation of warfarin therapy among patients with CKD with excellent INR control. (medscape.com)
  • This is why patients are closely monitored especially when they begin warfarin therapy. (clinicaltrials.gov)
  • In the BRUISE-CONTROL study, 681 patients taking warfarin and requiring device implantation were randomly assigned in a 1:1 ratio to continued warfarin treatment or to bridging therapy with heparin. (bmj.com)
  • The trial was terminated early after a prespecified interim analysis, which strongly favoured continuation of warfarin therapy. (bmj.com)
  • In this large multi-center prospective study, as compared with bridging therapy with heparin, a strategy of continued warfarin treatment at the time of pacemaker or ICD implantation significantly reduced the incidence of pocket haematomas. (bmj.com)
  • For warfarin therapy to be effective, patients need to maintain a high time in therapeutic range. (tctmd.com)
  • Our analysis suggests that there may be a greater reduction in stroke severity in those appropriately prescribed NOAC therapy compared to warfarin. (neurologylive.com)
  • CYP2A6 rs1801272 SNP was found to be associated with warfarin sensitivity during the initiation phase of therapy and with warfarin responsiveness and INR measurement during the stabilization phase of therapy. (medsci.org)
  • Our aim was to examine outcomes after warfarin therapy initiation, relative to no warfarin use, following incident AF in a large cohort of hemodialysis patients who had comprehensive prescription drug coverage through Medicare Part D. (ajkd.org)
  • Warfarin therapy initiation, identified by a filled prescription within 30 days of the AF event. (ajkd.org)
  • ANSWER: If possible, warfarin therapy should be avoided during pregnancy. (richardvigilantebooks.com)
  • If warfarin therapy is essential, it should be avoided at least during the first trimester (because of teratogenicity) and from about 2 to 4 weeks before delivery to reduce risk of hemorrhagic complications. (richardvigilantebooks.com)
  • Liver injury due to warfarin therapy is rare, but clinically apparent acute liver injury attributable to it has been reported. (richardvigilantebooks.com)
  • The aim of warfarin therapy is to decrease the blood's tendency to clot, but not stop it clotting completely. (churchsurgery.com)
  • Patient satisfaction toward the counseling service was rated as good in the following areas: general satisfaction, interpersonal manner of pharmacist providing counseling, communication, and accessibility to the service.Conclusion: Pharmacist counseling through verbal and written reinforcement could improve patients' knowledge of warfarin therapy, and may enable the patients to identify complications related to the therapy, particularly minor bleedings. (who.int)
  • Pharmacist counseling may not be the only factor that could affect the control of INRs and complications related to warfarin therapy. (who.int)
  • 25. Newall F, Johnston L, Monagle P. A survey of pediatric cardiology nurses' understanding of warfarin therapy. (bvsalud.org)
Clinical8
  • Warfarin prescribers should consider these data in the overall risk-benefit analysis when opting to prescribe warfarin, and these data provide further rationale for discontinuing warfarin when the clinical evidence no longer supports its use. (healthjockey.com)
  • Seven clinical trials were analyzed, including 3 studies using warfarin and 4 surrogate drugs. (cranberryinstitute.org)
  • Randomized clinical trials and surrogate markers found no evidence to support the interaction between cranberry juice and warfarin. (cranberryinstitute.org)
  • Many patients with good INR control on warfarin won't maintain a high time in therapeutic range (TTR) even a year later, making past TTR a poor predictor of clinical outcomes in patients with A-fib, a new study shows. (tctmd.com)
  • These results support clinical equipoise regarding the use of warfarin in hemodialysis patients and underscore the need for randomized trials to fill this evidence gap. (ajkd.org)
  • The need for a TMDD pharmacokinetic model and the demonstration of genotyped-dependent drug interactions may explain the extensive variability in dose-response relationships that are seen in the clinical dose adjustments of warfarin. (aspetjournals.org)
  • Clinical and genetic determinants of warfarin pharmacokinetics and pha" by Inna Y. Gong, Ute I. Schwarz et al. (uwo.ca)
