The vessels carrying blood away from the capillary beds.
The vein which drains the foot and leg.
A short thick vein formed by union of the superior mesenteric vein and the splenic vein.
Enlarged and tortuous VEINS.
The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins.
Veins which return blood from the intestines; the inferior mesenteric vein empties into the splenic vein, the superior mesenteric vein joins the splenic vein to form the portal vein.
Short thick veins which return blood from the kidneys to the vena cava.
Venous vessels in the umbilical cord. They carry oxygenated, nutrient-rich blood from the mother to the FETUS via the PLACENTA. In humans, there is normally one umbilical vein.
A vein on either side of the body which is formed by the union of the external and internal iliac veins and passes upward to join with its fellow of the opposite side to form the inferior vena cava.
Veins which drain the liver.
The vein formed by the union of the anterior and posterior tibial veins; it courses through the popliteal space and becomes the femoral vein.
The continuation of the axillary vein which follows the subclavian artery and then joins the internal jugular vein to form the brachiocephalic vein.
Vein formed by the union (at the hilus of the spleen) of several small veins from the stomach, pancreas, spleen and mesentery.
Veins draining the cerebrum.
Central retinal vein and its tributaries. It runs a short course within the optic nerve and then leaves and empties into the superior ophthalmic vein or cavernous sinus.
A vein which arises from the right ascending lumbar vein or the vena cava, enters the thorax through the aortic orifice in the diaphragm, and terminates in the superior vena cava.
Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava.
The venous trunk of the upper limb; a continuation of the basilar and brachial veins running from the lower border of the teres major muscle to the outer border of the first rib where it becomes the subclavian vein.
Blockage of the RETINAL VEIN. Those at high risk for this condition include patients with HYPERTENSION; DIABETES MELLITUS; ATHEROSCLEROSIS; and other CARDIOVASCULAR DISEASES.
The formation or presence of a blood clot (THROMBUS) within a vein.
Radiographic visualization or recording of a vein after the injection of contrast medium.
Impaired venous blood flow or venous return (venous stasis), usually caused by inadequate venous valves. Venous insufficiency often occurs in the legs, and is associated with EDEMA and sometimes with VENOUS STASIS ULCERS at the ankle.
The venous trunk which receives blood from the lower extremities and from the pelvic and abdominal organs.
Obstruction of flow in biological or prosthetic vascular grafts.
Ultrasonography applying the Doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the Doppler shift frequency.
Endothelial cells that line venous vessels of the UMBILICAL CORD.
The degree to which BLOOD VESSELS are not blocked or obstructed.
The inferior part of the lower extremity between the KNEE and the ANKLE.
Inflammation of a vein associated with a blood clot (THROMBUS).
Operative procedures for the treatment of vascular disorders.
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
Surgical insertion of BLOOD VESSEL PROSTHESES, or transplanted BLOOD VESSELS, or other biological material to repair injured or diseased blood vessels.
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.
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
The blood pressure in the VEINS. It is usually measured to assess the filling PRESSURE to the HEART VENTRICLE.
The condition of an anatomical structure's being constricted beyond normal dimensions.
The inferior and superior venae cavae.
Ultrasonography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region.
Treatment of varicose veins, hemorrhoids, gastric and esophageal varices, and peptic ulcer hemorrhage by injection or infusion of chemical agents which cause localized thrombosis and eventual fibrosis and obliteration of the vessels.
Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.
Elements of limited time intervals, contributing to particular results or situations.
Surgical shunt allowing direct passage of blood from an artery to a vein. (From Dorland, 28th ed)
Flaps within the VEINS that allow the blood to flow only in one direction. They are usually in the medium size veins that carry blood to the heart against gravity.
The circulation of BLOOD through the LIVER.
The procedure of removing TISSUES, organs, or specimens from DONORS for reuse, such as TRANSPLANTATION.
Abnormal increase of resistance to blood flow within the hepatic PORTAL SYSTEM, frequently seen in LIVER CIRRHOSIS and conditions with obstruction of the PORTAL VEIN.
Application of a ligature to tie a vessel or strangulate a part.
Skin breakdown or ulceration caused by VARICOSE VEINS in which there is too much hydrostatic pressure in the superficial venous system of the leg. Venous hypertension leads to increased pressure in the capillary bed, transudation of fluid and proteins into the interstitial space, altering blood flow and supply of nutrients to the skin and subcutaneous tissues, and eventual ulceration.
A system of vessels in which blood, after passing through one capillary bed, is conveyed through a second set of capillaries before it returns to the systemic circulation. It pertains especially to the hepatic portal system.
Pathological process resulting in the fibrous obstruction of the small- and medium-sized PULMONARY VEINS and PULMONARY HYPERTENSION. Veno-occlusion can arise from fibrous proliferation of the VASCULAR INTIMA and VASCULAR MEDIA; THROMBOSIS; or a combination of both.
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.
Congenital arteriovenous malformation involving the VEIN OF GALEN, a large deep vein at the base of the brain. The rush of arterial blood directly into the vein of Galen, without passing through the CAPILLARIES, can overwhelm the heart and lead to CONGESTIVE HEART FAILURE.
Homopolymer of tetrafluoroethylene. Nonflammable, tough, inert plastic tubing or sheeting; used to line vessels, insulate, protect or lubricate apparatus; also as filter, coating for surgical implants or as prosthetic material. Synonyms: Fluoroflex; Fluoroplast; Ftoroplast; Halon; Polyfene; PTFE; Tetron.
Placement of an intravenous CATHETER in the subclavian, jugular, or other central vein.
DEEP VEIN THROMBOSIS of an upper extremity vein (e.g., AXILLARY VEIN; SUBCLAVIAN VEIN; and JUGULAR VEINS). It is associated with mechanical factors (Upper Extremity Deep Vein Thrombosis, Primary) secondary to other anatomic factors (Upper Extremity Deep Vein Thrombosis, Secondary). Symptoms may include sudden onset of pain, warmth, redness, blueness, and swelling in the arm.
An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.
Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.
The main artery of the thigh, a continuation of the external iliac artery.
The nonstriated involuntary muscle tissue of blood vessels.
Formation and development of a thrombus or blood clot in the blood vessel.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.
Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer.
The venous trunk which returns blood from the head, neck, upper extremities and chest.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
The chambers of the heart, to which the BLOOD returns from the circulation.
The flow of BLOOD through or around an organ or region of the body.
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.
Blocking of the PULMONARY ARTERY or one of its branches by an EMBOLUS.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
Chemical agents injected into blood vessels and lymphatic sinuses to shrink or cause localized THROMBOSIS; FIBROSIS, and obliteration of the vessels. This treatment is applied in a number of conditions such as VARICOSE VEINS; HEMORRHOIDS; GASTRIC VARICES; ESOPHAGEAL VARICES; PEPTIC ULCER HEMORRHAGE.
The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
The vessels carrying blood away from the heart.
The use of photothermal effects of LASERS to coagulate, incise, vaporize, resect, dissect, or resurface tissue.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.
Ultrasonography applying the Doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (Stedman, 25th ed)
Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.
Radiography of blood vessels after injection of a contrast medium.
A condition in which the hepatic venous outflow is obstructed anywhere from the small HEPATIC VEINS to the junction of the INFERIOR VENA CAVA and the RIGHT ATRIUM. Usually the blockage is extrahepatic and caused by blood clots (THROMBUS) or fibrous webs. Parenchymal FIBROSIS is uncommon.
The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.
Pathological processes involving any of the BLOOD VESSELS in the cardiac or peripheral circulation. They include diseases of ARTERIES; VEINS; and rest of the vasculature system in the body.
A spectrum of congenital, inherited, or acquired abnormalities in BLOOD VESSELS that can adversely affect the normal blood flow in ARTERIES or VEINS. Most are congenital defects such as abnormal communications between blood vessels (fistula), shunting of arterial blood directly into veins bypassing the CAPILLARIES (arteriovenous malformations), formation of large dilated blood blood-filled vessels (cavernous angioma), and swollen capillaries (capillary telangiectases). In rare cases, vascular malformations can result from trauma or diseases.
The return of a sign, symptom, or disease after a remission.
The innermost layer of an artery or vein, made up of one layer of endothelial cells and supported by an internal elastic lamina.
Inflammation of a vein, often a vein in the leg. Phlebitis associated with a blood clot is called (THROMBOPHLEBITIS).
A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.
A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.
Agents that prevent clotting.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
Tight coverings for the foot and leg that are worn to aid circulation in the legs, and prevent the formation of EDEMA and DEEP VEIN THROMBOSIS. PNEUMATIC COMPRESSION STOCKINGS serve a similar purpose especially for bedridden patients, and following surgery.
Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.
Excision of all or part of the liver. (Dorland, 28th ed)
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
A condition characterized by the dilated tortuous veins of the SPERMATIC CORD with a marked left-sided predominance. Adverse effect on male fertility occurs when varicocele leads to an increased scrotal (and testicular) temperature and reduced testicular volume.
Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
Examination of the portal circulation by the use of X-ray films after injection of radiopaque material.
Neoplasms located in the vasculature system, such as ARTERIES and VEINS. They are differentiated from neoplasms of vascular tissue (NEOPLASMS, VASCULAR TISSUE), such as ANGIOFIBROMA or HEMANGIOMA.
Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles and mammary gland.
Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.
Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.
The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.
Catheters designed to be left within an organ or passage for an extended period of time.
A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.
Transplantation of an individual's own tissue from one site to another site.
A condition characterized by a chronically swollen limb, often a leg with stasis dermatitis and ulcerations. This syndrome can appear soon after phlebitis or years later. Postphlebitic syndrome is the result of damaged or incompetent venous valves in the limbs. Distended, tortuous VARICOSE VEINS are usually present. Leg pain may occur after long period of standing.
Dilated blood vessels in the ESOPHAGUS or GASTRIC FUNDUS that shunt blood from the portal circulation (PORTAL SYSTEM) to the systemic venous circulation. Often they are observed in individuals with portal hypertension (HYPERTENSION, PORTAL).
Surgical venous shunt between the portal and systemic circulation to effect decompression of the portal circulation. It is performed primarily in the treatment of bleeding esophageal varices resulting from portal hypertension. Types of shunt include portacaval, splenorenal, mesocaval, splenocaval, left gastric-caval (coronary-caval), portarenal, umbilicorenal, and umbilicocaval.
The transference of a part of or an entire liver from one human or animal to another.
Pathological processes involving any one of the BLOOD VESSELS in the vasculature outside the HEART.
A dead body, usually a human body.
Either of a pair of tubular structures formed by DUCTUS DEFERENS; ARTERIES; VEINS; LYMPHATIC VESSELS; and nerves. The spermatic cord extends from the deep inguinal ring through the INGUINAL CANAL to the TESTIS in the SCROTUM.
The separation and isolation of tissues for surgical purposes, or for the analysis or study of their structures.
A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.
The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
The portion of the leg in humans and other animals found between the HIP and KNEE.
Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).
A congenital disorder that is characterized by a triad of capillary malformations (HEMANGIOMA), venous malformations (ARTERIOVENOUS FISTULA), and soft tissue or bony hypertrophy of the limb. This syndrome is caused by mutations in the VG5Q gene which encodes a strong angiogenesis stimulator.
Drugs used to cause constriction of the blood vessels.
A condition caused by one or more episodes of DEEP VEIN THROMBOSIS, usually the blood clots are lodged in the legs. Clinical features include EDEMA; PAIN; aching; heaviness; and MUSCLE CRAMP in the leg. When severe leg swelling leads to skin breakdown, it is called venous STASIS ULCER.
The relationship between the dose of an administered drug and the response of the organism to the drug.
A layer of epithelium that lines the heart, blood vessels (ENDOTHELIUM, VASCULAR), lymph vessels (ENDOTHELIUM, LYMPHATIC), and the serous cavities of the body.
Tumors or cancer of the LIVER.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
Central retinal artery and its branches. It arises from the ophthalmic artery, pierces the optic nerve and runs through its center, enters the eye through the porus opticus and branches to supply the retina.
The circulation of blood through the BLOOD VESSELS supplying the abdominal VISCERA.
Creation of a small incised opening in a vein to permit the passage of a needle or cannula for withdrawal of blood, administration of medication, or in diagnostic or therapeutic catheterization. (Dorland, 28th ed.; Stedman, 26th ed.)
The tunnel in the lower anterior ABDOMINAL WALL through which the SPERMATIC CORD, in the male; ROUND LIGAMENT, in the female; nerves; and vessels pass. Its internal end is at the deep inguinal ring and its external end is at the superficial inguinal ring.
The superior part of the upper extremity between the SHOULDER and the ELBOW.
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Endoscopic examination, therapy or surgery performed on the interior of blood vessels.
The use of freezing as a special surgical technique to destroy or excise tissue.
Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.
Recording of change in the size of a part as modified by the circulation in it.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
Injections made into a vein for therapeutic or experimental purposes.
Non-cadaveric providers of organs for transplant to related or non-related recipients.
Surgical removal of an obstructing clot or foreign material from a blood vessel at the point of its formation. Removal of a clot arising from a distant site is called EMBOLECTOMY.
Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics.
The development of new BLOOD VESSELS during the restoration of BLOOD CIRCULATION during the healing process.
Extravasation of blood into the skin, resulting in a nonelevated, rounded or irregular, blue or purplish patch, larger than a petechia.
The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
Layers of connective tissue of variable thickness. The superficial fascia is found immediately below the skin; the deep fascia invests MUSCLES, nerves, and other organs.
The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.
Material used for wrapping or binding any part of the body.
Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
Non-human animals, selected because of specific characteristics, for use in experimental research, teaching, or testing.
The largest branch of the celiac trunk with distribution to the spleen, pancreas, stomach and greater omentum.

