Angioplasty, Balloon: Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.Angioplasty, Balloon, Coronary: Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.Angioplasty: Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.Angioplasty, Laser: A technique utilizing a laser coupled to a catheter which is used in the dilatation of occluded blood vessels. This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the laser energy directly ablates the occlusion. One form of the latter approach uses an EXCIMER LASER which creates microscopically precise cuts without thermal injury. When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty (ANGIOPLASTY, BALLOON, LASER-ASSISTED).Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Recurrence: The return of a sign, symptom, or disease after a remission.Constriction, Pathologic: The condition of an anatomical structure's being constricted beyond normal dimensions.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Follow-Up Studies: 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.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).Arterial Occlusive Diseases: Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.Iliac Artery: Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.Vascular Patency: The degree to which BLOOD VESSELS are not blocked or obstructed.Atherectomy, Coronary: Percutaneous transluminal procedure for removing atheromatous plaque from the coronary arteries. Both directional (for removing focal atheromas) and rotational (for removing concentric atheromatous plaque) atherectomy devices have been used.Coronary Vessels: The veins and arteries of the HEART.Femoral Artery: The main artery of the thigh, a continuation of the external iliac artery.Graft Occlusion, Vascular: Obstruction of flow in biological or prosthetic vascular grafts.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Popliteal Artery: The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.Coronary Artery Bypass: Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.Angiography: Radiography of blood vessels after injection of a contrast medium.Angina Pectoris: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.Thrombolytic Therapy: Use of infusions of FIBRINOLYTIC AGENTS to destroy or dissolve thrombi in blood vessels or bypass grafts.Prospective Studies: 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.Carotid Stenosis: Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)Tunica Intima: The innermost layer of an artery or vein, made up of one layer of endothelial cells and supported by an internal elastic lamina.Aortic Coarctation: A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.Ischemia: 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.Renal Artery Obstruction: Narrowing or occlusion of the RENAL ARTERY or arteries. It is due usually to ATHEROSCLEROSIS; FIBROMUSCULAR DYSPLASIA; THROMBOSIS; EMBOLISM, or external pressure. The reduced renal perfusion can lead to renovascular hypertension (HYPERTENSION, RENOVASCULAR).Retreatment: The therapy of the same disease in a patient, with the same agent or procedure repeated after initial treatment, or with an additional or alternate measure or follow-up. It does not include therapy which requires more than one administration of a therapeutic agent or regimen. Retreatment is often used with reference to a different modality when the original one was inadequate, harmful, or unsuccessful.Retrospective Studies: 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.Atherectomy: Endovascular procedure in which atheromatous plaque is excised by a cutting or rotating catheter. It differs from balloon and laser angioplasty procedures which enlarge vessels by dilation but frequently do not remove much plaque. If the plaque is removed by surgical excision under general anesthesia rather than by an endovascular procedure through a catheter, it is called ENDARTERECTOMY.Catheterization: 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.Coronary Restenosis: Recurrent narrowing or constriction of a coronary artery following surgical procedures performed to alleviate a prior obstruction.Intermittent Claudication: A symptom complex characterized by pain and weakness in SKELETAL MUSCLE group associated with exercise, such as leg pain and weakness brought on by walking. Such muscle limpness disappears after a brief rest and is often relates to arterial STENOSIS; muscle ISCHEMIA; and accumulation of LACTATE.Coronary Circulation: The circulation of blood through the CORONARY VESSELS of the HEART.Platelet Aggregation Inhibitors: Drugs or agents which antagonize or impair any mechanism leading to blood platelet aggregation, whether during the phases of activation and shape change or following the dense-granule release reaction and stimulation of the prostaglandin-thromboxane system.Leg: The inferior part of the lower extremity between the KNEE and the ANKLE.Ultrasonography, Interventional: 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.Endarterectomy, Carotid: The excision of the thickened, atheromatous tunica intima of a carotid artery.Beta Particles: High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.Hirudin Therapy: Use of HIRUDINS as an anticoagulant in the treatment of cardiological and hematological disorders.Coronary Thrombosis: Coagulation of blood in any of the CORONARY VESSELS. The presence of a blood clot (THROMBUS) often leads to MYOCARDIAL INFARCTION.Angina, Unstable: Precordial pain at rest, which may precede a MYOCARDIAL INFARCTION.Intracranial Arteriosclerosis: Vascular diseases characterized by thickening and hardening of the walls of ARTERIES inside the SKULL. There are three subtypes: (1) atherosclerosis with fatty deposits in the ARTERIAL INTIMA; (2) Monckeberg's sclerosis with calcium deposits in the media and (3) arteriolosclerosis involving the small caliber arteries. Clinical signs include HEADACHE; CONFUSION; transient blindness (AMAUROSIS FUGAX); speech impairment; and HEMIPARESIS.Myocardial Revascularization: The restoration of blood supply to the myocardium. (From Dorland, 28th ed)Reoperation: A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.Peripheral Vascular Diseases: Pathological processes involving any one of the BLOOD VESSELS in the vasculature outside the HEART.Limb Salvage: An alternative to amputation in patients with neoplasms, ischemia, fractures, and other limb-threatening conditions. Generally, sophisticated surgical procedures such as vascular surgery and reconstruction are used to salvage diseased limbs.Arteriosclerosis: Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.Postoperative Complications: 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.Hyperplasia: 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.Ultrasonography, Doppler, Duplex: 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.Myocardial Reperfusion: Generally, restoration of blood supply to heart tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. Reperfusion can be induced to treat ischemia. Methods include chemical dissolution of an occluding thrombus, administration of vasodilator drugs, angioplasty, catheterization, and artery bypass graft surgery. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing MYOCARDIAL REPERFUSION INJURY.Hypertension, Renovascular: Hypertension due to RENAL ARTERY OBSTRUCTION or compression.Fibrinolytic Agents: Fibrinolysin or agents that convert plasminogen to FIBRINOLYSIN.Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Immunoglobulin Fab Fragments: Univalent antigen-binding fragments composed of one entire IMMUNOGLOBULIN LIGHT CHAIN and the amino terminal end of one of the IMMUNOGLOBULIN HEAVY CHAINS from the hinge region, linked to each other by disulfide bonds. Fab contains the IMMUNOGLOBULIN VARIABLE REGIONS, which are part of the antigen-binding site, and the first IMMUNOGLOBULIN CONSTANT REGIONS. This fragment can be obtained by digestion of immunoglobulins with the proteolytic enzyme PAPAIN.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.Amputation: The removal of a limb or other appendage or outgrowth of the body. (Dorland, 28th ed)Arteriovenous Shunt, Surgical: Surgical shunt allowing direct passage of blood from an artery to a vein. (From Dorland, 28th ed)Electrocardiography: Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.Treatment Failure: A measure of the quality of health care by assessment of unsuccessful results of management and procedures used in combating disease, in individual cases or series.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Coronary Stenosis: Narrowing or constriction of a coronary artery.Saphenous Vein: The vein which drains the foot and leg.Lower Extremity: The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.Carotid Artery Injuries: Damages to the CAROTID ARTERIES caused either by blunt force or penetrating trauma, such as CRANIOCEREBRAL TRAUMA; THORACIC INJURIES; and NECK INJURIES. Damaged carotid arteries can lead to CAROTID ARTERY THROMBOSIS; CAROTID-CAVERNOUS SINUS FISTULA; pseudoaneurysm formation; and INTERNAL CAROTID ARTERY DISSECTION. (From Am J Forensic Med Pathol 1997, 18:251; J Trauma 1994, 37:473)Fibromuscular Dysplasia: An idiopathic, segmental, nonatheromatous disease of the musculature of arterial walls, leading to STENOSIS of small and medium-sized arteries. There is true proliferation of SMOOTH MUSCLE CELLS and fibrous tissue. Fibromuscular dysplasia lesions are smooth stenosis and occur most often in the renal and carotid arteries. They may also occur in other peripheral arteries of the extremity.Heparin: A highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic acid with sulfaminic bridges. The molecular weight ranges from six to twenty thousand. Heparin occurs in and is obtained from liver, lung, mast cells, etc., of vertebrates. Its function is unknown, but it is used to prevent blood clotting in vivo and vitro, in the form of many different salts.Cineradiography: Motion picture study of successive images appearing on a fluoroscopic screen.Blood Vessel Prosthesis Implantation: Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.Angioscopy: Endoscopic examination, therapy or surgery performed on the interior of blood vessels.Carotid Arteries: 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.Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Feasibility Studies: Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.Thrombosis: Formation and development of a thrombus or blood clot in the blood vessel.Embolism: Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.Renal Artery: A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.Muscle, Smooth, Vascular: The nonstriated involuntary muscle tissue of blood vessels.Collateral Circulation: Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels.Subclavian Steal Syndrome: A clinically significant reduction in blood supply to the BRAIN STEM and CEREBELLUM (i.e., VERTEBROBASILAR INSUFFICIENCY) resulting from reversal of blood flow through the VERTEBRAL ARTERY from occlusion or stenosis of the proximal subclavian or brachiocephalic artery. Common symptoms include VERTIGO; SYNCOPE; and INTERMITTENT CLAUDICATION of the involved upper extremity. Subclavian steal may also occur in asymptomatic individuals. (From J Cardiovasc Surg 1994;35(1):11-4; Acta Neurol Scand 1994;90(3):174-8)Tibial Arteries: The anterior and posterior arteries created at the bifurcation of the popliteal artery. The anterior tibial artery begins at the lower border of the popliteus muscle and lies along the tibia at the distal part of the leg to surface superficially anterior to the ankle joint. Its branches are distributed throughout the leg, ankle, and foot. The posterior tibial artery begins at the lower border of the popliteus muscle, lies behind the tibia in the lower part of its course, and is found situated between the medial malleolus and the medial process of the calcaneal tuberosity. Its branches are distributed throughout the leg and foot.Vertebrobasilar Insufficiency: Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.Hospital Mortality: A vital statistic measuring or recording the rate of death from any cause in hospitalized populations.Endarterectomy: Surgical excision, performed under general anesthesia, of the atheromatous tunica intima of an artery. When reconstruction of an artery is performed as an endovascular procedure through a catheter, it is called ATHERECTOMY.Life Tables: Summarizing techniques used to describe the pattern of mortality and survival in populations. These methods can be applied to the study not only of death, but also of any defined endpoint such as the onset of disease or the occurrence of disease complications.Anticoagulants: Agents that prevent clotting.Polytetrafluoroethylene: 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.Thrombectomy: 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.Blood Vessel Prosthesis: Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.Vascular Surgical Procedures: Operative procedures for the treatment of vascular disorders.Vascular Access Devices: Devices to be inserted into veins or arteries for the purpose of carrying fluids into or from a peripheral or central vascular location. They may include component parts such as catheters, ports, reservoirs, and valves. They may be left in place temporarily for therapeutic or diagnostic purposes.Patient Transfer: Interfacility or intrahospital transfer of patients. Intrahospital transfer is usually to obtain a specific kind of care and interfacility transfer is usually for economic reasons as well as for the type of care provided.Angiography, Digital Subtraction: A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.Cineangiography: Motion pictures of the passage of contrast medium through blood vessels.Emergencies: Situations or conditions requiring immediate intervention to avoid serious adverse results.Survival Analysis: A class of statistical procedures for estimating the survival function (function of time, starting with a population 100% well at a given time and providing the percentage of the population still well at later times). The survival analysis is then used for making inferences about the effects of treatments, prognostic factors, exposures, and other covariates on the function.Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Carotid Artery, Internal: Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Risk Assessment: The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5)Hirudins: Single-chain polypeptides of about 65 amino acids (7 kDa) from LEECHES that have a neutral hydrophobic N terminus, an acidic hydrophilic C terminus, and a compact, hydrophobic core region. Recombinant hirudins lack tyr-63 sulfation and are referred to as 'desulfato-hirudins'. They form a stable non-covalent complex with ALPHA-THROMBIN, thereby abolishing its ability to cleave FIBRINOGEN.Combined Modality Therapy: The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used.Equipment Design: Methods of creating machines and devices.Patient Selection: Criteria and standards used for the determination of the appropriateness of the inclusion of patients with specific conditions in proposed treatment plans and the criteria used for the inclusion of subjects in various clinical trials and other research protocols.