  • In a clinical trial that randomly assigned 216 patients with warfarin-associated bleeding to receive PCC or FFP with intravenous vitamin K, PCC was found to be at least as effective as FFP with similar hemostasis (72% vs 65%) and similar length of hospital stay (median 4.5 vs 4.2 days). (iemig.it)
Atrial6
  • To investigate the incidence of mitral valve calcium (MVC), mitral annular calcium (MAC) and aortic valve calcium (AVC) in patients with non-valvular atrial fibrillation (AF) treated with warfarin vs. no warfarin. (nih.gov)
  • STOCKHOLM, SWEDEN - Regardless of severity of renal dysfunction, the one-year risk of death, MI, or stroke went down significantly for patients hospitalized with acute MI and atrial fibrillation (AF) who were prescribed warfarin at discharge, compared with those not given warfarin, in an observational study based on the long-running SWEDEHEART registry [ 1 ] . (medscape.com)
  • Although warfarin is indicated to prevent ischemic strokes in most patients with atrial fibrillation (AF), evidence supporting its use in hemodialysis patients is limited. (ajkd.org)
  • Patients with atrial fibrillation seem to be at increased risk for ischemic stroke when starting warfarin prophylaxis, according to a case-control study in the European Heart Journal . (jwatch.org)
  • Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. (loinc.org)
  • The study consisted of interviews with 100 atrial fibrillation patients to determine their understanding of potential interactions between supplements and medications such as Warfarin. (healthandwellnesstimes.com)
Clopidogrel2
  • You are taking blood thinning drugs (e.g. warfarin, aspirin, Clopidogrel). (singhealth.com.sg)
  • Avoid using herbs to treat high platelet counts if you take anti-clotting medications, such as warfarin or clopidogrel. (healthfully.com)
CYP2C918
  • Certain common changes (polymorphisms) in the CYP2C9 and VKORC1 genes account for most of the variation in warfarin metabolism due to genetic factors. (medlineplus.gov)
  • Several CYP2C9 gene polymorphisms decrease the activity of the CYP2C9 enzyme and slow the body's metabolism of warfarin. (medlineplus.gov)
  • While changes in specific genes, particularly CYP2C9 and VKORC1 , affect how the body reacts to warfarin, many other factors, including sex, age, weight, diet, and other medications, also play a role in the body's interaction with this drug. (medlineplus.gov)
  • Azzam H, Elwakeel H, Awad I, El-Farahaty R, El-Gilany AH, El-Sharawy S. VKORC1 and CYP2C9 genotypes in Egyptian patients with warfarin resistance. (medlineplus.gov)
  • Polymorphisms of CYP2C9, VKORC1, MDR1, APOE and UGT1A1 genes and the therapeutic warfarin dose in Brazilian patients with thrombosis: a prospective cohort study. (medlineplus.gov)
  • Variability to warfarin response has been linked to mutations in two genes: CYP2C9 and VKORC1. (genomeweb.com)
  • Further, his group performed a study with cranberry juice and flurbiprofen (which is metabolized by the same enzyme that plays a major role in warfarin metabolism, the hepatic CYP2C9 enzyme) and found no effect of cranberry juice on the metabolism of this medication. (clotcare.com)
  • The adequate warfarin dosage for a patient is determined by three genes: VKORC1, CYP2C9, and CYP4F2. (expertsvar.se)
  • What is known and Objectives: Testing for cytochrome P450‐2C9 (CYP2C9) and vitamin K epoxide reductase complex subunit 1 (VKORC1) variant alleles is recommended by the FDA for dosing of warfarin. (semanticscholar.org)
  • We therefore studied the impact of genetic polymorphisms of CYP2C9 and VKORC1 on warfarin dose requirement in Malaysia. (semanticscholar.org)
  • Effect of genetic variants, especially CYP2C9 and VKORC1, on the pharmacology of warfarin. (semanticscholar.org)
  • This study showed that in the heart valve replacement patients considering VKORC1 and CYP2C9 polymorphisms beside demographic characteristics such as age will be helpful in pre-treatment dosing of warfarin which in turn reduces the complications associated with inappropriate warFarin dosing. (semanticscholar.org)
  • CL f of 4'- 8- and 10-OH-S-warfarin increase in the presence of rifampin: 260%, 127% and 355%), which potentially explains the CYP2C9 genotype-dependent DDIs exhibited by S-warfarin, when warfarin is administrated together with fluconazole or rifampin. (aspetjournals.org)