Venous duplex scanning of the leg: range, variability and reproducibility. (1/2259)

Despite the many studies on venous haemodynamics using duplex, only a few evaluated the normal values, variability and reproducibility. Therefore, the range and variability of venous diameter, compressibility, flow and reflux were measured. To obtain normal values, 42 healthy individuals (42 limbs, 714 vein segments) with no history of venous disease were scanned by duplex. To determine the reproducibility the intra-observer variability was measured in 11 healthy individuals (187 vein segments) and the inter-observer variability in 15 healthy individuals (255 vein segments) and 13 patients (169 vein segments) previously diagnosed with deep venous thrombosis. Of the 714 normal vein segments, 708 (99%) were traceable, including the crural veins. Of the traceable vein segments, 675 (95%) were compressible and in 696 (98%) flow was present. Of the 42 common femoral vein segments, in 25 (60%) the reflux duration exceeded 1.0 s, but in the other proximal vein segments the reflux duration was less than 1.0 s (95% confidence interval 3.0-10.0). With the exception of the distal long saphenous vein, in the distal vein segments the reflux duration was less than 0.5 s (95% confidence interval 3.5-8.2). The coefficient of variation of the diameter measurements ranged from 14 to 50% and that of the reflux measurements from 28 to 60%. The kappa-coefficient of the inter-observer variability in the classification of compressibility measurements in the patients was 0. 77 and that of the reflux measurements was 0.86. This study shows that almost all veins were compressible in healthy individuals, except the distal femoral veins. In healthy individuals the duration of reflux of the proximal veins was less than 1.0 s and in the distal veins it was less than 0.5 s. The inter-observer variability of the reflux and compressibility measurements in the patients was good.  (+info)

Infrainguinal revascularisation in the era of vein-graft surveillance--do clinical factors influence long-term outcome? (2/2259)

OBJECTIVES: To investigate the variables affecting the long-term outcome of infrainguinal vein bypass grafts that have undergone postoperative surveillance. DESIGN: A retrospective analysis. PATIENTS AND METHODS: Details of 299 consecutive infrainguinal vein grafts performed in 275 patients from a single university hospital were collected and analysed. All grafts underwent postoperative duplex surveillance. Factors affecting patency, limb salvage and survival rates were examined. These factors were gender, diabetes, hypertension, aspirin, warfarin, ischaemic heart disease, run-off, graft type, early thrombectomy, level of anastomoses and indication for surgery. RESULTS: The 6-year primary, primary assisted and secondary patency rates were 23, 47, and 57%, respectively. Six-year limb salvage and patient survival were 68 and 45%, respectively. Primary patency was adversely influenced by the use of composite vein grafts. Early thrombectomy was the only factor that significantly influenced secondary patency. Limb salvage was worse in diabetic limbs, limbs with poor run-off and in grafts that required early thrombectomy. Postoperative survival was better in males, claudicants and in patients who took aspirin. CONCLUSIONS: Although co-morbid factors did not influence graft patency rates, diabetes did adversely effect limb salvage. This study, like others before it, confirms that aspirin significantly reduces long-term mortality in patients undergoing infrainguinal revascularisation.  (+info)

Regulation of myocardial blood flow by oxygen consumption is maintained in the failing heart during exercise. (3/2259)

The hemodynamic abnormalities and neurohumoral activation that accompany congestive heart failure (CHF) might be expected to impair the increase in coronary blood flow that occurs during exercise. This study was performed to determine the effects of CHF on myocardial oxygen consumption and coronary blood flow during exercise. Coronary blood flow was measured in chronically instrumented dogs at rest, during 2 stages of graded treadmill exercise under control conditions (n=10), and after the development of CHF produced by 3 weeks of rapid ventricular pacing (n=9). In the normal dogs, coronary blood flow increased during exercise in proportion to the increase in the heart rate x the left ventricular systolic blood pressure product (RPP). After the development of CHF, resting myocardial blood flow was 25% lower than normal (P<0.05). Myocardial blood flow increased during the first stage of exercise, but then failed to increase further during the second stage of exercise despite an additional increase in the RPP. Myocardial oxygen consumption during exercise was significantly lower in animals with CHF and paralleled coronary flow. Despite the lower values for coronary blood flow in animals with CHF, there was no evidence for myocardial ischemia. Thus, even during the second level of exercise when coronary flow failed to increase, myocardial lactate consumption continued and coronary venous pH did not fall. In addition, the failure of coronary flow to increase as the exercise level was increased from stage 1 to stage 2 was not associated with a further increase in myocardial oxygen extraction. Thus, cardiac failure was associated with decreased myocardial oxygen consumption and failure of oxygen consumption to increase with an increase in the level of exercise. This abnormality did not appear to result from inadequate oxygen availability, but more likely represented a reduction of myocardial oxygen usage with a secondary decrease in metabolic coronary vasodilation.  (+info)

Prevalence of true vein graft aneurysms: implications for aneurysm pathogenesis. (4/2259)

BACKGROUND: Circumstantial evidence suggests that arterial aneurysms have a different cause than atherosclerosis and may form part of a generalized dilating diathesis. The aim of this study was to compare the rates of spontaneous aneurysm formation in vein grafts performed either for popliteal aneurysms or for occlusive disease. The hypothesis was that if arterial aneurysms form a part of a systemic process, then the rates of vein graft aneurysms should be higher for patients with popliteal aneurysms than for patients with lower limb ischemia caused by atherosclerosis. METHODS: Infrainguinal vein grafting procedures performed from 1990 to 1995 were entered into a prospective audit and graft surveillance program. Aneurysmal change was defined as a focal increase in the graft diameter of 1.5 cm or greater, excluding false aneurysms and dilatations after graft angioplasty. RESULTS: During the study period, 221 grafting procedures were performed in 200 patients with occlusive disease and 24 grafting procedures were performed in 21 patients with popliteal aneurysms. Graft surveillance revealed spontaneous aneurysm formation in 10 of the 24 bypass grafts (42%) for popliteal aneurysms but in only 4 of the 221 grafting procedures (2%) that were performed for chronic lower limb ischemia. CONCLUSION: This study provides further evidence that aneurysmal disease is a systemic process, and this finding has clinical implications for the treatment of popliteal aneurysms.  (+info)

Superficial femoral eversion endarterectomy combined with a vein segment as a composite artery-vein bypass graft for infrainguinal arterial reconstruction. (5/2259)

OBJECTIVE: The purpose of this study was to determine the results of composite artery-vein bypass grafting for infrainguinal arterial reconstruction. METHODS: This study was designed as a retrospective case series in two tertiary referral centers. Forty-eight of 51 patients underwent the procedure of interest for the treatment of ischemic skin lesions (n = 42), rest pain (n = 3), disabling claudication (n = 1), and infected prosthesis (n = 2). The intervention used was infrainguinal composite artery-vein bypass grafting to popliteal (n = 18) and infrapopliteal (n = 30) arteries, with an occluded segment of the superficial femoral artery prepared with eversion endarterectomy and an autogenous vein conduit harvested from greater saphenous veins (n = 43), arm veins (n = 3), and lesser saphenous veins (n = 2). The main outcome measures, primary graft patency rates, foot salvage rates, and patient survival rates, were described by means of the life-table method for a mean follow-up time of 15.5 months. RESULTS: The cumulative loss during the follow-up period was 6% and 24% at 6 and 12 months, respectively. The primary graft patency rates, the foot salvage rates, and the patient survival rates for patients with popliteal grafts were 60.0% +/- 9.07%, 75.7% +/- 9.18%, and 93.5% +/- 6.03%, respectively, at 1 month; 53.7% +/- 11.85%, 68.9% +/- 12.47%, and 85. 0% +/- 9.92% at 1 year; and 46.7% +/- 18.19%, 68.9% +/- 20.54%, and 53.1% +/- 17.15% at 5 years. For infrapopliteal grafts, the corresponding estimates were 72.4% +/- 7.06%, 72.9% +/- 6.99%, and 92.7% +/- 4.79% at 1 month; 55.6% +/- 10.70%, 55.4% +/- 10.07%, and 77.9% +/- 9.02% at 1 year; and 33.6% +/- 22.36%, 55.4% +/- 30.20%, and 20.8% +/- 9.89% at 5 years. CONCLUSION: The composite artery-vein bypass graft is a useful autogenous alternative for infrainguinal arterial reconstruction when a vein of the required quality is not available or when the procedure needs to be confined to the affected limb.  (+info)

Evaluation of lidocaine as an analgesic when added to hypertonic saline for sclerotherapy. (6/2259)

PURPOSE: The efficacy of sclerosing agents for the treatment of telangiectasias and reticular veins is well established. The injection of these agents is often associated with pain, and it is not uncommon for sclerotherapists to include lidocaine with the sclerosants in an attempt to reduce the pain associated with treatment. However, there are concerns that this may reduce the overall efficacy of the treatment because of dilution of the sclerosant. Patient comfort and overall outcome associated with treatment using HS with lidocaine (LIDO) versus that using HS alone was compared. METHODS: Forty-two patients were prospectively entered into the study and randomized blindly to sclerotherapy with 23.4% HS or 19% LIDO. Study subjects and treating physicians were blinded to the injection solution used. Injection sites were chosen for veins ranging in size from 0.1 to 3 mm. Photographs of the area to be treated were taken, and the patients rated their pain. They were then observed at regular intervals for four months, and clinical data was collected. Thirty-five subjects completed the full follow-up period, and photographs of the injected area were taken again. Three investigators blinded to the treatment assignment then evaluated the photographs and scored the treatment efficacy according to a standardized system. RESULTS: In the HS group, 61.9% (13 of 21) patients rated their pain as none or mild, whereas 90.5% (19 of 21) of patients in the LIDO group had no or mild discomfort. This difference is significant, with a P value of.034. There was no difference in the overall efficacy of treatment between the two groups. The groups had similar rates of vein thrombosis and skin necrosis. CONCLUSION: Although lidocaine is often used with sclerosing agents, there are no previous reports in the literature to evaluate its effectiveness in reducing the pain experienced by the patient. In this study, patients receiving LIDO experienced significantly less discomfort at the time of injection than patients who received HS alone. There were no differences in the effectiveness of treatment or in the incidence of complications between the two groups.  (+info)

Evaluation of the microdialysis technique in the dog fat pad. (7/2259)

In the present study the microdialysis technique was evaluated in an isolated autoperfused dog fat pad. Concentrations of glucose, lactate, and glycerol were measured in interstitial fluid by microdialysis and simultaneously in arterial and adipose venous plasma. Adipose tissue blood flow was measured by both 133Xe washout and timed weighing of venous blood. Metabolite concentrations in adipose venous plasma calculated from interstitial and arterial metabolite concentrations and 133Xe washout were positively correlated with measured venous concentrations (glucose: r = 0.95, lactate: r = 0.92, glycerol: r = 0.81). Calculated and measured venous plasma concentrations did not differ for either glucose or lactate, but for glycerol, calculated concentration was on average 76% of measured concentration. Metabolite exchanges (Fick's principle) calculated from interstitial metabolite concentrations were positively correlated with measured exchanges only for lactate (r = 0.69). In conclusion, metabolite concentrations in adipose venous plasma can be calculated from microdialysis measurements with greater accuracy for glucose and lactate than for glycerol. The precision, however, is too low to allow calculation of metabolite exchange when arteriovenous metabolite differences are low.  (+info)

A method for collecting right coronary venous blood samples from conscious dogs. (8/2259)

This report describes for the first time a technique to collect right coronary venous blood samples from conscious dogs. Catheters, prepared from Micro-Renathane tubing, were surgically implanted in right ventricular superficial veins of three anesthetized dogs. Also implanted were an arterial catheter, a right coronary flow transducer, and a right coronary artery constrictor. The coronary catheter was introduced at a venous bifurcation so that its side holes were positioned above the bifurcation; both ends of the catheter were exteriorized. Heparinized saline was continuously infused through the venous catheter by a battery-powered pump. The dogs were maintained for 10-13 days after surgery, and all catheters remained patent. Multiple right coronary venous samples were collected from each dog. These samples were analyzed for venous oxygen tension (PvO2) under baseline conditions, with right coronary pressure reduced to 50 mmHg, and during the reactive hyperemia after release of the right coronary artery constriction. PvO2 was 27.7 +/- 1.0 mmHg at baseline, 23.4 +/- 1.0 mmHg during coronary artery constriction, and 34.3 +/- 1.5 mmHg during reactive hyperemia. These data and the position of the catheter at autopsy demonstrated that coronary venous blood had been sampled.  (+info)