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Survival Rate: The proportion of survivors in a group, e.g., of patients, studied and followed over a period, or the proportion of persons in a specified group alive at the beginning of a time interval who survive to the end of the interval. It is often studied using life table methods.Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.Platelet Glycoprotein GPIIb-IIIa Complex: Platelet membrane glycoprotein complex important for platelet adhesion and aggregation. It is an integrin complex containing INTEGRIN ALPHAIIB and INTEGRIN BETA3 which recognizes the arginine-glycine-aspartic acid (RGD) sequence present on several adhesive proteins. As such, it is a receptor for FIBRINOGEN; VON WILLEBRAND FACTOR; FIBRONECTIN; VITRONECTIN; and THROMBOSPONDINS. A deficiency of GPIIb-IIIa results in GLANZMANN THROMBASTHENIA.Carotid Artery, Common: The two principal arteries supplying the structures of the head and neck. They ascend in the neck, one on each side, and at the level of the upper border of the thyroid cartilage, each divides into two branches, the external (CAROTID ARTERY, EXTERNAL) and internal (CAROTID ARTERY, INTERNAL) carotid arteries.Subclavian Artery: Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb.Radial Artery: The direct continuation of the brachial trunk, originating at the bifurcation of the brachial artery opposite the neck of the radius. Its branches may be divided into three groups corresponding to the three regions in which the vessel is situated, the forearm, wrist, and hand.Tissue Plasminogen Activator: A proteolytic enzyme in the serine protease family found in many tissues which converts PLASMINOGEN to FIBRINOLYSIN. It has fibrin-binding activity and is immunologically different from UROKINASE-TYPE PLASMINOGEN ACTIVATOR. The primary sequence, composed of 527 amino acids, is identical in both the naturally occurring and synthetic proteases.Ventricular Function, Left: The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.Premedication: Preliminary administration of a drug preceding a diagnostic, therapeutic, or surgical procedure. The commonest types of premedication are antibiotics (ANTIBIOTIC PROPHYLAXIS) and anti-anxiety agents. It does not include PREANESTHETIC MEDICATION.Intracranial Embolism: Blocking of a blood vessel in the SKULL by an EMBOLUS which can be a blood clot (THROMBUS) or other undissolved material in the blood stream. Most emboli are of cardiac origin and are associated with HEART DISEASES. Other non-cardiac sources of emboli are usually associated with VASCULAR DISEASES.Brachytherapy: A collective term for interstitial, intracavity, and surface radiotherapy. It uses small sealed or partly-sealed sources that may be placed on or near the body surface or within a natural body cavity or implanted directly into the tissues.Intraoperative Complications: Complications that affect patients during surgery. They may or may not be associated with the disease for which the surgery is done, or within the same surgical procedure.Randomized Controlled Trials as Topic: Works about clinical trials that involve at least one test treatment and one control treatment, concurrent enrollment and follow-up of the test- and control-treated groups, and in which the treatments to be administered are selected by a random process, such as the use of a random-numbers table.Cardiovascular Agents: Agents that affect the rate or intensity of cardiac contraction, blood vessel diameter, or blood volume.Registries: The systems and processes involved in the establishment, support, management, and operation of registers, e.g., disease registers.Radiology, Interventional: Subspecialty of radiology that combines organ system radiography, catheter techniques and sectional imaging.Chi-Square Distribution: A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.Rabbits: 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.Peripheral Arterial Disease: Lack of perfusion in the EXTREMITIES resulting from atherosclerosis. It is characterized by INTERMITTENT CLAUDICATION, and an ANKLE BRACHIAL INDEX of 0.9 or less.Embolism, Cholesterol: Blocking of a blood vessel by CHOLESTEROL-rich atheromatous deposits, generally occurring in the flow from a large artery to small arterial branches. It is also called arterial-arterial embolization or atheroembolism which may be spontaneous or iatrogenic. Patients with spontaneous atheroembolism often have painful, cyanotic digits of acute onset.Streptokinase: Streptococcal fibrinolysin . An enzyme produced by hemolytic streptococci. It hydrolyzes amide linkages and serves as an activator of plasminogen. It is used in thrombolytic therapy and is used also in mixtures with streptodornase (STREPTODORNASE AND STREPTOKINASE). EC 3.4.-.Swine, Miniature: Genetically developed small pigs for use in biomedical research. There are several strains - Yucatan miniature, Sinclair miniature, and Minnesota miniature.Prognosis: A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.Predictive Value of Tests: In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.Diabetic Angiopathies: VASCULAR DISEASES that are associated with DIABETES MELLITUS.Radiography, Interventional: Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.Stroke Volume: The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.Drug-Eluting Stents: Stents that are covered with materials that are embedded with chemicals that are gradually released into the surrounding milieu.Multivariate Analysis: A set of techniques used when variation in several variables has to be studied simultaneously. In statistics, multivariate analysis is interpreted as any analytic method that allows simultaneous study of two or more dependent variables.Swine: 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).Stroke: A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)Safety: Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.Prosthesis Design: The plan and delineation of prostheses in general or a specific prosthesis.Catheterization, Peripheral: Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.Diatrizoate Meglumine: A versatile contrast medium used for DIAGNOSTIC X-RAY RADIOLOGY.Injections, Intra-Arterial: Delivery of drugs into an artery.Neointima: The new and thickened layer of scar tissue that forms on a PROSTHESIS, or as a result of vessel injury especially following ANGIOPLASTY or stent placement.Shock, Cardiogenic: Shock resulting from diminution of cardiac output in heart disease.Hemorrhage: Bleeding or escape of blood from a vessel.Vascular Diseases: 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.Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.Proportional Hazards Models: Statistical models used in survival analysis that assert that the effect of the study factors on the hazard rate in the study population is multiplicative and does not change over time.Gangrene: Death and putrefaction of tissue usually due to a loss of blood supply.