  • Additionally, for subjects with CYP2C9 *2 and *3 variants, a model-based analysis of warfarin metabolite profiles in subjects with various CYP2C9 genotypes demonstrates CYP2C9 mediated elimination is less important and non-CYP2C9 mediated elimination is more important, compared with subjects without these variants. (aspetjournals.org)
  • To our knowledge, this is so far one of the most comprehensive population-based PK analyses of warfarin metabolites in subjects with various CYP2C9 genotypes under different co-medications. (aspetjournals.org)
  • As an example, warfarin is the most cited therapeutic in relation to the genes CYP2C9 and VKORC1 . (cdc.gov)
  • The CYP2C9 and VKORC1 genes play a key role in the metabolism of warfarin. (cdc.gov)
  • Many studies have found evidence that variants in CYP2C9 and VKORC1 can impact the efficacy of warfarin in individual patients. (cdc.gov)
Gene polymorphisms2
  • Certain VKORC1 gene polymorphisms lead to the formation of a VKORC1 enzyme with a decreased ability to bind to warfarin. (medlineplus.gov)
  • Warfarin dose/week was not influenced by each of the MDR1 C3435T, EPHX1 H139R, and PZ A-13G gene polymorphisms when examined separately, but when these single nucleotide polymorphisms (SNPs) were combined, MDR 1 TT/EPHX1 RH,RR/PZ AA subjects showed statistically significant increase in warfarindose/week. (semanticscholar.org)
Effect on warfarin2
  • Polymorphisms in other genes, some of which have not been identified, have a smaller effect on warfarin metabolism. (medlineplus.gov)
  • There is a need to study genotype frequency distribution and their effect on warfarin dose variability among different populations due to diversity in outcome, and the need for exploration of more genetic and nongenetic factors in Pakistani population is stressed. (semanticscholar.org)
Prevent blood clots3
  • Warfarin is a commonly used blood thinner to treat and prevent blood clots. (clinicaltrials.gov)
  • Warfarin is an anti-coagulant that is commonly used to prevent blood clots and embolism. (phys.org)
  • Warfarin is a commonly prescribed drug used to prevent blood clots from forming and given to people with certain types of irregular heartbeat, those with prosthetic heart valves, and those who have suffered a heart attack. (healthandwellnesstimes.com)
Risk of blood clots1
  • It is important to take the right dose of warfarin because too much can increase the risk of bleeding and too little can increase the risk of blood clots. (clinicaltrials.gov)
Stroke12
  • The event rate for stroke and systemic embolism in the warfarin group was 1.5% per year. (medscape.com)
  • In multivariate analysis, those who went on warfarin, compared with the rest, showed a significantly reduced hazard ratio for the composite of death, MI readmission, or ischemic stroke at one year, independently of eGFR. (medscape.com)
  • This study suggests that optimally prescribed NOACs are associated with a lower risk of fatal, disabling or non-disabling stroke compared to warfarin," Canavan and colleagues wrote. (neurologylive.com)
  • Further study is required to identify if this reduction in stroke severity in NOACs compared to warfarin is seen in ischemic stroke populations. (neurologylive.com)
  • In 4 of the trials, NOACs were evaluated how they are usually prescribed, with acute stroke reported in 1403 (1.86%) participants in total, of which 787 (1.04%) were in the NOAC group and 616 (0.82%) in the warfarin group. (neurologylive.com)
  • In the warfarin group, 367 (0.49%) experienced fatal or disabling, 249 (0.33%) had non-disabling stroke. (neurologylive.com)
  • Although we speculated that NOACs may have a lesser effect on severe stroke, compared to warfarin, our findings refuted our hypothesis," Canavan and colleagues noted. (neurologylive.com)
  • In hemodialysis patients with incident AF, warfarin use was marginally associated with reduced risk of ischemic stroke, and there was a signal toward reduced mortality in as-treated analyses. (ajkd.org)
  • The study was undertaken after trials of both apixaban and rivaroxaban noted increased stroke risks among patients transitioning to open-label warfarin. (jwatch.org)
  • However, the warfarin group had half the stroke risk after 30 days. (jwatch.org)
  • However, for patients at risk for stroke in AFib, Eliquis is the only NOAC that is better than warfarin in the prevention of stroke and results in fewer bleeding complications. (richardvigilantebooks.com)
  • Warfarin and herbal and dietary supplements "compete" in the liver and this competition changes the way the blood thinner works - either intensifying its active ingredients, thereby increasing the risk of bleeding, or by reducing its effectiveness, increasing the risk of stroke. (healthandwellnesstimes.com)