We studied alpha- and beta-adrenoceptor-mediated responses of rabbit facial vein rings to adrenergic stimulation to determine the location of the two types of receptors in relation to the sympathetic nerve terminals. Transmural electrical nerve stimulation (TNS) at low frequency elicited large beta-receptor-mediated relaxation responses in rings pretreated with phentolamine (6 x 10(-7)M). These responses were significantly greater than the corresponding alpha-receptor-mediated contractions in rings pretreated with propranolol (10(-6)M). Blockade of neuronal uptake with desmethylimipramine (DMI, 10(-7)M) increased significantly the neurogenic relaxation but had little effect on neurogenic contractility. DMI pretreatment caused a shift to the left (x 5.6) in the relaxant dose-response curve to exogenous l-norepinephrine (NE). The NE contractile dose-response curve was also shifted to the left after DMI pretreatment but by a significantly smaller amount (x 3.1). Neurogenic activation of ...
Introduction, Classification of Transducer, Analog Transducers, Resistive Transducers, Potentiometers, Strain gauges, Types of Strain gauges, Resistance strain gauges, semiconductor strain gauges, Resistance Thermometers, Thermometers, Application of Thermistors, Thermo couple construction, Measurement of thermocouple output, compensating circuits, Advantages and disadvantages of thermocouples, variable inductance type transducer, variation of self inductance, variations of mutual inductance, Linear variable differential transformer, Rotary variable differential transformer, capacitive transducers, Piezo-electric transducers, Digital transducers, Shaft Encoder. (12 ...
AIMS: To assess the comparability of venous and arterial samples for pH, bicarbonate and potassium measurements in critically ill patients. METHODS: Simultaneous arterial and venous samples from 206 critically ill patients were analysed in duplicate. Coefficients of variation and 95% limits of agreement were calculated for arterial and venous samples. Bland-Altman plots were constructed to assess agreement between sampling sites. RESULTS: The median (range) of arterial pH, bicarbonate concentrations, potassium concentrations and glucose concentrations were 7.40 (7.01-7.56), 25 (9-41) mmol/l, 4.2 (3.1-6.8) mmol/l and 7.4 (3.0-13.5) mmol/l, respectively. Coefficients of variation for arterial and venous pH were both 0.1%, with bias (95% limits of agreement) of -0.01 (-0.03 to 0.01) for arterial and -0.01 (-0.02 to 0.01) for venous samples. The bias (95% limits of agreement) between arterial and venous samples was 0.03 (-0.02 to 0.08). Coefficients of variation for arterial and venous bicarbonate results
The dorsal venous network of hand is a superficial network of veins on the back of the hand that is made up of the hands dorsal metacarpal veins. The dorsal venous network empties into the cephalic vein - this is one of the arms primary veins, and is often visible in the crook of the elbow - and the basilic vein (which moves along the base of the forearm and the arm).. ...
Facial veins can appear as spider veins, reticular veins, or varicose veins and are basically abnormally functioning blood vessels that become clogged and enlarged. To understand how this happens let`s examine how the veins work:. The heart is responsible for pumping blood to all areas of the body to supply the oxygen and nutrients that the body needs to survive. Arteries are the pathways that carry the blood to all of the parts of the body. Veins are one way valves that transport the blood back to the heart. When the walls of the vein become weak some of the blood trickles back into the vein and collects there, creating a pool of blood. As a result, the vein becomes clogged and engorged and visibly appears on the surface of the skin.. Spider veins are the most common facial veins. They often resemble the body of a spider, with a red dot in the center and tiny little red veins, called telangiectasias, coming out from all sides. These types of veins normally appear around the nose and cheeks. ...
Unwanted leg veins and spider veins are a very common cosmetic concern. They are caused by leaky valves in the veins and can be hereditary. Pregnancy and occupations that require being on the feet for long periods of time can exacerbate this condition. Wearing compression socks/ stockings and leg elevation can help slow the development of the condition. Sclerotherapy is very effective at improving the appearance of unwanted leg veins. This is a method that involves injecting the veins with a substance that reduces the diameter of the vessels, making them more difficult to see. Lasers can also be used to treat unwanted veins and are commonly used to treat broken blood vessels and veins on the face. We use the Sciton Profile 1064nm NdYAG laser to easily treat unwanted veins. Smaller veins can also be treated by Broad Band Light. We can discuss the right treatment during an in office consultation. ...
Along with angioplasty, autologus vein grafts are commonly used for artery bypass grafting in patients with advanced arterial stenosis and drug-resistant angina pectoris. Although initially a successful procedure, long-term functionality is limited due to proliferation and migration of smooth muscle cells. Like in atherosclerosis, common chronic infections caused by viruses and bacteria may contribute to this process of vein graft failure. Here we investigated the possible role of Chlamydia pneumoniae (Cpn) in the pathogenesis of venous graft failure in an experimental animal model. In 2 groups (n = 10 rats/group), an epigastric vein-to-common femoral artery interposition graft was placed. Immediately thereafter, rats were infected with Cpn (5*108 IFU) or injected with control solutions. Rats were sacrificed three weeks after surgery and the grafts were harvested for morphometrical and immunohistochemical analysis. Cpn administration immediately after vein grafting resulted in a significant increase in
We have shown for the first time to our knowledge that even in the absence of atherosclerosis, the majority of vein graft neointimal and medial cells derive from precursors that are extrinsic to the vein at the time of grafting. We have also provided the first evidence that the arterializing vein graft wall develops largely from focal expansions of progenitor cells, which originate within and outside of the vein graft at the time of implantation. Finally, we have shown that endothelial remodeling of vein grafts is accomplished by the expansion of graft-intrinsic as well as graft-extrinsic cells, and that BM-derived cells participate in this process. Importantly, these novel insights into vein graft biology derive from a murine vein graft system that we have shown to model human vein grafts, with regard to their surgical anastomoses as well as the distribution, composition and extent of neointimal hyperplasia within the grafts.12. Sources of graft-extrinsic neointimal cells in our murine model ...
The facial vein (previously known as the anterior facial vein) is the continuation of the angular vein and joins the anterior branch of the retromandibular vein to form the common facial vein 1-3. Gross anatomy At the level of the lower margin ...
As we age, sometimes our blood vessels weaken, causing facial veins like spider veins. Facial veins can also be caused by hormones or trauma. They can be unsightly or indicate other health problems, but fortunately, elimination of unwanted facial veins is available in Pasco County, FL.
I am 35 male about 200lb and I noticed a large vein under my right underarm. I cannot totally stretch the arm without some pulling restriction. I visited my doctor and he told me to place a warm compre...
Can little blue veins on my legs go away or am I stuck with them - Can little blue veins on my legs go away or am I stuck with them? Sclerotherapy. The good news is you are not stuck with those blue veins. Depending on their size, they can be very effectively treated with sclerotherapy (for small veins), phlebectomy (for med size veins) and endovenous ablation for the larger veins. All of these procedures can be done in an outpatient office. See an experienced vein specialist for evaluation so they can determine which treatment is best!
Synonyms for anterior cardinal vein in Free Thesaurus. Antonyms for anterior cardinal vein. 1 word related to anterior cardinal vein: cardinal vein. What are synonyms for anterior cardinal vein?
The formation of arterial and venous (AV) branches must be exquisitely coordinated to generate proper AV circuitry essential for vascular function. The mechanis...
Although broken capillaries and facial veins do not pose any health risks, they can take away from your confidence and make you look older than you really are. Thats where laser vein therapy comes in. Laser Vein Therapy is an easy way to have a smoother complexion. Learn how to fix your facial veins and redness in Reno, NV
The good news: Facial veins can be treated with advanced technology using several laser systems designed specifically to erase facial veins.* And only our physician, Dr. Roper, performs these treatments.. The Excel V Laser is an excellent treatment for facial veins , spots and redness, incorporating the 532 nm and 1064 laser wavelengths to gently pull facial redness, veins, and spots off the skin, states Dr. Roper. The Candela VBeam Laser, the Gentle Yag 1064 laser and the Iridex KTP 532, are also excellent lasers for my patients with facial veins and redness, requiring no preparation and minimal post-treatment care, states Dr. Roper. the 532 nm and 1064 nm laser emits a continuous wave light which passes through a crystal and is selectively absorbed by the deep red hue of the hemoglobin inside the vein, sealing the vein without bruising. One can safely combine these lasers in the same appointment in order to decrease the number of treatments that are needed to obtain maximal results for ...
This thesis investigates the principal factors responsible for early failure of femorodistal vein grafts. Chapter 1 provides an overview of severe lower limb ischaemia which is their principal indication. Chapter 2 outlines the role of surgery in the management of the severely ischaemic limb, concentrating on the development of distal bypass using autogenous vein. Chapter 3 considers the multiple causes of vein graft failure, concentrating on the early period and includes an account of currently employed methods designed to reduce the problem. Chapter 4 is a retrospective review of the results of 130 in situ vein grafts performed at Leicester Royal Infirmary in the 8 year period prior to the commencement of this study. The primary early failure rate was 30%, with two thirds of patients undergoing amputation. Chapter 5 outlines the methods used in a series of 42 patients undergoing distal vein bypass. Preoperative assessment included arteriography and 3 methods using Doppler ultrasound. Doppler ...
Veins carry blood back to the heart. Your legs contain a network of veins. Superficial veins (near the surface of the skin) connect to perforating veins. Perforating veins carry blood from the superficial veins to the deep veins of the thigh and calf. Healthy leg veins contain valves that open and close to assist the return of blood back to the heart. Venous reflux disease develops when the valves that keep blood flowing from the legs back to the heart become damaged or diseased. This can cause blood to pool in your legs, which can lead to a progression of symptoms.. ...
What is the definition and uses of cephalic veinuses? What problems can occur with the cephalic vein? These are frequently-asked questions by those who are suffering from the disease in Syosset. Read on to learn the answers to these questions.
Orlando, Fla.The addition of clopidogrel to aspirin did not lead to a significant reduction in vein graft intimal hyperplasia during the first year after CABG, according to the CASCADE trial presented Monday during the late-breaking clinical trials session at the 2009 American Heart Association conference.
In a normal circulatory system, blood flows to and from the heart through arteries and veins. Arteries take oxygen rich blood away from the heart and veins return blood to the heart. As muscles contract, the blood is squeezed forward in the veins and when muscles relax, the valves shut to prevent blood from flowing backwards. When an abnormal circulatory problem exists, and the blood from the legs cannot efficiently return to the heart, the condition is known as venous insufficiency.. When the vein walls become weak or diseased, a faulty or weak valve can exist within the vein which prevents the valve from directing the blood flow upwards and against the pull of gravity. The reflux of blood in a negative direction is caused by a malfunctioning valve. This leads to a pooling of the blood or backward flow and can cause a variety of vein complications such as chronic vein disease, which includes varicose and spider veins, reticular veins, deep vein thrombosis (DVT) or blood clots, superficial ...
Generalized alterations in venous tone may shift large amounts of blood within the vascular system. Both physical and emotional stimuli are capable of affecting venous tone. The present report is a study in healthy males of the effects of certain of these factors on pressure (tone) in a peripheral vein segment isolated by means of specially designed, Plexiglas vein occluders. The emotional stimuli employed were the most effective of the group in increasing venous tone.. ...
Chemotherapy is often given through a thin needle that is placed in a vein on your hand or lower arm. Your nurse will put the needle in at the start of each treatment and remove it when treatment is over. Let your doctor or nurse know right away if you feel pain or burning while you are getting IV chemotherapy.. IV chemotherapy is often given through catheters or ports, sometimes with the help of a pump.. Catheters. A catheter is a soft, thin tube. A surgeon places one end of the catheter in a large vein, often in your chest area. The other end of the catheter stays outside your body. Most catheters stay in place until all your chemotherapy treatments are done. Catheters can also be used for drugs other than chemotherapy and to draw blood. Be sure to watch for signs of infection around your catheter. For more information on infection, see Infection.. Ports. A port is a small, round disc made of plastic or metal that is placed under your skin. A catheter connects the port to a large vein, most ...
In some instances your surgeon may recommend placement of a filter, which acts like a trap, to block clots from travelling up to your lungs (a PE). This is a minimally invasive procedure that we do under a local anesthetic. We place a catheter in a vein that we advance into the vena cava - the large vein in your abdomen that both of your leg veins drain into on their way to the heart and lungs. The filter looks a lot like an umbrella with no fabric, so normal blood can flow past, but the filter will trap large clots so your body can break them down. Many times these filters are removable and we can remove them when the concern for a PE has lessened. The decision to place and/or remove a filter depends on several factors that we will discuss with you.. ...
Treating vein issues starts with lifestyle changes. Making sure you are healthy, and your weight is under control can help. A diet low in sodium and rich in potassium can help reduce water retention in the body, which is good for your veins. Regular exercise improves circulation and blood flow. But these changes are sometimes not enough to fight back against vein issues.. At Precision Vein Therapeutics, we offer leading treatments to help remove troublesome vein issues. Dr. Michael and Polly Anna Barlow have trained with some of the best vein specialists to provide our patients to find the relief that they want. Our goal is to help you feel your best by using minimally invasive procedures that remove vein issues.. The symptoms of vein disease are more than just uncomfortable. Achy, swollen legs are not fun for anyone. But large varicose and spider vein bundles can be unsightly and cause significant emotional distress. Weve seen patients who are afraid to show their legs in public out of fear of ...
The average persons deep vein system carries about 80% of blood from the feet back up to the heart. Deep veins are located in the center of your leg under the muscles and fascia layers (thats the fibrous tissue that surrounds the muscles). The system is under a great deal of pressure, because each time you take a step, the muscles around the deep veins squeeze these veins and force the blood uphill, or back towards your heart, against gravity.. When a blood clot forms in one of the large veins - usually in one of the lower limbs, such as the thigh or calf - leading to either partially or completely blocked circulation, this is called a deep vein thrombosis (DVT). Symptoms may include pain, tenderness, swelling or discoloration of the affected area, and skin that is warm to the touch, although only about half of people with DVT experience any of these symptoms.. A clot in a deep vein can be dangerous because the high pressure could cause the clot to let go, or break free from the vein wall ...
Houston cornerback D.J. Hayden remains hospitalized in stable, yet critical condition after tearing a vein in a collision with a teammate during practice.