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Phlebography: Radiographic visualization or recording of a vein after the injection of contrast medium.Double-Blind Method: A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.Ischemic Attack, Transient: Brief reversible episodes of focal, nonconvulsive ischemic dysfunction of the brain having a duration of less than 24 hours, and usually less than one hour, caused by transient thrombotic or embolic blood vessel occlusion or stenosis. Events may be classified by arterial distribution, temporal pattern, or etiology (e.g., embolic vs. thrombotic). (From Adams et al., Principles of Neurology, 6th ed, pp814-6)Budd-Chiari Syndrome: 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.Incidence: The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.Multicenter Studies as Topic: Works about controlled studies which are planned and carried out by several cooperating institutions to assess certain variables and outcomes in specific patient populations, for example, a multicenter study of congenital anomalies in children.Laser Therapy: The use of photothermal effects of LASERS to coagulate, incise, vaporize, resect, dissect, or resurface tissue.Nicorandil: A derivative of the NIACINAMIDE that is structurally combined with an organic nitrate. It is a potassium-channel opener that causes vasodilatation of arterioles and large coronary arteries. Its nitrate-like properties produce venous vasodilation through stimulation of guanylate cyclase.Length of Stay: The period of confinement of a patient to a hospital or other health facility.Ioxaglic Acid: A low-osmolar, ionic contrast medium used in various radiographic procedures.Coronary Aneurysm: Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.Actuarial Analysis: The application of probability and statistical methods to calculate the risk of occurrence of any event, such as onset of illness, recurrent disease, hospitalization, disability, or death. It may include calculation of the anticipated money costs of such events and of the premiums necessary to provide for payment of such costs.Kaplan-Meier Estimate: A nonparametric method of compiling LIFE TABLES or survival tables. It combines calculated probabilities of survival and estimates to allow for observations occurring beyond a measurement threshold, which are assumed to occur randomly. Time intervals are defined as ending each time an event occurs and are therefore unequal. (From Last, A Dictionary of Epidemiology, 1995)Veins: The vessels carrying blood away from the capillary beds.Brachiocephalic Trunk: The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.Takayasu Arteritis: A chronic inflammatory process that affects the AORTA and its primary branches, such as the brachiocephalic artery (BRACHIOCEPHALIC TRUNK) and CAROTID ARTERIES. It results in progressive arterial stenosis, occlusion, and aneurysm formation. The pulse in the arm is hard to detect. Patients with aortitis syndrome often exhibit retinopathy.Diabetes Complications: Conditions or pathological processes associated with the disease of diabetes mellitus. Due to the impaired control of BLOOD GLUCOSE level in diabetic patients, pathological processes develop in numerous tissues and organs including the EYE, the KIDNEY, the BLOOD VESSELS, and the NERVE TISSUE.Hospital Charges: The prices a hospital sets for its services. HOSPITAL COSTS (the direct and indirect expenses incurred by the hospital in providing the services) are one factor in the determination of hospital charges. Other factors may include, for example, profits, competition, and the necessity of recouping the costs of uncompensated care.Contrast Media: Substances used to allow enhanced visualization of tissues.Hemostatic Techniques: Techniques for controlling bleeding.Regression Analysis: Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.Logistic Models: Statistical models which describe the relationship between a qualitative dependent variable (that is, one which can take only certain discrete values, such as the presence or absence of a disease) and an independent variable. A common application is in epidemiology for estimating an individual's risk (probability of a disease) as a function of a given risk factor.Vertebral Artery: The first branch of the SUBCLAVIAN ARTERY with distribution to muscles of the NECK; VERTEBRAE; SPINAL CORD; CEREBELLUM; and interior of the CEREBRUM.Pulmonary Veno-Occlusive Disease: 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.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)Postoperative Period: The period following a surgical operation.Mesenteric Vascular Occlusion: Obstruction of the flow in the SPLANCHNIC CIRCULATION by ATHEROSCLEROSIS; EMBOLISM; THROMBOSIS; STENOSIS; TRAUMA; and compression or intrinsic pressure from adjacent tumors. Rare causes are drugs, intestinal parasites, and vascular immunoinflammatory diseases such as PERIARTERITIS NODOSA and THROMBOANGIITIS OBLITERANS. (From Juergens et al., Peripheral Vascular Diseases, 5th ed, pp295-6)Coated Materials, Biocompatible: Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.Whole Blood Coagulation Time: The time required by whole blood to produce a visible clot.Arteries: The vessels carrying blood away from the heart.Exercise Test: Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.Costs and Cost Analysis: Absolute, comparative, or differential costs pertaining to services, institutions, resources, etc., or the analysis and study of these costs.Ticlopidine: An effective inhibitor of platelet aggregation commonly used in the placement of STENTS in CORONARY ARTERIES.Equipment Reuse: Further or repeated use of equipment, instruments, devices, or materials. It includes additional use regardless of the original intent of the producer as to disposability or durability. It does not include the repeated use of fluids or solutions.Disease-Free Survival: Period after successful treatment in which there is no appearance of the symptoms or effects of the disease.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Cardiology: The study of the heart, its physiology, and its functions.Angioscopes: Endoscopes used for viewing the interior of blood vessels.Carotid Artery Diseases: Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology.Vasodilator Agents: Drugs used to cause dilation of the blood vessels.Polyethylene Terephthalates: 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.Acute Disease: Disease having a short and relatively severe course.Hospital Costs: The expenses incurred by a hospital in providing care. The hospital costs attributed to a particular patient care episode include the direct costs plus an appropriate proportion of the overhead for administration, personnel, building maintenance, equipment, etc. Hospital costs are one of the factors which determine HOSPITAL CHARGES (the price the hospital sets for its services).Renal Dialysis: Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION.Evaluation Studies as Topic: Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.Pulmonary Valve Stenosis: The pathologic narrowing of the orifice of the PULMONARY VALVE. This lesion restricts blood outflow from the RIGHT VENTRICLE to the PULMONARY ARTERY. When the trileaflet valve is fused into an imperforate membrane, the blockage is complete.