Vitamin6
  • Warfarin affects the synthesis and function of the matrix Gla-protein, a vitamin K-dependent protein, which is a potent inhibitor of tissue calcification. (nih.gov)
  • Grapefruit, Seville or tangelo oranges and grapefruit juice Although these fruits and their juices are not high in vitamin K, they can affect how warfarin works in other ways. (richardvigilantebooks.com)
  • It had a lot of good advice that hasn't changed much over the years so I was surprised to receive a 'news' item that warned that Warfarin when taken with vitamin E and large doses of vitamin C can decrease effect of the drug. (healthandwellnesstimes.com)
  • Warfarin is affected by large doses of vitamin E, vitamin C, bioflavanoids and calcium and a large intake of fats or oils. (healthandwellnesstimes.com)
  • Warfarin blocks one of the enzymes (proteins) that uses vitamin K to produce clotting factors. (churchsurgery.com)
  • Vitamin K is indicated for warfarin reversal if (TAB. (iemig.it)
Genes8
  • Many genes are involved in the metabolism of warfarin and in determining the drug's effects in the body. (medlineplus.gov)
  • Additionally, people who have more than one polymorphism in a gene or polymorphisms in multiple genes associated with warfarin sensitivity have a lower tolerance for the drug's effect or take even longer to clear the drug from their body. (medlineplus.gov)
  • Additionally, people who have more than one polymorphism in a gene or polymorphisms in multiple genes associated with warfarin resistance have a higher tolerance for the drug's effect or are able to process the drug more quickly. (medlineplus.gov)
  • Certain genes have also been found to affect warfarin dose. (clinicaltrials.gov)
  • We have previously studied selected genes that can affect warfarin treatment. (expertsvar.se)
  • She also says that this is the first truly large warfarin study in which all genes were reviewed at the same time. (expertsvar.se)
  • But now that researchers have managed to identify which genes underlie this variation, it will be possible to predict different patients' needs for warfarin more precisely, rendering treatment safer. (expertsvar.se)
  • The selected genes and their polymorphisms are involved in many GWAS associated with cardiovascular disease and variability in warfarin treatment. (medsci.org)
Variability1
  • The aim of this study is to find if there are any associations between rs2108622 of CYP4F2 , rs7412 and rs405509 of ApoE , and rs1801272 of CYP2A6 , and CVD and warfarin dose variability. (medsci.org)
Medication5
  • While it is unclear how many of these events are due to warfarin sensitivity, the most common sign is excessive internal bleeding, which often occurs when individuals with warfarin sensitivity are given too much of the medication. (medlineplus.gov)
  • patients in whom warfarin is held (often a temptation of inpatient physicians borne out of a concern for excessive anticoagulation) often experience drops in their INR values to dangerously low levels and are at risk for thromboembolic events until the medication is restarted. (ahrq.gov)
  • Women living alone often have better relationships with children or a broader network of people who could help them manage a demanding medication like warfarin. (uspharmacist.com)
  • Once this has been received we can then provide education on Warfarin medication, advice on INR blood test and dose advice to patients. (sath.nhs.uk)
  • History - It is important for you to inform your doctor about your past medical and surgical history, your current regular medication especially blood thinning agents, such as aspirin, warfarin and drug allergy. (singhealth.com.sg)
Sodium7
  • These highlights do not include all the information needed to use WARFARIN SODIUM TABLETS safely and effectively. (nih.gov)
  • See full prescribing information for WARFARIN SODIUM TABLETS. (nih.gov)
  • Warfarin sodium can cause major or fatal bleeding. (nih.gov)
  • Warfarin sodium tablets have no direct effect on an established thrombus, nor does it reverse ischemic tissue damage. (nih.gov)
  • Discontinue warfarin sodium if such emboli occur. (nih.gov)
  • Warfarin sodium may be considered after platelet count has normalized. (nih.gov)
  • Most common adverse reactions to warfarin sodium are fatal and nonfatal hemorrhage from any tissue or organ. (nih.gov)