The facial vein is a branch of the external carotid vein. It returns deoxygenated blood from the pharynx (throat), palate, chin, lips, and nose back to the heart.. ...
Diagnosis of venous disorders, treatment of large vein incompetence, and treatment of smaller veins are procedures conducted at the Vein Center of Ventura
aberrant ability accumulated acquisition advanced aims amount anatomical anterior application applies approaches arbitrary arrow arteries artifact basis better bipolar block blood brain calibration called cerebral characterizing clinical clinicians complete complex contrast converted corrected correcting correction cosines cycled dept draining eddy encoding entire error female field finally fitting five flow fuses generate generated gradient gradients green ideally immediate imperfections improve improved improves includes incorporated individually induced inhomogeneity intensity introduced linear magnitude male many mapping maps matrix measure measured merging metabolism mono named observe occipital opposite optimize oxygen oxygenation path perturbed portion posterior potential preparation press protocols pulses pure quantification rapid recently reconstruct reconstructed reduction relationship remains removal remove removed removing representative risk scanned selective sensitize sensitized ...
Ajith G. Kumar, Christie M. Ballantyne, Lloyd H. Michael, Gilbert L. Kukielka, Keith A. Youker, Merry L. Lindsey, Hal K. Hawkins, Holly H. Birdsall, Charles R. MacKay, Gregory J. LaRosa, Roger D. Rossen, C. Wayne Smith, Mark L. Entman ...
The term gastric vein refers to different veins located in the stomach. The short gastric veins are located on the left side of the stomach, between the gastrolienal ligaments . The veins act as a drainage system for the stomach, particularly around the fundus. The fundus stores undigested food until
The lower limb veins are anatomically and functionally classified into three categories - Superficial veins, Deep veins and Perforating veins.
FMRI is a technique using BOLD contrast to identify areas of cerebral activity. Large vessels contribution to this signal induces a delay in the measured response. It is therefore imperative to precisely colocalize brain activity and large veins. MR venography is an acquisition procedure using phase variations to reinforce cerebral vasculature on anatomical data. In this article, we present a method to register brain large veins and activation map in order to achieve an accurate interpretation of measured activity ...
The vein or veins entering the leaf from the petiole are called primary or first order veins. The veins branching from these are secondary or second order veins. These primary and secondary veins are considered major veins or lower order veins, though some authors include third order.[24] Each subsequent branching is sequentially numbered, and these are the higher order veins, each branching being associated with a narrower vein diameter.[25] In parallel veined leaves, the primary veins run parallel and equidistant to each other for most of the length of the leaf and then converge or fuse (anastomose) towards the apex. Usually many smaller minor veins interconnect these primary veins, but may terminate with very fine vein endings in the mesophyll. Minor veins are more typical of angiosperms, which may have as many as four higher orders.[24] In contrast, leaves with reticulate venation there is a single (sometimes more) primary vein in the centre of the leaf, referred to as the midrib or costa ...
Bulging hand veins or prominent hand veins can make you feel uncomfortable due to their appearance or in some people, it might indicate some underlying medical problem as well. Bulging hand…
Leg veins are visible on the surface of the skin as red, green or blue lines. This type of veins are commonly found on the face and leg.
Large, unsightly hand veins are usually the result of loss of supportive tissue as well as aging. The elimination of these veins can be done quickly and safely without surgery.. Hands usually look 10 to 15 years younger within days of treatment. Upon seeing the more youthful appearance of the hands, many patients ask for laser treatment of their sun spots which is performed in the office as well.. ...
DISCUSSION. All patients presented at least one risk factor associated with VTE. The most common risk factors were CVC, cancer and use of TPN. The use of CVC was the most frequent factor, as demonstrated in the study by Van Ommen et al., with neonates (94%).13 The frequency of VTE related with catheter observed in the systematic review by Vidal et al., which included 3,128 patients aged ,18 years, was 0.20 (95%CI 0.16-0.24).3 Andrew et al. verified that more than 50% of the VTE in children, which occurred in the upper venous network, were a result of the use of CVC,12 which calls our attention as to the location of VTEs in our study. More than half of the patients presented with thrombosis in the upper venous network. The mechanisms that can explain VTE related with CVC include lesions to the vessel wall caused by the CVC itself or by the infusion of substances like TPN and chemotherapy through the catheter, blockage of the blood flow or the material the catheter is made of.3,16 According to the ...
In most cases vericose veins are not alwats a cause for alarm.. Many people have lived and died with them,and also had a healthy life.. The mild pains that arises from vericose veuns can be alleviated through some self care processes such as exercise,lifting the legs often and wearing compression socks.. But if youre concerned about how your veins look and feel and self-care measures havent stopped your condition from getting worse, see your doctor.. Causes. -. It is the function of arteries to transport blood from the heart which is the pump to all other parts of the body through the circulatory system.. Veins on the other hands functions to return the circulated blood from the rest of the body back to the heart for oxygenation.. This process of returning circulated blood requires the veins on the legs and feet to work against gravity as they have to push the blood back to the heart. ...
Outflow from collecting veins is via secondary conduit veins that have thicker walls and are less distensible. Most of these veins are subfascial and are surrounded by tissues that are dense and tight... more
The temporal veins are several veins found in the head that drain into the temporal region, located on each side of the head. Veins are designated as either superficial or deep. Superficial veins are close to the surface of the skin.
When a patient needs a subcutaneous port placed in the body it is typically done in an operating room setting under general anesthesia. Sometimes local anesthesia is used for adults and older children. During placement Dr. Tilara will make two small incisions in the skin - one in the chest to place the port and the other near the collarbone where the catheter will enter a vein in the lower part of the neck. The catheter is placed in a large vein in the neck and threaded into or near the right atrium of the heart. The other end of the catheter is tunnelled under the skin and attached to the port. The port is then placed under the skin in the chest and stitched to the underlying muscle. The site may be tender for a few days but will heal quickly and secure the port. ...
It is extremely difficult to prevent leg veins if you are at a high risk of getting them. Thankfully, just because you develop spider and...
Youre seeing a 5 day old with a fever of 39. Attempts to get IV access have been unsuccessful. The child is alert and not toxic appearing, but youd like to get empiric antibiotics started within the first hour of evaluation. What are your options other than drilling with an IO or embarking on a potentially long sweaty frustrating attempt at a central line in a neonate? An ultrasound-guided peripheral line is one possibility if you have the skills. Another vascular access method to keep in mind is the umbilical venous line - the umbilical vein can stay patent up to 7-10 days of life! Soak the dry cord in saline soaked gauze to soften it, use a scalpel to cut straight across at 1-2cm from the base, look for the single large vein, insert a pre-flushed catheter with gentle pressure into the vein while pulling back on a syringe until you see a flash of blood. For more info: The Fast-cath ...
The top twenty most frequently cited articles in the history of ANZJS, according to data from the Web of Knowledge . Interposition vein cuff for anastomosis of prosthesis to small artery J. H. Miller, R. K. Foreman, L. Ferguson, I. Faris DOI 10.1111j.1445-2197.1984.tb05318.x Volume 54 Issue 3 June 1984 - p 283-285 Easy and successful treatment of...
The angular vein drains the anterior region of the scalp 1. It is formed by the union of the supratrochlear and supraorbital veins and becomes the facial vein 1,2,3. Gross Anatomy The angular vein is formed at the medial canthus as the supratro...
Right ovarian vein aka Vena ovarica dextra in the latin terminology and part of axial ct images at the level of vertebra l4. Learn more now!
NO SUPPLEMENTS NEEDED..Do you want to look vascular and have great pumps in the gym? This video will give you such 4 products which values under rs 10 and increases your vascularity and pump ...
Question - Vein on the right side of neck pulsate rapidly. What could cause this?. Ask a Doctor about Common carotid artery, Ask a General & Family Physician
Deep vein thrombosis[edit]. Deep vein thrombosis (DVT) has an incidence of 0.5 to 7 per 1,000 pregnancies, and is the second ... with low molecular weight heparin may be indicated when there are additional risk factors for deep vein thrombosis.[16] ...
Analyses of vein patterns often fall into consideration of the vein orders, primary vein type, secondary vein type (major veins ... The vein or veins entering the leaf from the petiole are called primary or first order veins. The veins branching from these ... The number of vein endings is very variable, as is whether second order veins end at the margin, or link back to other veins.[ ... Veins arranged like the rungs of a ladder, particularly higher order veins. Submarginal. Veins running close to leaf margin. ...
The latter are connecting veins that transport blood from the superficial veins to the deep veins. Branch varicose veins are ... Radiofrequency ablation is used to treat the great saphenous vein, the small saphenous vein, and the perforator veins. ... Varicose veins[edit]. Radiofrequency ablation is a minimally invasive procedure used in the treatment of varicose veins. It is ... Endovenous ablation of perforator veins *^ Avery J, Kumar K, Thakur V, Thakur A (2014). "Radiofrequency ablation as first-line ...
Absorption spectrum for veins[edit]. In this case S. v. O. 2. {\displaystyle SvO_{2}\,}. ≈ 60% (venous oxygen saturation). Then ... Figure 6 (b): Spectra for veins (SvO2 ≈ 60%). Absorption coefficient: λmin = 730 nm; NIR window = (664 - 932) nm. ... tissue saturation index)), it is necessary to define a distribution of arteries and veins in tissue. an arterial-venous blood ...
C. Nasal blood supply - arteries and veins[edit]. Like the face, the human nose is well vascularized with arteries and veins, ... the nasal vein vascularisation of the nose generally follows the arterial pattern of nasal vascularisation. The nasal veins are ... the blood supply arteries and veins; D. the nasal lymphatic system; E. the facial and nasal nerves; F. the nasal bone; and G. ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
... is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ...
Veins *Large collecting vessels, such as the subclavian vein, the jugular vein, the renal vein and the iliac vein. ... In all veins apart from the pulmonary vein, the saturation of hemoglobin is about 75%.[citation needed] (The values are ... The arteries and veins have three layers. The middle layer is thicker in the arteries than it is in the veins: *The inner layer ... The outer layer is Tunica adventitia and the thickest layer in veins. It is entirely made of connective tissue. It also ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
... that form in the deep veins of the legs or in the pelvic veins. Nevertheless, they can progress to the deep veins through the ... Since the veins return blood to the heart, if a piece of a blood clot formed in a vein breaks off it can be transported to the ... Renal vein thrombosis (thrombosis of the veins of the kidneys. Parodoxical embolism[edit]. Systemic embolism of venous origin ... It is increasingly found in the deep veins of the arm, accounting for more than 10% of all deep vein thromboses.[1][2] If the ...
Renal vein thrombosis[edit]. Main article: Renal vein thrombosis. Renal vein thrombosis is the obstruction of the renal vein by ... Portal vein thrombosis[edit]. Main article: Portal vein thrombosis. Portal vein thrombosis affects the hepatic portal vein, ... Deep vein thrombosis[edit]. Main article: Deep vein thrombosis. Deep vein thrombosis (DVT) is the formation of a blood clot ... Jugular vein thrombosis[edit]. Jugular vein thrombosis is a condition that may occur due to infection, intravenous drug use or ...
I83) Varicose veins of lower extremities *(I83.0) Varicose veins of lower extremities with ulcer *Varicose ulcer (lower ... I83.1) Varicose veins of lower extremities with inflammation. *(I83.2) Varicose veins of lower extremities with both ulcer and ... I82.3) Embolism and thrombosis of renal vein. *(I82.8) Embolism and thrombosis of other specified veins *Paget-Schroetter ... I80-I89) Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified[edit]. *(I80) Phlebitis and ...
Associated superficial varicose veins or "ankle flare", a collection of small, dark, engorged superficial veins [5] ... causing the pressure in veins to increase.[6][7][8][9] The body needs the pressure gradient between arteries and veins in order ... Venous stasis results from damage to the vein valvular system in the lower extremity and in extreme cases allows the pressure ... Venous hypertension may also stretch veins and allow blood proteins to leak into the extravascular space, isolating ...
When thrombophlebitis affects the greater veins, it can progress into the deep venous system, and may lead to pulmonary ... is a rare condition which involves thrombophlebitis of the superficial veins of the breast and anterior chest wall. It ...
... is a class of diseases of the blood vessels - the arteries and veins of the circulatory system of the body. It ...
... that form in the deep veins of the legs or in the pelvic veins. Nevertheless, they can progress to the deep veins through the ... Since the veins return blood to the heart, if a piece of a blood clot formed in a vein breaks off it can be transported to the ... A common type of venous thrombosis is a deep vein thrombosis (DVT), which is a blood clot in the deep veins of the leg. If the ... Portal vein thrombosis. References[edit]. *^ Saha P, Humphries J, Modarai B, et al. (2011). "Leukocytes and the natural history ...
Renal vein thrombosis[edit]. Main article: Renal vein thrombosis. Renal vein thrombosis is the obstruction of the renal vein by ... Portal vein thrombosis[edit]. Main article: Portal vein thrombosis. Portal vein thrombosis affects the hepatic portal vein, ... Deep vein thrombosis[edit]. Main article: Deep vein thrombosis. Deep vein thrombosis (DVT) is the formation of a blood clot ... Paget-Schroetter disease is the obstruction of an upper extremity vein (such as the axillary vein or subclavian vein) by a ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Veins. Inflammation. *Phlebitis. Venous thrombosis /. Thrombophlebitis. *primarily lower limb *Deep vein thrombosis ...
Taking a healthy piece of vein, the surgeon attaches it to the coronary artery, just above and below the blockage to allow ...
Vein. suprarenal veins. Nerve. celiac plexus, renal plexus. Lymph. lumbar glands. Identifiers. ...
... which is a branch of the portal vein. Because of the extensive venous plexus that exists between this vein and other veins, if ... All these veins drain into the superior vena cava, with the exception of the left gastric vein, which is a branch of the portal ... The esophagus also lies in front of parts of the hemiazygos veins and the intercostal veins on the right side. The vagus nerve ... These blood vessels anastomose (join up) with those of the portal vein when portal hypertension develops.[26] These blood ...
... the interlobular provide blood to the arcuate veins then back to the interlobar veins, which come to form the renal vein ... A recessed area on the concave border is the renal hilum, where the renal artery enters the kidney and the renal vein and ... They receive blood from the paired renal arteries; blood exits into the paired renal veins. Each kidney is attached to a ureter ... 1. Renal pyramid • 2. Interlobular artery • 3. Renal artery • 4. Renal vein 5. Renal hilum • 6. Renal pelvis • 7. Ureter • 8. ...
Caused by compression of the inferior vena cava and pelvic veins by the uterus leads to increased hydrostatic pressure in lower ... Varicose veins. Common complaint caused by relaxation of the venous smooth muscle and increased intravascular pressure. ... In addition, pregnancy may result in pregnancy complication such as deep vein thrombosis or worsening of an intercurrent ... Haemorrhoids (piles). Swollen veins at or inside the anal area. Caused by impaired venous return, straining associated with ...