The endovascular management of blue finger syndrome. (1/1210)

OBJECTIVES: To review our experience of the endovascular management of upper limb embolisation secondary to an ipsilateral proximal arterial lesion. DESIGN: A retrospective study. MATERIALS AND METHODS: Over 3 years, 17 patients presented with blue fingers secondary to an ipsilateral proximal vascular lesion. These have been managed using transluminal angioplasty (14) and arterial stenting (five), combined with embolectomy (two) and anticoagulation (three)/anti-platelet therapy (14). RESULTS: All the patients were treated successfully. There have been no further symptomatic embolic episodes originating from any of the treated lesions, and no surgical amputations. Complications were associated with the use of brachial arteriotomy for vascular access. CONCLUSIONS: Endovascular techniques are safe and effective in the management of upper limb embolic phenomena associated with an ipsilateral proximal focal vascular lesion.  (+info)

Infrainguinal revascularisation in the era of vein-graft surveillance--do clinical factors influence long-term outcome? (2/1210)

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)

Endothelial implants inhibit intimal hyperplasia after porcine angioplasty. (3/1210)

The perivascular implantation of tissue-engineered endothelial cells around injured arteries offers an opportunity to study fundamental vascular physiology as well as restore and improve tissue function. Cell source is an important issue because the ability to implant either xenogeneic or allogeneic cells would greatly enhance the clinical applications of tissue-engineered grafts. We investigated the biological and immunological responses to endothelial cell xenografts and allografts in pigs 4 weeks after angioplasty of the carotid arteries. Porcine or bovine aortic endothelial cells were cultured within Gelfoam matrices and implanted in the perivascular space of 42 injured arteries. Both porcine and bovine endothelial cell grafts reduced the restenosis index compared with control by 54% and 46%, respectively. Perivascular heparin release devices, formulated to release heparin at twice the rate of release of heparan sulfate proteoglycan from endothelial cell implants, produced no significant reduction in the restenosis index. Endothelial cell implants also reduced occlusive thrombosis compared with control and heparin release devices. Host immune responses to endothelial implants were investigated by immunohistochemical examination of explanted devices and by immunocytochemistry of serum samples. The bovine cell grafts displayed infiltration of leukocytes, consisting primarily of lymphocytes, and caused an increase in antibodies detected in serum samples. Reduced cellular infiltration and no humoral response were detected in animals that received allografts. Despite the difference in immune response, the biological effects of xenografts or allografts did not differ significantly.  (+info)

Long-term functional status and quality of life after lower extremity revascularization. (4/1210)

OBJECTIVE: The objective of this study was to assess the longer term (up to 7 years) functional status and quality of life outcomes from lower extremity revascularization. METHODS: This study was designed as a cross-sectional telephone survey and chart review at the University of Minnesota Hospital. The subjects were patients who underwent their first lower extremity revascularization procedure or a primary amputation for vascular disease between January 1, 1989, and January 31, 1995, who had granted consent or had died. The main outcome measures were ability to walk, SF-36 physical function, SF-12, subsequent amputation, and death. RESULTS: The medical records for all 329 subjects were reviewed after the qualifying procedures for details of the primary procedure (62.6% arterial bypass graft, 36.8% angioplasty, 0.6% atherectomy), comorbidities (64% diabetics), severity of disease, and other vascular risk factors. All 166 patients who were living were surveyed by telephone between June and August 1996. At 7 years after the qualifying procedure, 73% of the patients who were alive still had the qualifying limb, although 63% of the patients had died. Overall, at the time of the follow-up examination (1 to 7.5 years after the qualifying procedure), 65% of the patients who were living were able to walk independently and 43% had little or no limitation in walking several blocks. In a multiple regression model, patients with diabetes and patients who were older were less likely to be able to walk at follow-up examination and had a worse functional status on the SF-36 and a lower physical health on the SF-12. Number of years since the procedure was not a predictor in any of the analyses. CONCLUSION: Although the long-term mortality rate is high in the population that undergoes lower limb revascularization, the survivors are likely to retain their limb over time and have good functional status.  (+info)

Economics of myocardial perfusion imaging in Europe--the EMPIRE Study. (5/1210)

BACKGROUND: Physicians use myocardial perfusion imaging to a variable extent in patients presenting with possible coronary artery disease. There are few clinical data on the most cost-effective strategy although computer models predict that routine use of myocardial perfusion imaging is cost-effective. OBJECTIVES: To measure the cost-effectiveness of four diagnostic strategies in patients newly presenting with possible coronary artery disease, and to compare cost-effectiveness in centres that routinely use myocardial perfusion imaging with those that do not. METHODS: We have studied 396 patients presenting to eight hospitals for the diagnosis of coronary artery disease. The hospitals were regular users or non-users of myocardial perfusion imaging with one of each in four countries (France, Germany, Italy, United Kingdom). Information was gathered retrospectively on presentation, investigations, complications, and clinical management, and patients were followed-up for 2 years in order to assess outcome. Pre- and post-test probabilities of coronary artery disease were computed for diagnostic tests and each test was also assigned as diagnostic or part of management. Diagnostic strategies defined were: 1: Exercise electrocardiogram/coronary angiography, 2: exercise electrocardiogram/myocardial perfusion imaging/coronary angiography, 3: myocardial perfusion imaging/coronary angiography, 4: coronary angiography. Primary outcome measures were the cost and accuracy of diagnosis, the cost of subsequent management, and clinical outcome. Secondary measures included prognostic power, normal angiography rate, and rate of angiography not followed by revascularization. RESULTS: Mean diagnostic costs per patient were: strategy 1: 490 Pounds, 2: 409 Pounds, 3: 460 Pounds, 4: 1253 Pounds (P < 0.0001). Myocardial perfusion imaging users: 529 Pounds, non-users 667 Pounds (P = 0.006). Mean probability of the presence of coronary artery disease when the final clinical diagnosis was coronary artery disease present were, strategy 1: 0.85, 2: 0.82, 3: 0.97, 4: 1.0 (P < 0.0001), users 0.93, non-users 0.88 (P = 0.02), and when coronary artery disease was absent, 1: 0.26, 2: 0.22, 3: 0.16, 4: 0.0 (P < 0.0001), users 0.21, non-users 0.20 (P = ns). Total 2-year costs (coronary artery disease present/absent) were: strategy 1: 4453 Pounds/710 Pounds, 2: 3842 Pounds/478 Pounds, 3: 3768 Pounds/574 Pounds, 4: 5599 Pounds/1475 Pounds (P < 0.05/0.0001), users: 5563 Pounds/623 Pounds, non-users: 5428 Pounds/916 Pounds (P = ns/0.001). Prognostic power at diagnosis was higher (P < 0.0001) and normal coronary angiography rate lower (P = 0.07) in the scintigraphic centres and strategies. Numbers of soft and hard cardiac events over 2 years and final symptomatic status did not differ between strategy or centre. CONCLUSION: Investigative strategies using myocardial perfusion imaging are cheaper and equally effective when compared with strategies that do not use myocardial perfusion imaging, both for cost of diagnosis and for overall 2 year management costs. Two year patient outcome is the same.  (+info)

Health-related quality of life after angioplasty and stent placement in patients with iliac artery occlusive disease: results of a randomized controlled clinical trial. The Dutch Iliac Stent Trial Study Group. (6/1210)

BACKGROUND: To assess the quality of life in patients with iliac artery occlusive disease, we compared primary stent placement versus primary angioplasty followed by selective stent placement in a multicenter randomized controlled trial. METHODS AND RESULTS: Quality-of-life assessments were completed by 254 patients in a telephone interview. Assessment measures consisted of the RAND 36-Item Health Survey 1.0, time tradeoff, standard gamble, rating scale, health utilities index, and EuroQol-5D. The interviews were performed before treatment and after 1, 3, 12, and 24 months. When the 2 treatments were compared, no significant difference was observed (P>0.05). All measurements showed a significant improvement in the quality of life after treatment (P<0.05). The RAND 36-Item Health Survey measures physical functioning, role limitations caused by physical problems, and bodily pain and the EuroQol-5D were the most sensitive to the impact of revascularization. CONCLUSIONS: Health-related quality of life improves equally after primary stent placement and primary angioplasty with selective stent placement in the treatment of intermittent claudication caused by iliac artery occlusive disease.  (+info)