Pradaxa1
  • These over the counter pain relievers - called nonsteroidal anti-inflammatory drugs ( NSAIDs )- consist of such drugs as Advil , Aleve , Bufferin , Excedrin , Motrin and Nuprin , in addition to aspirin Clients who utilize blood slimmers such as warfarin , Eliquis, Xarelto or Pradaxa must not take them, the scientists stated. (daxos.org)
Patient's warfarin2
  • These factors have been used to better predict a patient's warfarin dose requirement. (clinicaltrials.gov)
  • This study aims to identify new genetic variation that affects warfarin dosing in Hispanic and Latino populations and try to better predict a Hispanic or Latino patient's warfarin dose requirement. (clinicaltrials.gov)
Dosage2
  • Is there a role for MDR1, EPHX1 and protein Z gene variants in modulation of warfarin dosage? (medlineplus.gov)
  • The dosage of warfarin was adjusted to maintain the International Normalized Ratio between 2.0 and 3.0. (aafp.org)
Heparin1
Analyses1
  • SNPs and other variables associated with warfarin dose will be assessed in univariate analyses and entered into stepwise linear regression to determine the adjusted association with dose requirements using R2. (clinicaltrials.gov)
Tablets1
  • It is important to have both 3mg and 1mg strength tablets of warfarin on repeat prescription as you may have to use both strength tablets to make up your daily dose. (sath.nhs.uk)
Blood17
  • In some people with warfarin resistance, their blood-clotting process does not react effectively to the drug. (medlineplus.gov)
  • The issue often is that continuous blood monitoring with international normalized ratio (INR) measurements is required for warfarin to be safe and effective, according to the report. (uspharmacist.com)
  • Warfarin is one of the drugs commonly prescribed to prevent these dangerous blood clots from ever forming. (malecare.org)
  • Information about the use of warfarin for treating and preventing blood clots. (kidshealth.org.nz)
  • Patients vary in their sensitivity to warfarin, which makes treatment initially a risky balancing act between bleeding and blood clots. (expertsvar.se)
  • You are likely to have been prescribed Warfarin or Sinthrome to help reduce the risk of harmful blood clots forming in your blood vessels. (sath.nhs.uk)
  • The aim is to give just the right amount of Warfarin, so the blood takes longer to clot but does not stop clotting altogether. (sath.nhs.uk)
  • Your Warfarin treatment will be monitored by having regular blood tests called an INR. (sath.nhs.uk)
  • Dose advice provided is based on the results of patient's latest INR blood test and it is important that the advised dose of Warfarin is followed. (sath.nhs.uk)
  • At the start of your Warfarin treatment blood testing for your INR will be frequent. (sath.nhs.uk)
  • We abstracted bleeds involving DOACs or warfarin and linked them to administrative databases to capture length of hospital stay, blood product use, procedural interventions, intensive care unit (ICU) utilization and related direct medical costs. (ices.on.ca)
  • Blood product costs were higher for DOACs (all comparisons DOACs vs. warfarin, $1456 vs. $1109, mean difference $347, 95% CI $185 to $509), but length of stay and ICU use were similar. (ices.on.ca)
  • What are the side effects of warfarin?Severe bleeding, including heavier than normal menstrual bleeding.Red or brown urine.Black or bloody stool.Severe headache or stomach pain.Joint pain, discomfort or swelling, especially after an injury.Vomiting of blood or material that looks like coffee grounds.Coughing up blood. (richardvigilantebooks.com)
  • Is there a better blood thinner than warfarin? (richardvigilantebooks.com)
  • The higher the number the slower your blood clots and it is imperative that your INR is monitored when using Warfarin. (travelpharm.com)
  • Similarly, the blood-clotting drug warfarin seems to relieve symptoms of schizophrenia. (livescience.com)
  • For many people, using warfarin can be difficult because of the need for frequent tests to see if the blood is clotting properly, and having to adjust the dose of the drug if it is not. (hospitalhealthcare.com)
Prescribe warfarin1
  • When clinicians prescribe warfarin, they have to consider different factors such as patient's age, body size, diet, and other medications that can interact with warfarin. (clinicaltrials.gov)
Affect warfarin dose1