... veins near the heart muscle. Consequently, blood flow due to the aforementioned structural abnormalities is affected, either by ...
Bridging veins Symptoms (depending on the severity)[21] Lucid interval followed by unconsciousness. Gradually increasing ... The circumferential arrangement of collagen surrounding the vein makes it susceptible to such tearing.[citation needed] ... As the brain shrinks with age, the subdural space enlarges and the veins that traverse the space must cover a wider distance, ... Acute subdural hematoma is usually caused by external trauma that creates tension in the wall of a bridging vein as it passes ...
Deep vein thrombosis (DVT) is a condition in which a blood clot develops in the deep veins, most commonly in the lower ... Deep Vein Thrombosis & Pulmonary Embolism. Nimia L. Reyes, Michele G. Beckman, Karon Abe ... .header { position: absolute; width: 230px; height: 80px; ...
Varicose veins are predominately seen in the lower extremities and are a manifestation of... ... Varicose veins are dilated and tortuous superficial veins seen in the spectrum of chronic venous disorders. ... Varicose veins Venous insufficiency Venous reflux Endovascular thermal ablation Spider veins Reticular veins Endovascular laser ... Varicose veins are dilated and tortuous superficial veins seen in the spectrum of chronic venous disorders. Varicose veins are ...
This makes the vein swell up, and that swollen vein is a varicose vein. ... Thats why veins look purple or blue.. What Causes Varicose Veins?. Its a lot of work to move all that blood. To do their job ... So the veins have to work extra hard to get that blood back up to the heart, and some of those veins can wear out over time. ... Varicose veins are more common in women, and people are more likely to get them as they get older. These veins can be genetic ( ...
Varicose veins are veins that are swollen and bulge above the surface of the skin. They may be twisted and are often blue or ... What are varicose veins?. Varicose veins are veins that are swollen and bulge above the surface of the skin. They may be ... Veins return blood back to the heart so that it can be recirculated to the rest of your body. There are valves in your veins ... Varicose veins are most commonly found on the legs or feet, but they can also be found on the groin. Varicose veins that you ...
The hepatic veins originate in the liver lobules central vein. Hepatic veins are unusual in that they do not have valves. ... Hepatic veins are blood vessels which transport the livers deoxygenated blood and blood which has been filtered by the liver ( ...
Veins. Iceage playing US shows after Posh Isolation Fest, including dates w/ Uniform (mems The Me…. Iceage in Portland in 2013 ... DOWNLOAD: Veins - "ARTS" (MP3). DOWNLOAD: Failures - "Rearing" (MP3). DOWNLOAD: Castevet - "Grey Matter" (MP3). DOWNLOAD: ... Synth-driven gothic beats from Believer/Law (mem Drunkdriver, Veins and the recently added Sean Ragon of Cult of Youth) will ...
axillary vein (connects the brachial vein to the subclavian vein and receives veins of the outer thorax and the scapula). ... portal vein (brings blood from the upper and lower mesenteric vein, ther right gastric vein and the splenic vein into the liver ... smaller saphenal vein (superficial vein bringing blood from the net of veins on the back of the foot to the popliteal vein). ... pelvic vein, common iliac vein (brings blood from the inner and outer pelvic vein to the inferior caval vein). ...
A deep vein is a vein that is deep in the body. This contrasts with superficial veins that are close to the bodys surface. ... Deep veins are almost always beside an artery with the same name (e.g. the femoral vein is beside the femoral artery). ... Occlusion of a deep vein can be life-threatening and is most often caused by thrombosis. Occlusion of a deep vein by thrombosis ... Posterior tibial vein. References[edit]. *^ Princeton Review (2003). Anatomy Coloring Workbook, Second Edition. The Princeton ...
Subclavian vein. The thyroid gland and its relations. (Right subclavian vein visible at bottom left, left subclavian vein ... From here it joins with the internal jugular vein to form the brachiocephalic vein (also known as "innominate vein"). The angle ... Each subclavian vein is a continuation of the axillary vein and runs from the outer border of the first rib to the medial ... The subclavian vein is a paired large vein, one on either side of the body. Their diameter is approximately that of the ...
English: Leaf veins. *See also: Category: Leaves on black background + Category: Leaves on white background. ... Eriophyes inangulis (mite sp.) induced alder vein angle gall on Alnus (Alder), Arnhem, the Netherlands.jpg 912 × 1,368; 393 KB ... After rain veins of group of leaves.jpg 2,451 × 3,364; 1.81 MB. ... Category:Leaf veins. From Wikimedia Commons, the free media ... Media in category "Leaf veins". The following 200 files are in this category, out of 377 total. ...
... and enlarged veins that you can see under the skin. They are often red or blue in color. They most often appear in the legs, ... The vein hardens and disappears.. *Phlebectomy. Small surgical cuts are made in the leg near the damaged vein. The vein is ... Varicose veins are swollen, twisted, and enlarged veins that you can see under the skin. They are often red or blue in color. ... Varicose veins tend to get worse over time. Taking self-care steps can help relieve achiness and pain, keep varicose veins from ...
... or spider veins) are swollen, twisted veins that you can see just under the skin. Learn about how to keep them from getting ... Varicose Veins (Vascular Cures) - PDF * Varicose Veins and Spider Veins (Department of Health and Human Services, Office on ... Varicose vein - noninvasive treatment (Medical Encyclopedia) Also in Spanish * Varicose vein stripping (Medical Encyclopedia) ... Bulging Veins: What to Do About Varicose Veins (National Institutes of Health) Also in Spanish ...
Most people deal with spider veins as they get older. But people with fibromyalgia are more likely than others to develop them ... What Are Spider Veins?. Spider veins-or telangiectasia, as theyre called scientifically-are enlarged veins that grow close to ... Spider veins are very common in people with fibromyalgia. The type of people who develop spider veins tend to be older women. ... But spider veins can sometimes lead to serious health problems. The most common side effect is pain. The swollen veins often ...
... why are veins blue? a likely response is that theyre blue because the blood in veins is deoxygenated. While its true that ... veins within the body do not appear blue either. So, not only is blood not blue, veins on their own arent either. "Blue veins ... The veins that are blue normally probably disappear or get hard to see if it gets cold enough. In the lips the veins are ... The veins on my hands and elsewhere actually look purple. On my feet / ankles where veins are most prominent, half look purple ...
... adjacent dorsal digital veins join to form the dorsal metatarsal veins after carrying blood up to the small saphenous vein, ... On the sole of the foot, the superficial veins form a plantar Continue Scrolling To Read More Below... ... cutaneous venous arch that extends across the root of the toes and opens at the sides of the foot into medial and lateral veins ... communicate with the plantar digital veins in the clefts between the toes. The metatarsal vessels unite across the far ends of ...
Watch Glacier Veins video for "Feel Better Now". Portland atmospheric pop punks Glacier Veins have a new video for one of the ... Portland punks Glacier Veins list their top 10 albums of 2020. Portland, OR atmospheric pop punks Glacier Veins released one of ... Glacier Veins. 10 songs from the 2021 pop punk revival you need to know. From hitmakers like Machine Gun Kelly and Olivia ... stream Glacier Veins atmospheric pop punk debut LP The World You Want To See. The Portland band puts an ethereal twist on ...
... veins carry deoxygenated blood. The oxygen-depleted blood passes from the capillaries to the venules (small veins). ... Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, ... vein. vein, blood vessel that returns blood to the heart . Except for the pulmonary vein, which carries oxygenated blood from ... Valves are most numerous in the veins of the extremities, and are absent in the smallest veins. Veins are subject to ...
Treatment of Varicose Veins. Br Med J 1947; 2 doi: (Published 01 November 1947) Cite ...
Learn more about the causes, treatment, and prevention of spider veins here. ... Spider veins are smaller and thinner than varicose veins and usually appear on the face or legs. They are generally painless ... What can I do about varicose veins?. Spider veins and varicose veins are both types of venous insufficiency. Learn more about ... Spider veins are small, damaged veins that can appear on the surface of the legs or face. They are usually not painful or ...
Scientists have grown human veins in a laboratory, in a breakthrough that could revolutionise heart bypass surgery, the Daily ... The DIY veins that could transform heart surgery: Breakthrough for bypass operations could also help kidney patients ... The Daily Telegraphs report that the new veins can be "safely transplanted into any patient" is not supported by the research ... The bioengineered veins (TEVGs) were stored for 12 months at a temperature of 4C. ...
... veins of the Loma Blanca fault are evident in this slab of rock on the fault. These veins of calcite reveal a record of fluid- ... The white calcite veins of the Loma Blanca fault are evident in this slab of rock on the fault. These veins of calcite reveal ...
With varicose veins, you have a vein that starts to have issue with blood flow. The valves … ... Varicose veins are condition that affect women and men as they age. ... With varicose veins, you have a vein that starts to have issue with blood flow. The valves of the vein does not close properly ... With varicose veins, you have a vein that starts to have issue with blood flow. The valves of the vein does not close properly ...
Kiva Lending Team: Veins Jabriya. A Friends team since Aug 8, 2010 ...
TREATMENT OF VARICOSE VEINS. Br Med J 1931; 1 doi: (Published 07 February 1931) Cite ...
... varicose veins dont cause medical problems. but in some people, they can lead to pain that interferes with walking or standing ... Can varicose veins cause medical problems?. ANSWER Usually, varicose veins dont cause medical problems. But in some people, ... National Heart, Lung and Blood Institute: "What Are Varicose Veins?" Cleveland Clinic: "Varicose and Spider Veins" ... National Heart, Lung and Blood Institute: "What Are Varicose Veins?" Cleveland Clinic: "Varicose and Spider Veins" ...
The causes of varicose veins. Throughout its tour of the body, your blood, like trying to get water to flow uphill, can come ... The removal of varicose veins.. The operation to remove varicose veins can be performed in the same day and rarely requires ... Secondly, but not always and depending on the nature of the veins, the vein can be stripped out altogether. Finally, a number ... Time, like veins, come to the surface of your skin and you no longer can ignore whats been done to you, the good and the bad, ...
A Varicose veins usually develop in the legs. When the valves in the veins do not function properly, the blood pools in the ... Surgery for varicose veins is neither curative nor preventative. Even early surgery of uncomplicated veins will not prevent the ... out the offending vein and creates a tiny circulation bypass in place of the vein. However, there are a huge number of ... Varicose veins recur in 10 per cent of those who have had them surgically stripped, in 10 per cent of those who have had ...
Let the life come back and force through my veins / It goes, it goes / Through the ... Lyrics to Veins by Charlotte Martin: I know you know / ... Veins Lyrics Languages Arabic Deutsch Greek English Spanish ... Let the light, the life force back in our veins. The unshackling of the chains on my wrists. And the loyalty to pain that ... Letting life that floods my veins bring me back. The unshackling of the chains on my wrists. And the loyalty to pain that ...
... kind of colour spider veins on my forehead and was wondering if vitamin k creme is actually effective in fading these veins? ... veins. Hia i was wondering if you could help me, Ive got a few faint bluish kind of colour spider veins on my forehead and was ... Hia i was wondering if you could help me, Ive got a few faint bluish kind of colour spider veins on my forehead and was ... i go to the gym 3-4 days a week and train with weights and before i started the gym my veins were fine. Would love a reply, ...
  • Varicose veins are dilated and tortuous superficial veins seen in the spectrum of chronic venous disorders. (
  • Varicose veins are predominately seen in the lower extremities and are a manifestation of chronic venous valvular insufficiency causing increased pressure in the lower extremity venous system. (
  • The diagnosis and treatment of varicose veins require a vascular specialist with a thorough understanding of the anatomy, physiology, and physical examination of the venous system. (
  • Updated terminology of chronic venous disorders: the VEIN-TERM transatlantic interdisciplinary consensus document. (
  • Coleridge-Smith P, Labropoulos N, Partsch H, Myers K, Nicolaides A, Cavezzi A. Duplex ultrasound investigation of the veins in chronic venous disease of the lower limbs--UIP consensus document. (
  • As the subclavian vein is large, central and relatively superficial, it is often used to place central venous lines . (
  • cutaneous venous arch that extends across the root of the toes and opens at the sides of the foot into medial and lateral veins. (
  • Spider veins and varicose veins are different forms of a medical condition called venous insufficiency. (
  • Spider veins and varicose veins are both types of venous insufficiency. (
  • The Systemic Veins return the venous blood from the body generally to the right atrium of the heart. (
  • The Portal Vein, an appendage to the systemic venous system, is confined to the abdominal cavity, and returns the venous blood from the spleen and the viscera of digestion to the liver. (
  • Thus, between the venous sinuses of the cranium, and between the veins of the neck, where obstruction would be attended with imminent danger to the cerebral venous system, large and frequent anastomoses are found. (
  • The same free communication exists between the veins throughout the whole extent of the vertebral canal, and between the veins composing the various venous plexuses in the abdomen and pelvis, e. g., the spermatic, uterine, vesical, and pudendal. (
  • At the outer border of the first rib, the axillary vein becomes the subclavian vein, the terminal point of the venous system characteristic of the upper extremity. (
  • A venous ulcer may develop in a patient with varicose veins, due to the increased venous pressure in the lower legs. (
  • If you experience aching, swelling, heaviness, fatigue or varicose veins in your legs, you may be suffering from superficial venous reflux, also known as superficial venous insufficiency. (
  • Dr. Charles F. Gould ll, of The Richmond Vein Center in Virginia, provides the most current and least invasive office treatments for varicose veins, spider veins and most venous disorders that involves little or no pain. (
  • Spider veins are the visible surface manifestations of an underlying condition known as venous insufficiency. (
  • Endo-venous Laser Treatment - or EVLT - is a fast, safe, and effective method of treatment for patients suffering from varicose veins and vein reflux disease. (
  • By waiting until this advanced stage, men are at a higher risk of developing the worst vein problems, including venous ulcers, and it makes treatment much more complicated. (
  • Randomized clinical trial comparing endovenous laser ablation, radiofrequency ablation, foam sclerotherapy, and surgical stripping for great saphenous varicose veins with 3-year follow-up. (
  • To get rid of varicose veins, some of the things doctors can do is zap them with light from a special laser or use something called sclerotherapy (say: skler-OH-thair-uh-pee). (
  • In sclerotherapy, the doctor injects fluid into the vein that makes it shrivel up. (
  • Varicose veins: endovenous ablation and sclerotherapy. (
  • The most basic treatment is called sclerotherapy and involves a doctor injecting a chemical into the veins that cause it to shut off. (
  • The gold standard of spider vein treatment is sclerotherapy. (
  • During sclerotherapy, the doctor directly injects highly concentrated saline or another type of solution into the vein. (
  • Sclerotherapy involves having a salt solution injected directly into the affected area, causing the veins to collapse. (
  • Sclerotherapy is the most common treatment for both spider and varicose veins. (
  • Sclerotherapy is a process of injecting a chemical solution into targeted veins, causing them to scar and close. (
  • This study will be comparing the treatment of varicose vein tributaries using either foam sclerotherapy or ambulatory phlebectomies. (