Isolated inferior mesenteric artery revascularization for chronic visceral ischemia. (7/1210)

PURPOSE: Complete visceral artery revascularization is recommended for the treatment of chronic visceral ischemia. However, in rare cases, it may not be possible to revascularize either the celiac or superior mesenteric (SMA) arteries. We have managed a series of patients with isolated revascularization of the inferior mesenteric artery (IMA) and now report our experience gained over a period of three decades. METHODS: Records were reviewed from 11 patients with chronic visceral ischemia who underwent isolated IMA revascularization (n = 8) or who, because of failure of concomitant celiac or SMA repairs, were functionally left with an isolated IMA revascularization (n = 3). All the patients had symptomatic chronic visceral ischemia documented with arteriography. Five patients had recurrent visceral ischemia after failed visceral revascularization, and two patients had undergone resection of ischemic bowel. The celiac or the SMA was unsuitable for revascularization in five cases, and extensive adhesions precluded safe exposure of the celiac or the SMA in five cases. IMA revascularization techniques included: bypass grafting (n = 4), transaortic endarterectomy (n = 4), reimplantation (n = 2), and patch angioplasty (n = 1). RESULTS: There was one perioperative death, and the remaining 10 patients had cured or improved conditions at discharge. One IMA repair thrombosed acutely but was successfully revascularized at reoperation. The median follow-up period was 6 years (range, 1 month to 13 years). Two patients had recurrent symptoms develop despite patent IMA repairs and required subsequent visceral revascularization; interruption of collateral circulation by prior bowel resection may have contributed to recurrence in both patients. Objective follow-up examination with arteriography or duplex scanning was available for eight patients at least 1 year after IMA revascularization, and all underwent patent IMA repairs. There were no late deaths as a result of bowel infarction. CONCLUSION: Isolated IMA revascularization may be useful when revascularization of other major visceral arteries cannot be performed and a well-developed, intact IMA collateral circulation is present. In this select subset of patients with chronic visceral ischemia, isolated IMA revascularization can achieve relief of symptoms and may be a lifesaving procedure.  (+info)

Impact of race on the treatment for peripheral arterial occlusive disease. (8/1210)

PURPOSE: The purpose of this study was to determine the impact of race on the treatment of peripheral artery occlusive disease (PAOD) and to examine the role of access to care and disease distribution on the observed racial disparity. METHODS: The study was performed as a retrospective analysis of hospital discharge abstracts from 1992 to 1995 in 202 non-federal, acute-care hospitals in the state of Florida. The subjects were patients older than 44 years of age who underwent major lower extremity amputation or revascularization (bypass grafting or angioplasty) for PAOD. The main outcome measures were incidence of intervention, incidence per demographic group, multivariate predictors of amputation versus revascularization, multivariate predictors of amputation versus revascularization among those patients with access to sophisticated care (hospital with arteriographic capabilities), and multivariate predictors of surgical bypass graft type (aortoiliac vs infrainguinal). RESULTS: A total of 51,819 procedures (9.1 per 10,000 population) were performed for PAOD during the study period and included 15,579 major lower extremity amputations (30.1%) and 36,240 revascularizations (69.9%). Although the incidence of a procedure for PAOD was comparable between African Americans and whites (9.0 vs 9.6 per 10, 000 demographic group), the incidence of amputation (5.0 vs 2.5 per 10,000 demographic group) was higher and the incidence of revascularization (4.0 vs 7.1 per 10,000 demographic group) was lower among African Americans. Furthermore, multivariate analysis results showed that African Americans (odds ratio, 3.79; 95% confidence interval [CI], 3.34 to 4.30) were significantly more likely than whites to undergo amputation as opposed to revascularization. The secondary multivariate analyses results revealed that African Americans (odds ratio, 2.29; 95% CI, 1.58 to 3. 33) were more likely to undergo amputation among those patients (n = 9193) who underwent arteriography during the procedural admission and to undergo infrainguinal bypass grafting (odds ratio, 2.00; 95% CI, 1.48 to 2.71) among those patients (n = 27,796) who underwent surgical bypass grafting. CONCLUSION: There is a marked racial disparity in the treatment of patients with PAOD that may be caused in part by differences in the severity of disease or disease distribution.  (+info)

*Atherectomy

Unlike angioplasty and stents, which push plaque into the vessel wall, atherectomy cuts plaque from the wall of the artery. ... It is an alternative to angioplasty for the treatment of peripheral artery disease, but the studies that exist are not adequate ... to determine if it is superior to angioplasty. It has also been used to treat coronary artery disease, albeit ineffectively. ...

*Myocardial infarction complications

"Primary angioplasty reduces the risk of left ventricular free wall rupture compared with thrombolysis in patients with acute ...

*Percutaneous coronary intervention

Coronary angioplasty, also known as percutaneous transluminal coronary angioplasty (PTCA), because it is done through the skin ... The mortality rate during angioplasty is 1.2%. Sometimes chest pain can occur during angioplasty because the balloon briefly ... Angioplasty carried out shortly after an MI has a risk of causing a stroke, but this is less than the risk of a stroke ... While balloon angioplasty is still done as a part of nearly all percutaneous coronary interventions, it is rarely the only ...

*Angioplasty

... , also known as balloon angioplasty and percutaneous transluminal angioplasty (PTA), is a minimally invasive, ... Relative to surgery, angioplasty is a lower-risk option for the treatment of the conditions for which it is used, but there are ... Peripheral angioplasty refers to the use of a balloon to open a blood vessel outside the coronary arteries. It is commonly done ... The first coronary angioplasty with a drug delivery stents system was performed by Luis de la Fuente, at de Instituto Argentino ...

*Balloon

Angioplasty is a surgical procedure in which very small balloons are inserted into blocked or partially blocked blood vessels ... A small stent can be inserted at the angioplasty site to keep the vessel open after the balloon's removal. Balloon catheters ... Berger, Alan (May 30, 2006). "Angioplasty". Medical Encyclopedia. MedlinePlus. Archived from the original on May 9, 2007. ...