  • Researchers from the Ohio State University have developed a rapid, multiplexed genotyping method to identify the single nucleotide polymorphisms (SNPs) that affect warfarin dose. (phys.org)
Therapeutic warfarin dose1
  • Linear regression will be used to test association of SNPs with therapeutic warfarin dose using the algorithms derived by the International Warfarin Pharmacogenomics Consortium. (clinicaltrials.gov)
Genetic4
  • In September, Nanosphere became the first firm to receive clearance for a genetic test for warfarin sensitivity. (genomeweb.com)
  • Certain genetic variations, SNPs, also affect warfarin sensitivity and metabolism. (phys.org)
  • We will continue to look for genetic variants that influence the risk of bleeding, which can be a reaction to warfarin treatment, though a rare one. (expertsvar.se)
  • A genetic polymorphism is associated with the variation of interindividual warfarin dose requirement in different ethnic populations. (semanticscholar.org)
VKORC13
  • Warfarin prevents (inhibits) the action of the VKORC1 enzyme and slows the activation of clotting proteins and clot formation. (medlineplus.gov)
  • Warfarin prevents (inhibits) the action of the VKORC1 enzyme by binding to the enzyme and preventing it from binding to and activating the clotting proteins, stopping clot formation. (medlineplus.gov)
  • If the VKORC1 enzyme cannot bind to any warfarin, the result is complete warfarin resistance. (medlineplus.gov)
DOACs4
  • When examined separately, the occurrence of ICH per 100 patient-years was much lower among the patients prescribed DOACs than those who were prescribed warfarin (1.52 vs 3.51), whereas the occurrence of major bleeding outside the brain was similar (0.91 vs 1.15). (medscape.com)
  • To compare total downstream medical expenditure between AF patients treated with warfarin and DOACs dually enrolled in the Veterans Affairs (VA) Healthcare System and fee -for-service Medicare . (bvsalud.org)
  • Compared with patients receiving DOACs, adjusted 3-year expenditure was $25,688 (P patients receiving warfarin . (bvsalud.org)
  • VA patients with AF initiating warfarin incurred markedly higher downstream expenditure compared with similar patients receiving DOACs. (bvsalud.org)
Medications3
  • There were no changes made to any of the medications he was taking before the hospitalization, including the warfarin. (ahrq.gov)
  • 2 ) Unfortunately, warfarin has unpredictable, weight-independent therapeutic effects due to complexities of metabolism, diet, and interaction with other medications. (ahrq.gov)
  • However, warfarin dosing is complicated by the fact that it interacts with many commonly used medications and even chemicals in some foods. (phys.org)
Commonly1
  • 3 ) As a result, patients must have regular measurements of their international normalized ratio (INR) and frequent adjustments of warfarin dosing to keep their INR in a therapeutic range, most commonly between 2.0 and 3.0. (ahrq.gov)
Doses of warfarin3
  • A group led by Dr. Haifeng M. Wu of the Ohio State University has developed a new rapid method to genotype SNPs that will help clinicians to choose appropriate doses of warfarin for individual patients. (phys.org)
  • Yang et al suggest that "on-site application of this method in hospital laboratories will greatly help clinicians to determine appropriate doses of warfarin to treat patients with thromboembolic disorders. (phys.org)
  • Withholding 1 or more doses of warfarin is usually sufficient if INR is excessively elevated or if minor bleeding occurs. (richardvigilantebooks.com)
People with warfarin3
  • Many people with warfarin sensitivity take longer than normal to break down (metabolize) warfarin. (medlineplus.gov)
  • Other people with warfarin sensitivity do not need as much drug to prevent clots because their clot-forming process is naturally slower than average and can be stopped by low warfarin doses. (medlineplus.gov)
  • If people with warfarin sensitivity take the average dose (or more) of warfarin, they are at risk of an overdose, which can cause abnormal bleeding in the brain, gastrointestinal tract, or other tissues, and may lead to serious health problems or death. (medlineplus.gov)
Patients on warfarin2
  • Understand best practices for safe discharge of patients on warfarin. (ahrq.gov)
  • The excessively high INR and elevated bleeding risk in this case do, however, highlight several important aspects of safely discharging patients on warfarin. (ahrq.gov)
Treatment with warfarin1