  • Patients will be randomised to having either ambulatory phlebectomy (group A) or foam sclerotherapy (group B) following treatment of their saphenous vein. (
  • Sclerotherapy to close off the vein. (
  • Spider Vein Treatment: Sclerotherapy or Laser Vein Treatment? (
  • Sclerotherapy uses foam sclerosant to seal veins by burning the inside of them. (
  • Treatment Options If you are diagnosed with varicose veins, you will need to seek immediate treatment. (
  • Varicose veins are veins that are swollen and bulge above the surface of the skin. (
  • Over time, this can cause a bulge in the vein that branches out, resulting in spider veins. (
  • Should any of these valves wear out, blood collects in the veins making them bulge , giving a very attractive lumpy-leg feature. (
  • Unlike varicose veins, spider veins do not usually bulge or swell . (
  • But varicose veins are thick, gnarled bunches which are dark blue or purple in colour and bulge outwards on the skin. (
  • Hand veins: What causes them to bulge? (
  • Keep reading for information on what causes hand veins to bulge and the possible treatment options to get rid of them. (
  • The pooling blood can make the veins a bit thicker, resulting in them appearing to bulge. (
  • However, if a person exercises frequently, their veins can start to bulge permanently in their hands and other areas of the body. (
  • Any insight into what might be causing my veins to bulge would be much appreciated. (
  • They're different from spider veins or visible veins, which are usually smaller and minus the bulge - and also a not-so-lovely side effect of pregnancy. (
  • The larger veins may appear ropelike and make the skin bulge out. (
  • Spider veins can usually be seen under the skin, but they do not make the skin bulge out like varicose veins do. (
  • Julie Orringer, New York Times , "Short Stories That Travel the World From a Deliciously Off-Kilter Perspective," 22 June 2018 His accessories were in the same vein as Holmes's: white low-tops and squared shades. (
  • John D. Harden, Houston Chronicle , "Officer injured during Santa Fe High School shooting discharged from hospital," 6 June 2018 Remove any veins and rinse shrimp, if needed, and pat dry thoroughly. (
  • Claire Saffitz, Bon Appetit , "Shrimp and No-Stir Grits," 14 May 2018 The bullet went through Diane's left rib cage and diaphragm, severed a vein and artery in her spleen, and then hit several organs including her left kidney and stomach. (
  • 2018. Varicose Vein Complications . (
  • You are more at risk if you are older, are female, have obesity, don't exercise, or have a family history of varicose veins. (
  • You may be at higher risk for weak vein walls due to increasing age or a family history of varicose veins. (
  • Deep vein thrombosis (DVT) is a condition in which a blood clot develops in the deep veins, most commonly in the lower extremities. (
  • It's a vein that has become stretched and swollen with blood. (
  • The arteries carry the blood from your heart out to your body, and the veins carry the blood from your body back to your heart. (
  • But the blood coming back from your body in the veins is darker because your body parts have used up the oxygen in the blood. (
  • To do their job, veins are full of valves that help keep the blood flowing in the right direction. (
  • When that happens, some blood can stay in a vein instead of moving forward like it should. (
  • So the veins have to work extra hard to get that blood back up to the heart, and some of those veins can wear out over time. (
  • Do varicose veins cause dangerous blood clots? (
  • Varicose veins do not increase your risk of dangerous blood clots. (
  • Blood clots can also form in varicose veins. (
  • Veins return blood back to the heart so that it can be recirculated to the rest of your body. (
  • There are valves in your veins that open to allow the blood to flow toward the heart. (
  • In some people, the valves may stop working correctly, allowing blood to flow back down into the veins. (
  • Blood then pools in the veins, causing them to swell even more. (
  • The veins in your legs are especially vulnerable because those veins have to work against gravity to get the blood back to your heart. (
  • Hormonal changes, pressure from the uterus, and increased blood volume make varicose veins common during pregnancy. (
  • Hepatic veins are blood vessels which transport the liver's deoxygenated blood and blood which has been filtered by the liver (this is blood from the pancreas, colon, small intestine, and stomach) to the inferior vena cava. (
  • veins are blood vessels that carry blood to the heart (apart from the pulmonary veins they contain blood which is poor of oxygen). (
  • The blood pressure in veins is lower than in arteries. (
  • Normally, one-way valves in your leg veins keep blood moving up toward the heart. (
  • When the valves do not work properly, they allow blood to back up into the vein. (
  • The vein swells from the blood that collects there, which causes varicose veins. (
  • However, if the flow of blood through veins becomes worse, problems such as leg swelling and pain, blood clots, and skin changes may be present. (
  • Your veins have one-way valves that help keep blood flowing toward your heart. (
  • If the valves are weak or damaged, blood can back up and pool in your veins. (
  • The swollen veins often ache or throb as blood courses through them. (
  • Compression helps the blood flow out of the veins and helps treat the pain. (
  • With no blood flowing through the veins, they eventually turn into scar tissue and wither away. (
  • a likely response is that they're blue because the blood in veins is deoxygenated. (
  • Still, when someone invariably responds to the veins-are-blue-because-they're-deoxygenated argument with the observation that "I've never seen blue blood before" one might then hear the slightly more sophisticated-sounding but increasingly far-fetched claim that we don't ever observe blue blood because it is immediately oxidized upon contact with air. (
  • So, not only is blood not blue, veins on their own aren't either. (
  • Using this set-up, they were able to demonstrate that the optical properties of skin and blood (combined with the influence of relative color perception) explain why veins in skin appear blue, despite not actually being blue. (
  • In the top side of the foot, adjacent dorsal digital veins join to form the dorsal metatarsal veins after carrying blood up to the small saphenous vein, communicate with the plantar digital veins in the clefts between the toes. (
  • vein, blood vessel that returns blood to the heart . (
  • Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. (
  • The oxygen-depleted blood passes from the capillaries to the venules (small veins). (
  • The venules feed into larger veins, which eventually merge into the superior and inferior vena cavae, large vessels that consolidate the blood flow from the head, neck, and arms and from the trunk and legs, respectively (see also circulatory system ). (
  • With such notable exceptions as the portal system, most veins contain valves, formed by pouches in their inner coats, that keep the blood from flowing backward. (
  • Veins are subject to inflammation, dilatation or enlargement (as in a varicose vein ), rupture, and blockage by blood clots ( thrombosis ). (
  • Veins carry blood back to the heart. (
  • If this valve weakens or becomes damaged, the blood may struggle to flow in the correct direction, and it can begin to pool inside the vein. (
  • Spider veins on the face are often the result of tiny blood vessels bursting. (
  • Varicose veins may also increase a person's risk of blood clots and circulation problems. (
  • Increased blood moving through the body in addition to the extra weight of the fetus places more pressure on leg veins during pregnancy. (
  • The calf muscles, which help support the veins in the legs and enable them to pump blood upward, may also lose some of their strength as a person ages. (
  • They operated on the baboons, using the TEVGs to provide arteriovenous grafts, which is where an artificial blood vessel is used to join an artery and vein, usually for the purpose of haemodialysis. (
  • With varicose veins, you have a vein that starts to have issue with blood flow. (
  • The valves of the vein does not close properly and the blood begins to flow in a backwards motion. (
  • The blood then begins to accumulate and the abnormal pressure will cause the vein to swell. (
  • National Heart, Lung and Blood Institute: "What Are Varicose Veins? (
  • National Heart, Lung and Blood Institute: "How Can Varicose Veins Be Prevented? (
  • To ease this process, the veins have little valves that snap shut behind the blood as it travels upwards. (
  • After arriving in hospital you are given an injection to thin the blood and help prevent deep vein thrombosis and the surgeon will mark your varicose veins, checking that you understand the operation and requesting that you sign a consent form allowing the surgery to go ahead. (
  • Firstly, the vein with the leaky valve - usually in the groin but can also be behind the knee - is tied so that blood cannot leak down. (
  • The core problem is that some degree of reversal of blood flow in the veins of the legs occurs, because of valve incompetency. (
  • When they are functioning normally, these valves prevent blood from flowing back away from the heart, but if their efficiency decreases some blood may stagnate in the vein, which then becomes swollen and twisted, causing aching and abnormal fatigue of the legs. (
  • When the valves in the veins do not function properly, the blood pools in the veins, especially when standing for long periods, resulting in these swollen veins. (
  • The goal of any treatment for varicose veins is to improve blood flow to the heart. (
  • The Pulmonary Veins, unlike other veins, contain arterial blood, which they return from the lungs to the left atrium of the heart. (
  • This vessel ramifies in the substance of the liver and there breaks up into a minute network of capillary-like vessels, from which the blood is conveyed by the hepatic veins to the inferior vena cava. (
  • The veins commence by minute plexuses which receive the blood from the capillaries. (
  • they return the blood from these structures, and communicate with the deep veins by perforating the deep fascia. (
  • for instance, the veins in the skull and vertebral canal, the hepatic veins in the liver, and the larger veins returning blood from the bones. (
  • Spider veins appear as thin, red lines or as weblike networks of blood vessels on the surface of the skin. (
  • Travelers with an increased risk of deep vein thrombosis (DVT), a blood clot forming in a vein, should discuss this risk with their healthcare provider and take action to decrease the risk. (
  • Spider veins appear as small clusters of blood vessels just under the surface of the skin. (
  • In addition to age, women with a family history of blood clots or spider veins are naturally predisposed to developing the condition. (
  • As a result, the blood will pool and create visible veins beneath the skin. (
  • Laser treatment directs pulses from a laser light to the spider veins, causing tiny blood clots to form. (
  • Thread veins are small, red or blue blood vessels which develop on the surface of the skin. (
  • Thread veins or spider veins (named due to their web like appearance) are formed when tiny blood vessels or capillaries become damaged. (
  • These capillaries are delicate blood vessels which join tiny veins and arteries again as part of the body's vascular system. (
  • Veins, which usually look blue, return blood to the heart . (
  • In the veins, blood can pool for a longer time due to weakened valves. (
  • When it is hot outside, the body sends extra blood to the surface veins to try to cool the body. (
  • As blood pressure rises, a person's veins will push up against the skin. (
  • Varicose veins make proper blood flow more difficult. (
  • However, in DVT, the blood clot occurs in a vein that is deeper in the arm. (
  • Following any of these procedures, the body will divert blood through the other healthy veins. (
  • The blast hit his right elbow, shredding veins and bone and sending blood spraying out onto the ground, according to reports. (
  • Our arteries carry oxygen rich blood to the cells of our bodies, while the veins are designed to pump oxygen poor blood back to the heart. (
  • This is accomplished through a series of one-way valves that do not allow blood to flow backwards into the vein. (
  • When someone suffers from varicose veins, the one-way valves of their veins do not close adequately, resulting in the inefficient transport of blood back to the heart. (
  • This causes the blood to flow backward within the vein, creating pressure and causing the vein to become swollen and distended. (
  • White oak bark can be used to help reduce inflammation of the veins as well as to tighten tissues and strengthen blood vessels. (
  • Varicose veins are caused by increased blood pressure in the veins. (
  • The blood moves towards the heart by one-way valves in the veins. (
  • When the valves become weakened or damaged, blood can collect in the veins. (
  • Sitting or standing for long periods can cause blood to pool in the leg veins, increasing the pressure within the veins. (
  • Deep vein thrombosis (DVT) is a serious condition with blood clots in the deep veins. (
  • However, with severe varicose veins, there is a small chance of developing blood clots in the deep veins. (
  • A type of vascular ultrasound done to check blood flow and the structure of the leg veins. (
  • These elastic stockings squeeze the veins and prevent blood from pooling. (
  • Varicose veins aren't typically considered a major health threat, but they are associated with a higher risk of leg swelling, blood clots, skin infections… What can we help you fin. (
  • Any vein that collects blood from one network of capillaries and transports it directly to a second capillary network in another region of the body, without returning to the heart. (
  • portal vein n. a vein that conveys blood from the stomach, intestines, spleen, and pancreas to the liver. (
  • An ultrasound probe is moved across the surface of your legs to obtain a colour image of your veins and blood supply. (
  • This procedure also enables the specialist to measure how quickly blood flows through your veins and in what direction. (
  • It is a simpler type of test compared to the ultrasound scan and uses sound waves to check the rate and direction of blood flow in your veins. (
  • As he/she does so the GP will grip the leg with the intention of preventing blood flow through the veins. (
  • The patient is asked to stand up and as he/she does so the GP will check to see how quickly the blood supply returns to these veins. (
  • In a normal situation this blood flow will take place quickly and easily: but if it takes a long time to refill then it may mean a faulty valve or weakened vein. (
  • Veins have the job of taking blood back to the heart. (
  • Blood moves from the superficial veins (found just under the skin) through perforator veins to the deep veins in the leg muscles. (
  • Because the leg veins are working against gravity, they have one-way valves inside them to prevent the backflow of blood. (
  • Your leg muscles also help blood to flow the right way - when they are used, as in walking, they act as a pump, sending the blood in the veins up to the heart. (
  • This means that blood can flow backwards and pool in the veins, causing them to swell and become varicose. (
  • A blood clot and inflammation in the varicose veins is another possible complication. (
  • If you've had a blood clot in one of the deep veins of the legs, the valves in that vein may be damaged. (
  • Your doctor may recommend having an ultrasound scan to look at the veins in your legs, check for blood clots and check whether the valves in the veins are functioning properly. (
  • Inside each vein there s a one-way valve that opens to let blood flow through and then shuts to keep blood from flowing backward. (
  • If the valves are weak or damaged, blood can back up and pool in your veins causing the veins to swell. (
  • The back flow of blood fills the veins and stretches the walls even more. (
  • You might also consider wearing pressure support stockings which can help prevent the pooling of blood in the veins. (
  • Once you get used to that, there is relief on varicose veins and improved circulation of blood through the brain, with its own benefits. (
  • Healthy veins flow blood to the heart . (
  • This causes blood to flow backwards and collect in the vein. (
  • The blood pressure increases in the vein and causes it to become stretched, swollen, and enlarged. (
  • This will help find problems with blood flow and the structure of the veins. (
  • They may also check if you are developing other more serious conditions like blood clots , damage to the veins, or ulcers. (
  • Blood will no longer flow through the vein and the other veins will make up for it. (
  • Veins are the blood vessels that carry blood to the heart. (
  • Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart. (
  • This differentiates the pulmonary veins from other veins in the body, which are used to carry deoxygenated blood from the rest of the body back to the heart. (