*Meditrina Hospital

Kollam Meditrina hospital conducted a live open heart angioplasty demonstration for the public at Quilon Beach Hotel in Kollam ...

*Arteriosclerosis

There are a variety of types of surgery: Angioplasty and stent placement: A catheter is first inserted into the blocked/ ... "Angioplasty: MedlinePlus". www.nlm.nih.gov. Retrieved 2015-06-19. "Coronary artery bypass surgery". MedlinePlus. " ...

*Medical Technology Group

... and coronary angioplasty. The report concluded that £476 million in savings per year could be generated from the use of eight ...

*Cutting balloon

A cutting balloon is an angioplasty device invented by Barath et al. used in percutaneous coronary interventions. It has a ... Barath P, Fishbein MC, Vari S, Forrester JS (1991). "cutting balloon: A novel approach to percutaneous angioplasty". Am J ... Lee M, Singh V, Nero T, Wilentz J (2002). "Cutting balloon angioplasty". J Invasive Cardiol. 14 (9): 552-6. PMID 12205358. Full ... Overview Coronary Artery Disease Treatment - Coronary Interventions ANGIOPLASTY, STENTS AND ATHERECTOMY (Cleveland Clinic) ...

*Interventional radiology

Vascular Balloon angioplasty/stent: Opening of narrow or blocked blood vessels using a balloon, with or without placement of ... ISBN 978-0-19-157556-3. Uberoi, Raman (2009). "7 Angioplasty and stenting". Interventional radiology. Oxford New York: Oxford ...

*Health First

In the year ending June 2010, there were 899 hospitalizations for angioplasty, the most selected surgery. There were 1,000 C- ... Jenks, Susan (22 February 2011). "Angioplasty tops popular surgeries". Florida Today. Melbourne, Florida. pp. 1D. Official ...

*Holmes Regional Medical Center

In the year ending June 2010, there were 899 hospitalizations for angioplasty, the most selected surgery. Schweers, Jeff (March ... Jenks, Susan (22 February 2011). "Angioplasty tops popular surgeries". Florida Today. Melbourne, Florida. pp. 1D. Coordinates: ...

*Manjinder Sandhu

"Future Of Angioplasty - Dr Sandhu". "C3 Conference". "Dr Sandhu speaks about cardiac health". ... His clinical focus is in complex coronary interventions like Primary angioplasty, Bifurcation lesions, Chronic total occlusions ... His clinical focus is in complex coronary interventions like Primary angioplasty, Bifurcation lesions, Chronic total occlusions ...

*Coronary stent

Angioplasty 101 Angioplasty.Org "Archived copy". Archived from the original on 2010-12-05. Retrieved 2010-09-28. Michel, Thomas ... Intravascular Ultrasound - Angioplasty.Org Aoki J, Ong ATL, Granillo GAR, McFadden EP, van Mieghem CAG, Valgimigli M, Tsuchida ... Play media Treating a blocked ("stenosed") coronary artery with a stent follows the same steps as other angioplasty procedures ... angioplasty, or surgery study (MASS-II): a randomized, controlled clinical trial of three therapeutic strategies for ...

*Scanning Fiber Endoscope (SFE)

500,000 balloon angioplasty/stent/coronary procedures; 1M coronary catheterizations Recent successes in acute stroke care are ...

*Percutaneous intentional extraluminal revascularization

Angioplasty Peripheral vascular disease Reekers, JA; Bolia, A (Oct 1998). "Percutaneous intentional extraluminal (subintimal) ... "Subintimal angioplasty for peripheral arterial occlusive disease: a systematic review". Cardiovasc Intervent Radiol. 31 (4): ...

*Gangrene

Angioplasty should be considered if severe blockage in lower leg vessels (tibial and peroneal artery) leads to gangrene. As ... "Angioplasty and stent placement - peripheral arteries". Retrieved July 24, 2013. Shi E. and Shofler D., Maggot debridement ... Efforts to treat the underlying cause may include bypass surgery or angioplasty. In certain cases hyperbaric oxygen therapy may ... via vascular bypass or angioplasty). However, once gangrene has developed, the affected tissues are not salvageable. Because ...

*Coronary artery disease

... angioplasty with or without stent insertion) or with thrombolysis ("clot buster" medication), whichever is available. In the ... Coronary interventions as angioplasty and coronary stent; Coronary artery bypass grafting (CABG) Statins, which reduce ... coronary angiography may be used to identify stenosis of the coronary arteries and suitability for angioplasty or bypass ...

*Szilard Voros

"Interview with Szilard Voros, MD - Angioplasty.Org". Ptca.org. Retrieved 2011-08-08. "Szilard Voros". Wn.com. Retrieved 2011-08 ...

*History of invasive and interventional cardiology

Gruentzig performed coronary angioplasties in 169 patients in Zurich, while teaching the practice of coronary angioplasty to a ... Angioplasty Percutaneous coronary intervention Mueller RL, Sanborn TA (1995). "The history of interventional cardiology: ... Angioplasty.Org History Center, celebrating a decade of independent cardiology news and education. ... Initial results with the Palmaz-Schatz stents were excellent when compared to balloon angioplasty, with a significantly lower ...

*Reb Anderson

He later underwent a successful emergency angioplasty. Anderson is married to Rusa Chiu, a Jungian analyst in private practice ...

*Doug Brocail

Brocail underwent angioplasty on March 11, 2006. He had complained of chest tightness that radiated into both arms. He already ...

*Cardiac marker

Thrombolysis and Angioplasty in Myocardial Infarction-7". Circulation. 96 (6): 1776-82. doi:10.1161/01.cir.96.6.1776. PMID ...

*Taipei Veterans General Hospital

1985) 6. First percutaneous transluminal coronary angioplasty (PTCA) in Taiwan. (July 1983) 7. The computer-monitored ...