  • You're at greatest risk of bleeding in the first few weeks of starting treatment with warfarin and when you're unwell. (churchsurgery.com)
Alternative to warfarin1
Drugs3
  • In addition, the effectiveness of Warfarin is impacted by other drugs - particularly antifungals, barbiturates and beta blockers which all decrease the drugs effectiveness. (healthandwellnesstimes.com)
  • Glipizide is likely to react with drugs like chloramphenicol, NSAIDs and warfarin and certain sulfa drugs. (petcarerx.com)
  • warfarin dosing) have been costly to achieve and will not scale to all diseases and all drugs. (blogspot.com)
Bleeding3
  • Taking everything together, the high dose of edoxaban is almost superior to warfarin and has a favorable bleeding rate. (medscape.com)
  • The low dose is almost inferior to warfarin and has a very favorable bleeding rate. (medscape.com)
  • Bleeding is the main side effect associated with warfarin, as it slows down the blood's normal clotting ability. (churchsurgery.com)
Hemorrhage2
  • Those employing warfarin appeared more likely to be admitted with intracranial hemorrhage. (healthjockey.com)
  • In the context of intracranial hemorrhage (ICH), prior meta‐analysis has suggested that NOAC anticoagulation can lower the risk of compared to warfarin. (neurologylive.com)
International norma1
  • Of note, his international normalized ratio (INR) was 2.4 at the time of discharge so he was appropriately anticoagulated on the warfarin. (ahrq.gov)
DailyMed - FLOMAX- tamsulosin hydrochloride capsule
DailyMed - FLOMAX- tamsulosin hydrochloride capsule (dailymed.nlm.nih.gov)
UGT1A1 gene: MedlinePlus Genetics
UGT1A1 gene: MedlinePlus Genetics (medlineplus.gov)
Mitral Stenosis Medication: Antiarrhythmics, Calcium channel blockers, Anticoagulants, Beta-adrenergic blockers, Antibiotics,...
Mitral Stenosis Medication: Antiarrhythmics, Calcium channel blockers, Anticoagulants, Beta-adrenergic blockers, Antibiotics,... (medscape.com)
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Heart Failure Medication: Beta-Blockers, Alpha Activity, Beta-Blockers, Beta-1 Selective, ACE Inhibitors, ARBs, Inotropic... (medscape.com)
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Moyamoya Disease Medication: Anticoagulants, Hematologic, Antiplatelet agents (medscape.com)
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Pulmonary Arterial Hypertension Medication: Calcium Channel Blockers, Prostacyclin Analogs, PAH, Prostacyclin Agonists,... (medscape.com)
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Cheney's CVD; Warfarin Use; HF Readmissions; Flu Vaccine & CVD (medscape.com)
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Case Definitions for Chemical Poisoning (cdc.gov)
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Atrial Fibrillation Medication: Calcium Channel blockers, Beta-adrenergic Receptor Blockers, Cardiac glycosides,... (emedicine.medscape.com)
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Oxandrolone and warfarin (apps.who.int)
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Atherosclerotic Disease of the Carotid Artery Medication: Antiplatelet Agents, Cardiovascular, Anticoagulants, Hematologic,... (emedicine.medscape.com)
(emedicine.medscape.com)
Novel Anticoagulants vs Warfarin: Latest Analyses
Novel Anticoagulants vs Warfarin: Latest Analyses (medscape.com)
Pharmacogenomic Warfarin Dosing: Worth the Cost?
Pharmacogenomic Warfarin Dosing: Worth the Cost? (medscape.com)
Reversal Agents for DOACs: When Should You Use Them?
Reversal Agents for DOACs: When Should You Use Them? (medscape.com)
Increased Stroke Risk Caused by Warfarin?
Increased Stroke Risk Caused by Warfarin? (medscape.com)
Browsing by Subject Warfarin
Browsing by Subject "Warfarin" (apps.who.int)
تصفح Journal Articles حسب العنوان
تصفح Journal Articles حسب العنوان (apps.who.int)
Weight-Based Prothrombin Stops Warfarin-Induced Bleeding
Weight-Based Prothrombin Stops Warfarin-Induced Bleeding (medscape.com)
Cor Pulmonale: Introduction to Cor Pulmonale, Etiology and Pathophysiology of Cor Pulmonale, Epidemiology of Cor Pulmonale
Cor Pulmonale: Introduction to Cor Pulmonale, Etiology and Pathophysiology of Cor Pulmonale, Epidemiology of Cor Pulmonale (medscape.com)
Deep Venous Thrombosis (DVT) Treatment & Management: Approach Considerations, General Principles of Anticoagulation, Heparin...
Deep Venous Thrombosis (DVT) Treatment & Management: Approach Considerations, General Principles of Anticoagulation, Heparin... (medscape.com)