  • Each pulmonary vein is linked to a network of capillaries (small blood vessels) in the alveoli of each lung. (
  • The right pulmonary veins pass behind the right atrium and another large blood vessel known as the superior vena cava. (
  • This can cause blood to pool in your veins for a longer period of time. (
  • When you exercise , your blood pressure rises and your veins are pushed closer to your skin. (
  • Once your blood pressure drops to normal, your hand veins become less prominent. (
  • Superficial thrombophlebitis is an inflammation of a superficial vein (phlebitis) caused by a blood clot (thrombus). (
  • A bulging hand vein could be the result of a blood clot deep in the veins of the arm. (
  • Vein stripping and ligation close the vein that supplies blood to the targeted vein. (
  • In these procedures, after your doctor closes the targeted vein, the blood that used to run in the vein is automatically shifted. (
  • I'd asked about when I push on the one lymph node, that I could see the blood in the aforementioned vein on the left side of my neck swell with blood even when I stand. (
  • This site provides information about blood flow through the heart, differences between veins and arteries, and gives the functions of the circulatory system. (
  • The blood will certainly re-direct to other healthy veins when the affected vein is closed. (
  • The VenaSeal system is approved for patients with varicose veins of the legs that cause pain, blood clots or other symptoms. (
  • Although the condition is often dismissed as nothing more than a cosmetic nuisance, it can cause moderate pain and has been linked to the more serious side effect of deep vein thrombosis, or blood clots in the deep veins in the body. (
  • They followed this with a genome-wide scan of several hundred thousand people that identified 30 genetic locations, many of them involved in skeletal and blood vessel development, which further suggest tallness may be a direct cause of varicose veins. (
  • DVT (deep vein thrombosis) is a blood clot in a vein, usually the leg. (
  • DVT can be very serious because blood clots in your veins can break loose, travel through your bloodstream and get stuck in your lungs. (
  • The scan shows whether blood is flowing normally through the vein. (
  • This can be quite alarming for patients as a significant volume of blood can be lost in a short period of time as the blood flows backwards out of the vein. (
  • Simply raise the area and apply firm pressure to the veins, which is usually sufficient to stop the immediate flow of blood. (
  • In some cases, blood clots can form in varicose veins and lead to serious consequences such as pulmonary embolism. (
  • The development of blood clots in superficial veins is the most common and up to 1 in 5 of these may progress into a thrombus of the deep vein in the leg. (
  • Varicose veins are the large, swollen blood vessels found predominantly in the legs, but that can show up almost anywhere in the lower half of your body - even your rectum or vulva. (
  • It does, however, put extra pressure on your blood vessels - especially the veins in your legs, which have to work against gravity to push all that extra blood back up to your heart. (
  • Add to that weight gain and the pressure your burgeoning uterus puts on your pelvic blood vessels, and the vessel-relaxing effects of the extra progesterone your body is producing, and you have a recipe for varicose veins. (
  • Spider veins begin to develop when the heart pumps oxygen-filled blood through the circulatory system. (
  • The veins then return oxygen-poor blood from the body to the heart. (
  • Veins have valves made to prevent the blood from flowing backwards while it moves back up the legs. (
  • If the valves begin to leak, blood may seep back into the vein and begin to pool there. (
  • Why we get varicose veins, and fast ways to treat large, swollen blood vessels. (
  • Blood clots or blockage in the deep veins or perforating veins . (
  • Abnormal blood vessels between arteries and veins (arteriovenous fistulas). (
  • Veins in your legs carry blood up toward your heart. (
  • Your leg veins are supposed to have valves in them that keep the blood from backing up, but some people have veins that are too wide apart and cannot close properly and others are born without any valves. (
  • Support hose squeeze the legs and help to prevent blood from pooling in veins and distending them. (
  • When your leg muscles relax, the veins near them fill up with blood. (
  • When your leg muscles contract, they squeeze the veins near them and pump blood up toward your heart. (
  • The procedure leaves the veins in place but seals them off so they no longer contain blood and quickly shrink. (
  • Varicose veins are caused by faulty valves that allow blood to drain back down into the veins rather than to the heart. (
  • The new surgical procedures - known as endovenous ablation - leave the varicose veins in place but seal them off so that they no longer contain blood and quickly shrink. (
  • The blood flows through alternative, healthy veins back to the heart. (
  • Problems in the valves in your veins can prevent blood from flowing normally and cause varicose veins or spider veins. (
  • Veins then carry the blood from different parts of your body back to your heart. (
  • But, if the valves don't close correctly, blood can leak back into the lower part of the vein rather than going toward the heart. (
  • Over time, more blood gets stuck in the vein, building pressure that weakens the walls of the vein. (
  • Varicose veins and spider veins are caused by damaged valves in the veins that prevent blood from flowing normally. (
  • Sitting or standing for a long time, especially for more than 4 hours at a time, may make your veins work harder against gravity to pump blood to your heart. (
  • Varicose veins are prominent blood vessels in the legs. (
  • Laser vascular therapy (or laser vein treatment) is where a laser is used to heat up the blood inside the blood vessel. (
  • Veins exist as passageways to carry oxygenated blood around our bodies. (
  • Blood is pumped through veins by a combination of muscle contraction and valves. (
  • Systematic review and meta-analysis of randomised controlled trials comparing endovenous ablation and surgical intervention in patients with varicose vein. (
  • Comparison of ultrasound-guided endovenous laser ablation and radiofrequency for the varicose veins treatment: An updated meta-analysis. (
  • 200 patients with insufficient great saphenous veins will be randomized to either radiofrequency ablation or high ligation/stripping (open surgery). (
  • Current treatments for varicose veins include thermal ablation and surgery. (
  • Some women notice that spider veins disappear after pregnancy, but they can be permanent. (
  • Spider veins may be permanent or may disappear on their own after a period of months, especially if they are caused by pregnancy or certain medications. (
  • They are also known to form during pregnancy due to the dilating effect progesterone has on the veins. (
  • Varicose veins can affect some women during pregnancy as the baby grows and puts pressure on the uterus. (
  • It's an unfortunate fact that spider veins and varicose veins are more likely to develop during pregnancy. (
  • One of the most dreaded side effects of pregnancy , varicose veins do not strike every woman. (
  • They can occur at any time in a person's life, but tend to crop up during pregnancy when the weight of the uterus puts greater pressure on the veins in your lower body. (
  • Tips to cope with varicose veins during pregnancy. (
  • It's common to get varicose veins during pregnancy. (
  • One exception to this is varicose veins that develop during pregnancy, which generally get better within several months of the birth. (
  • Varicose veins during pregnancy are relatively common, and usually painless and harmless - just another occupational hazard of being a mom-to-be. (
  • When do varicose veins start to appear during pregnancy? (
  • Varicose veins can develop anytime during your pregnancy, but they tend to get larger and more pronounced as you get bigger. (
  • Heavy lifting or straining on the toilet - if you're feeling that other fun pregnancy symptom, constipation - can add to vein visibility. (
  • A balanced pregnancy diet can help keep your veins healthy. (
  • Some people believe that wearing compression socks, exercising and elevating your feet can all prevent varicose veins, but they're not surefire ways to avoid this particular pregnancy symptom. (
  • Spider veins can also occur as a result of hormonal changes, during pregnancy, prolonged periods of sitting or standing, and extreme weight gain. (
  • The exception to this rule is veins that develop during pregnancy. (
  • Pregnancy, older age, and obesity can increase your risk of varicose veins and spider veins. (
  • During pregnancy , varicose veins can happen around the inner thigh, lower pelvic area, and buttocks. (
  • These symptoms are:  Discoloration above the ankle  Bleeding from a superficial vein (after trauma)  Skin ulceration (open sores in the area)  Rashes or skin condition near the affected area  Tissue hardening above the ankle area If you experience any of these severe symptoms, you need to visit a physician immediately. (
  • In the legs, spider veins can occur when the valves inside the veins stop working properly. (
  • This is a really common problem - thread veins - as they are often called seem to occur out of the blue and without any apparent cause. (
  • Superficial leg veins, sometimes called "spider veins" occur when tiny veins congregate below the surface of the skin, causing red, blue or purple discolorations. (
  • Varicose veins are more common in the legs, but they can occur in the hands as well. (
  • Varicose veins occur when a vein becomes enlarged and gnarled up. (
  • Skin changes can also occur, including discolouration of the skin over the veins. (
  • It can occur due to an injury of a vein, like after having an IV catheter inserted. (
  • The investigators found that clay veins normally occur in more stable, less rapidly subsiding coal basins. (
  • In addition to the several side effects of varicose veins, there are several complications that may occur. (
  • Varicose veins are enlarged veins that usually occur just under the skin (superficial veins). (
  • But that doesn't occur immediately, and so in the interim a single earthquake can produce an instant (albeit tiny) gold vein. (
  • People sometimes also refer to them as thread veins. (
  • How do thread veins develop? (
  • Why are thread veins confused with varicose veins? (
  • Thread veins are often associated with varicose veins as it possible to develop both of these. (
  • But you can get thread veins without ever developing varicose veins. (
  • Unfortunately, thread veins along with varicose veins are a reminder of the ageing process which reflects the many years you have spent on your feet. (
  • There is a greater chance of you developing thread veins if you are occupied in a role which requires you to spend a large part of the day on your feet. (
  • This is discussed in more detail in our causes of thread veins section. (
  • Thread veins are small, red, blue or purple coloured veins which look like the branch of a tree and lie just under the surface of the skin. (
  • How common are thread veins? (
  • They tend to affect more women than men: around 50% of women will develop thread veins in their lifetime. (
  • Thread veins and varicose veins are amongst the most common vascular problems in the UK. (
  • Thread veins may not look very pleasant but they do not usually cause any health problems. (
  • In the last year I have been suffering from thread veins in my legs, which are becoming more and more noticeable and I have also become plagued with cellulite . (
  • Thread veins are a difficult problem and at your age I can understand your concern. (
  • It contains a highly concentrated botanical complex, active plant extracts, anti-aging peptides, vitamins and other specially selected ingredients to help reduce the appearance of varicose, spider and thread veins on face and body. (
  • Spider veins, or thread veins, are smaller than varicose veins. (
  • Varicose veins are a cosmetic concern for many people, appearing as visible blue or purple veins under the skin or twisted, swollen veins that are like cords on the legs. (
  • Hia i was wondering if you could help me, I've got a few faint bluish kind of colour spider veins on my forehead and was wondering if vitamin k creme is actually effective in fading these veins? (
  • Most people recognize varicose veins because of their knotted, twisted, swollen and often bluish of these veins. (
  • Varicose veins look bluish and bulging underneath the skin. (
  • Varicose veins are a widespread condition seen as a purple or bluish protruding veins. (
  • Most people identify varicose veins by the appearance of twisted, swollen, bluish veins just beneath the skin. (
  • This weakens the walls of the vein. (
  • Varicose veins can be painful. (
  • Varicose veins are painful. (
  • If varicose veins are painful or you don't like the way they look, your doctor may recommend procedures to remove them. (
  • If you are self-conscious about your spider veins, or if they become painful or tender, see your doctor about the possibility of treatment. (
  • The condition can cause gnarled, enlarged, and possibly painful veins. (
  • Varicose veins can become twisty, enlarged, and painful. (
  • Spider veins are often associated with painful aching or cramping in the legs. (
  • FALMOUTH - When Laurette Poulin had surgery to remove painful varicose veins in her left leg 10 years ago, she spent two days in a hospital and three weeks recovering at home. (
  • This week, it took a surgeon in Falmouth about 20 minutes to seal two swollen and painful veins in her right leg. (
  • Along with the cosmetic impact, varicose veins can be painful and debilitating. (
  • Men with varicose veins tend to visit their GP or a specialist at a later stage of the condition than their female counterparts- usually when the veins are very painful or when they are starting to cause skin damage. (
  • This makes the vein swell up, and that swollen vein is a varicose vein. (
  • As a result, the veins get bigger, swell, and often get twisted as they try to squeeze into their normal space. (
  • If a hand infection, trauma, or autoimmune disease causes a vein to become inflamed , the vein could swell. (
  • The outer layer of the choroid (lamina vasculosa) consists, in part, of the larger branches of the short ciliary arteries which run forward between the veins, before they bend inward to end in the capillaries, but is formed principally of veins, named, from their arrangement, the vorticose veins. (
  • It includes 8 times more active natural botanicals to help diminish the appearance of veins, spider veins, red blotches and broken capillaries for healthier and younger looking skin. (
  • Things that put pressure on your legs and feet - like being overweight or standing for a long time every day without exercise - can also cause varicose veins. (
  • Increased pressure in the veins may cause varicose veins. (
  • Occasionally, people with varicose veins develop ulcers on the legs, usually near the ankles. (
  • Varicose veins develop when the small valves inside the veins stop working. (
  • Once varicose veins develop, the measures above can help prevent them from getting worse and help with discomfort. (
  • Spider veins and varicose veins develop when pressure overwhelms weakened or damaged vessels, causing them to abnormally dilate and expand. (
  • Rarely, patients with varicose veins experience a significant knock to their legs, resulting in bleeding from the ruptured vein. (
  • Your doctor often will be able to diagnose varicose veins simply by examining your legs. (
  • Doctors often diagnose varicose veins from a physical exam. (
  • Doctors can often diagnose varicose veins by simply examining the veins in the legs. (
  • If your symptoms don't get any better with at-home care, or if you don't like the way varicose veins look, there are more invasive treatment options available. (
  • Depending on their severity, varicose veins can cause a variety of symptoms. (
  • Spider veins usually do not cause any symptoms, but rarely may cause a mild dull discomfort or burning sensation. (
  • What are the symptoms of varicose veins? (
  • The following are the most common symptoms of varicose veins. (
  • The symptoms of varicose veins may resemble other medical conditions or problems. (
  • If you have mild to moderate varicose veins, elevating your legs can help reduce leg swelling and relieve other symptoms. (
  • You will learn about the varicose veins, its symptoms, what causes this condition, and how it can be diagnosed. (
  • What your GP will do is to ask you about the severity and frequency of your symptoms: when are your varicose veins most likely to hurt and how often? (
  • While the only downside of varicose veins for some people is their appearance, other people have symptoms such as aching legs and skin irritation. (
  • Many people with varicose veins find that their symptoms are better in the morning. (
  • Varicose veins may be visible only after the veins have stretched, but they may accompany other symptoms. (
  • They will take your symptoms and personal and family medical history and they will examine your veins. (
  • However, there are some varicose vein treatments and things you can do at home to improve your symptoms. (
  • Home treatment may be all you need to ease your symptoms and keep the varicose veins from getting worse. (
  • You may not have symptoms with varicose veins. (
  • Polidocanol injectable foam "provides US physicians with the only approved comprehensive therapy to improve symptoms and appearance for a wide range of varicose veins, including incompetent GSV, accessory saphenous veins and visible varicosities of the GSV system both above and below the knee," BTG said. (
  • Some women do not have any symptoms with varicose veins and spider veins. (
  • The Deep Veins accompany the arteries, and are usually enclosed in the same sheaths with those vessels. (
  • Varicose veins form as a result of the valves in these vessels not functioning properly. (
  • Initially there are three vessels for the right lung, but the veins from the middle and upper lobes of the right lung tend to fuse together to form two right pulmonary veins. (
  • This increased pressure results in further dilation of vessels or the development and extension of more varicose veins and spider veins. (
  • If veins are left untreated, damaged vessels can cause chronic skin changes, which may never completely go away. (
  • The pancreatic veins consist of several small vessels which drain the body and tail of the pancreas, and open into the trunk of the great pancreatic vein. (
  • Varicose veins tend to run in families. (
  • Varicose veins tend to get worse over time. (
  • The type of people who develop spider veins tend to be older women . (
  • Spider veins tend to affect women more often than men. (
  • The valves in veins tend to get weaker over time. (
  • Varicose veins tend to develop only on the legs. (
  • However, without treatment, varicose veins do tend to get worse with time. (
  • Appearing primarily on the face and legs, spider veins resemble the branches of a tree or spider web and tend to develop more often on women than men. (
  • If you do not like the way your legs look because of varicose veins, you can opt for treatments that should cause the vein to fade or even disappear. (
  • A range of treatments can remove spider veins or reduce their appearance. (
  • There are several treatments that can fix varicose veins. (
  • Mayo Clinic researchers study diagnostic tests and potential treatments for varicose veins and other vascular diseases. (
  • Each subclavian vein is a continuation of the axillary vein and runs from the outer border of the first rib to the medial border of anterior scalene muscle . (
  • the shoulder to produce the axillary vein. (
  • Taking self-care steps can help relieve achiness and pain, keep varicose veins from getting worse, and prevent more serious problems. (
  • Exercising, losing weight, elevating your legs when resting, and not crossing them when sitting can help keep varicose veins from getting worse. (
  • Erica Gonzales, Harper's BAZAAR , "The Game of Thrones Prequel Announces Eight More Stars and a Director," 8 Jan. 2019 These stories, in any case, are irresistible, delivering a portrait of contemporary relationships that, although bleak, is shot through with veins of real connection. (
  • If the varicose veins are larger, longer, or more widespread on the leg, your provider will suggest a procedure using such a laser or radiofrequency , which can be done in the provider's office or clinic. (
  • A small fiber is inserted into the vein through a catheter and the laser or radiofrequency energy delivers heat that destroys the wall of the vein. (
  • Vein surgery has evolved to use mostly lasers or radiofrequency to close the leaky vein by burning it. (
  • 85% of vein patients are eligible for laser or radiofrequency treatment. (
  • Right subclavian vein visible at bottom left, left subclavian vein visible at bottom right. (
  • Subclavian vein labeled at right, third from top. (
  • The subclavian vein is a paired large vein , one on either side of the body. (
  • The subclavian vein follows the subclavian artery and is separated from the subclavian artery by the insertion of anterior scalene . (
  • Thus, the subclavian vein lies anterior to the anterior scalene while the subclavian artery lies posterior to the anterior scalene (and anterior to the middle scalene). (
  • The thoracic duct drains into the left subclavian vein, near its junction with the left internal jugular vein . (
  • The right lymphatic duct drains its lymph into the junction of the right internal jugular vein, and the right subclavian vein. (
  • The larger arteries such as the axillary, subclavian, popliteal, and femoral have usually only one accompanying vein. (
  • It's called the circulatory system, and the roads are arteries and veins. (
  • Our circulatory system is made up of a complex web of arteries and veins. (
  • A deep vein is a vein that is deep in the body. (
  • Occlusion of a deep vein can be life-threatening and is most often caused by thrombosis . (
  • Occlusion of a deep vein by thrombosis is called deep vein thrombosis . (
  • Deep vein thrombosis (DVT) is similar to superficial thrombophlebitis. (
  • The third technique, deep-vein mining, was the most difficult and dangerous. (
  • This report describes the characteristics of deep-vein mining, as well as the special problems involved. (
  • Have you experienced deep vein thrombosis? (
  • Having previously had a deep vein thrombosis (DVT) also seems to play a role in the development of varicose veins in some people. (
  • Deep vein thrombosis (DVT). (
  • The analysis used machine learning to search Biobank participants' data for patterns linking varicose veins with other traits and confirmed that well-known risk factors - including being older, female, overweight or pregnant, or having a history of deep vein thrombosis - are all associated with varicose veins. (
  • The complication vary greatly in severity but some effects have the potential to be fatal, such as the possibility of pulmonary embolism occurring following deep vein thrombosis . (
  • This is a distinct condition from deep vein thrombosis, however, and is markedly less severe and may not always require treatment. (
  • A research published in the Canadian Medical Association Journal showed that a disciplined exercise program designed to increase leg strength has a positive impact on post-thrombotic syndrome, a chronic complication of deep vein thrombosis. (
  • A pilot trial showed that a six-month exercise training program designed to increase leg strength, leg flexibility and overall fitness may improve post-thrombotic syndrome, a frequent, chronic complication of deep vein thrombosis, states a research article in CMAJ. (
  • You might need further tests if you plan to have treatment or if you have signs of a deep vein problem. (
  • If anticoagulant medicines are not suitable, you may have a filter put into a large vein - the vena cava - in your tummy. (
  • The veins often show up on the legs, ankles, and feet because those body parts are farthest from the heart. (
  • People who have varicose veins might also have achy legs that feel heavy. (
  • Varicose veins are most commonly found on the legs or feet, but they can also be found on the groin. (
  • Your legs may ache or throb where there are varicose veins. (
  • These clots form in veins deep inside your legs or arms. (
  • This is why most varicose veins are found in the legs. (
  • Hi Doc, I have been noticing a lot of veins popping up on me, specifically my legs. (
  • Spider veins-or telangiectasia , as they're called scientifically-are enlarged veins that grow close to the skin, usually in the legs. (
  • Spider veins are small, damaged veins that can appear on the surface of the legs or face. (
  • In the legs, both conditions result from having weakened or damaged valves in the veins. (
  • The abnormal swelling of veins in the legs is a symptom of a generally poor circulatory system, with a loss of elasticity in the walls of the veins and particularly in their valves. (
  • A Varicose veins usually develop in the legs. (
  • Spider veins, a mild form of varicose veins, typically appear on the legs and feet. (
  • Spider veins can affect the legs and also the face . (
  • If you have spider veins, you might help to avoid developing more of them by not standing still or crossing your legs for prolonged periods of time and by wearing support stockings. (
  • These veins develop on the face, legs and nose and are sometimes confused with varicose veins. (
  • Because they are associated with lack of circulation, the formation of varicose veins is more common in people who sit or stand in one position for long periods of time, habitually sit with their legs crossed and those who lack regular exercise . (
  • Varicose veins can happen anywhere in the body, but are more common in the legs. (
  • Varicose veins are a common condition amongst women where veins on the legs appear swollen and are a purple-red color. (
  • I got weird veins in my legs when pregnant with my first. (
  • Your doctor will want to look at the veins in your legs when you are standing up, and examine the skin of your legs too. (
  • This is what causes the spidery appearance of the veins on your legs. (
  • Varicose veins are swollen, twisted veins that can be seen just under the surface of the skin, usually in the legs. (
  • Surgery on the legs, family history, lack of movement, smoking and hormone therapy are also risk factors for varicose veins, the study confirmed. (
  • One kind of tight that can feel helpful: support hose, which can counteract the downward pressure of your belly and give the veins in your legs a little extra upward push. (
  • We discuss the health effects of crossing your legs, a seemingly mundane action that may or may not have health implications for your veins, heart, and back. (
  • Varicose veins are caused by weakened valves and veins in your legs. (
  • Have you had to wear long pants or skirts during the summer just to hide embarrassing spider veins or varicose veins on your legs? (
  • The condition often causes lumpy, swollen and discolored veins, usually in the patient's legs. (
  • Varicose veins and spider veins are swollen, twisted veins that usually appear on the legs. (
  • Varicose veins are often on the thighs, the backs and fronts of the calves, or the inside of the legs near the ankles and feet. (
  • Spider veins are usually found on the legs or the face. (
  • The typical complaints due to varicose veins include aching and tired legs. (
  • Ligation and stripping to tie off and remove the vein. (
  • The exact cause of varicose veins is not known. (
  • Researchers don't know the exact cause of varicose veins, but certain things can lead to or increase your chances of developing varicose veins. (
  • Phlebitis is inflammation of the veins. (
  • Phlebitis, also known as thrombophlebitis, refers to inflammation of the veins that may be accompanied by the formation of hard and tender clots. (
  • During this treatment, a small catheter is used to collapse and seal spider veins. (
  • This process is done by inserting a catheter into the infected vein and making use of heat, leading to the collagen in the vein wall to reduce and close the vein. (
  • The system includes syringes, guide wire and a catheter which is used to inject the liquid that seals the diseased veins. (
  • Dr. John Braxton inserts a closure catheter into a varicose vein in Laurette Poulin's right leg during a closure procedure last week. (
  • The closure catheter uses radio frequency to generate heat, closing the vein. (
  • Maine Heart Surgical Associates uses a VNUS Closure radio-frequency catheter to heat up the inside of the vein so that it closes and forms a seal. (
  • She could not see the surgery, but Braxton and ultrasound technologist JoAnn Rego talked to her throughout, occasionally warning her that she might feel a pinch as the catheter was placed into the veins. (
  • The walls of a vein are formed of three layers like the walls of an artery. (
  • This may weaken the walls of the veins and damage the valves. (
  • If the walls of leg veins lose their elasticity and weaken, the valves can stop functioning properly. (
  • When the walls of the veins are weak, they lose their normal elasticity. (
  • This makes the walls of the veins longer and wider and causes the flaps of the valves to separate. (
  • This may be because female hormones relax the walls of the veins, which may cause the valves to leak. (
  • You may be born with defective valves or weak walls in your veins, or you may develop them later in life. (
  • You can't prevent varicose veins, but there are certain steps you can take to ease soreness and stop them from getting worse. (
  • Can I Prevent Varicose Veins? (
  • Generally, people can help prevent varicose veins by maintaining a healthy body weight and exercising to improve muscle strength and circulation, Wells advised. (
  • This chapter will highlight these principles as well as provide a step-by-step guide of the common interventional treatment modalities for varicose veins. (
  • Will varicose veins go away with treatment? (
  • Varicose veins: surgical treatment. (
  • We also cover the treatment and prevention of spider veins. (
  • Without treatment, you are subject to dilated veins that are twisted and swollen. (
  • Spider veins do not require treatment. (
  • If you decide on cosmetic treatment for your spider veins, you can expect a 50% to 90% improvement. (
  • For people looking to get rid of bulging hand veins, some treatment options are available. (
  • The treatment of bulging hand veins depends on the cause. (
  • Most bulging hand veins do not require treatment at all. (
  • The treatment options for bulging veins for cosmetic reasons are similar to those for varicose veins. (
  • What is the treatment for varicose veins? (
  • However, varicose veins may sometimes worsen without treatment. (
  • Here are 8 things you need to know about varicose veins including your risk and treatment options. (
  • Recent advances in vein treatment have created many simple, non-invasive treatment options that can treat these exact vein problems. (
  • The doctor will examine your veins and help you determine which treatment options are right for you. (
  • Don't wait: download Vein Consults for free and learn about the possible treatment options available to you. (
  • Many people don't need any specific treatment for varicose veins other than self-care measures. (
  • Most varicose veins are not serious and may not need treatment. (
  • Scleropathy is a common varicose vein treatment where your doctor injects saline or another substance into your vein. (
  • Learn what could be causing bulging hand veins and your treatment options. (
  • In most cases, treatment of bulging hand veins has to do with cosmetics rather than health. (
  • For some persons, the veins trigger pain and aching and may trigger severe complications if left without treatment. (
  • The most typical initial treatment plans for varicose veins when you visit a vein clinic new jersey incorporate a number of self-help strategies. (
  • This treatment, along with other varicose vein methods, is typically quite effective. (
  • Although findings of this study may not immediately impact patient care, understanding these factors is the first step toward developing effective interventions for prevention and treatment of varicose veins," Wells, who wrote an accompanying editorial, said by email. (
  • A newer treatment involves breaking up and sucking out the clot through a small tube in the vein. (
  • During this treatment a concentrated saline solution is injected through a small needle into the spider vein. (
  • With IPL therapy treatment, ablative doses of thermal energy are relayed to the vessel, causing the veins to shrink in size. (
  • Less commonly, varicose veins may be a sign of a more serious problem that may sometimes need treatment. (
  • Again, veins are typically considered a progressive condition that without early treatment, get worse over time. (
  • The US Food and Drug Administration (FDA) has approved polidocanol injectable foam ( Varithena , BTG) for the treatment of incompetent veins and visible varicosities of the great saphenous vein (GSV) system, British pharmaceutical company BTG announced today. (
  • Cite this: FDA OKs New Minimally Invasive Treatment for Varicose Veins - Medscape - Nov 26, 2013. (
  • The VenaCure Endovenous Laser Treatment for varicose veins is performing using a thin laser fiber that directs energy to the inside of faulty veins. (
  • Laser Treatment for Spider Veins. (
  • I recently wrote on popular questions about vein treatment , but am painfully aware that often the people seeking out healthcare answers are women. (
  • Hemorrhoids are a type of varicose vein. (
  • Spider veins, a milder type of varicose veins, are smaller than varicose veins and often look like a sunburst or "spider web. (
  • A few tips to reduce the chance of spider veins from developing in the first place include wearing a sunscreen with a minimum spf 15 to protect your skin from the rays of the sun and to limit spider veins on the face. (