*Walter Casagrande

Casagrande made angioplasty, surgical intervention to unblock arteries. The hospital did not say whether he had to put a stent ...
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PCB has been used for BMS-ISR because previous studies have shown that PCB angioplasty is safe and effective in treating BMS-ISR (1). Although PCB is now widely used, there are few reports on intracoronary imaging of the drug-coated neointima after PCB angioplasty. In the current report, slow-flow phenomenon after PCB angioplasty was observed, and OCT and CAS nicely revealed drug-coated neointimal plaque after PCB angioplasty. To our knowledge, this is the first report of the case that slow-flow phenomenon occurred after PCB angioplasty and drug-coated neointimal plaque was evaluated by OCT and CAS. It was reported that PCB angioplasty was associated with diminished endothelial-dependent vasomotor function (2) and acute decrease in coronary flow reserve (3). In these cases, the slow-flow phenomenon after PCB angioplasty was partly caused by an impaired microvascular response as a result of drugs. In addition, CAS revealed white granular materials that might indicate undissolved drugs on the ...
Looking for angioplasty? Find out information about angioplasty. any surgical repair of a blood vessel, especially balloon angioplasty or percutaneous transluminal coronary angioplasty, a treatment of coronary artery... Explanation of angioplasty
Health,A new study finds angioplasty should be the treatment of choice for he...Research has shown heart attack patients fare better when they are t...Danish investigators provide evidence reversing conventional wisdom....Researchers analyzed results looking at a combination of death cli...,Angioplasty,Should,be,the,Standard,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
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A balloon angioplasty is when a catheter is inserted through an artery and guided to the place where the artery is narrowed. Depending on which artery is being treated, a stent may be inserted during the angioplasty.
Definition of Balloon angioplasty with photos and pictures, translations, sample usage, and additional links for more information.
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How to Exercise Safely After Angioplasty. When plaque begins to block blood flow to your heart, you have an increased risk for chest pain, heart attacks and other cardiac events. An angioplasty can help improve the blood flow to the heart....
... often include relief of chest pain. This eMedTV article discusses the expected results of angioplasty and explains that arteries may not remain unblocked after the procedure.
Health,Each year more than 600000 Americans have angioplasty procedures to ...In a paper published in the journal Circulation a group of Michiga...The project is led by researchers from the University of Michigan C...The results yielded a dramatic before and after contrast. Befor...There was also wide variation in how patients did afterward includ...,Study,finds,room,for,improvement,in,angioplasty,,shows,what,can,be,done,to,cut,risks,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
Angioplasty is often recommended for people who have blocked arteries. Find out if angioplasty is for you in this article from Discovery Health.
Featured Angioplasty News. Find breaking news, commentary, and archival information about Angioplasty From The tribunedigital-mcall (Page 4 of 5)
Infections that occur after an angioplasty are uncommon. This part of the eMedTV Web site describes how the use of sterile equipment reduces the risk of infections following angioplasty. If a patient does develop an infection, it is usually minor.
Your groin or leg may have a bruise or a small lump where the catheter was put in your groin. The area may feel sore for a day or two after the procedure. You can do light activities around the house but nothing strenuous for several days.. After surgery, blood may flow better throughout your leg, which can decrease leg pain, numbness, and cramping.. ...
I would sincerely appreciate if a certified IRR coder/Vascular coder could help someone very rusty on this type coding verify my code choices, please/
... definition, a method of opening a clogged or narrowed blood vessel in which a small balloon is introduced into the vessel by means of a catheter and then inflated at the site of blockage. See more.
The latest results from the longest-running study yet confirm that surgery is better than artery-opening angioplasty in preventing strokes caused by blockage of
Angioplasty risks are of two types - those that occur during the procedure, and those that occur a few months after the procedure. Read on to learn more.
hi my dad age 62 just had a angioplasty he is diabetic overweight and has high blood pressure what is the best diet ,medicine and vitamins recommended for him
The thought of exercising after an angioplasty can provoke feelings of fear and uncertainty. Could exercise trigger a heart attack? How hard should you...
Could anyone who had heat intolerace as a symptom and has had an angioplasty please comment about whether the symptom improved. If there was an improvement, was this an immediate effect or did it take a few days or weeks? ...
After suffering four bouts of chest pain in three days, Vice President Dick Cheney underwent surgery Monday to repair an artery doctors had treated following his heart attack in November.Doctors
Im 33. I dont drink or smoke, and despite the fact that I could lose about 20 lbs, Im in decent shape. So I wasnt worried too much when I felt a...
We present the results of the first 33 patients who underwent carotid stent-assisted angioplasty at the Heart Unit of Panorama Medi-Clinic between March 1995 and June 1996. Intravascular stents (48 Palmaz-Schatz and 1 Wall stent) were deployed in the common carotid arteries (5) and internal carotid arteries (38) of both symptomatic (28 patients) and asymptomatic patients (5 patients) with > 60% stenosis (35 with> 70% and 6 with 60% stenosis). Thirteen patients underwent bilateral stent implantation, and had percutaneous transluminal coronary angioplasty or a peripheral and/or coronary stent implanted. Mean admission time was 2 days. Follow-up for 15 months (mean 9 months) employed clinical evaluation, duplex scanning at 6 and 12 months, and cerebral magnetic resonance imaging before, 48 hours and 6 months after the procedure. Angiographic success, defined as maximal residual stenosis < 10%, was achieved in 100%. Clinical success, defined as maximal residual stenosis < 10% and absence of
Background and aim: Cerebral hyperperfusion syndrome (CHS) including intracranial hemorrhage (ICH) is a serious complication after carotid artery stenting (CAS). Staged angioplasty (SAP), undersized-balloon angioplasty followed by delayed CAS, was reported to be a potential preventable method against CHS. The aim of this study was to clarify the efficacy of SAP to prevent CHS after endovascular carotid revascularization for high-risk patients of CHS.. Methods: The STOP CHS study is a multicenter, retrospective study which registered 535 high-risk patients of CHS from 45 Japanese centers, who underwent regular CAS, SAP or angioplasty performed by board-certified neurointerventionists between October 2007 and March 2014. Selection of high-risk patients of CHS was based on imaging tests, such as single-photon emission computed tomography with acetazolamide. We investigated the cumulative periprocedural rates of CHS, ICH and major adverse event (MAE: stroke, myocardial infarction and death) of ...
Information and advice on Carotid Artery Angioplasty from UK consultant vascular surgeon Shane MacSweeney of Nottinghams Queens Medical Centre.
Carotid angioplasty (kuh-ROT-id AN-jee-o-plas-tee) is a procedure that opens clogged arteries to prevent or treat stroke. The carotid arteries are located on each side of your neck and are the main arteries supplying blood to your brain. The procedure involves temporarily inserting and inflating a tiny balloon where your carotid artery is clogged to widen the artery.
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Angioplasty, also known as balloon angioplasty and percutaneous transluminal angioplasty (PTA), is a minimally invasive, endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis. A deflated balloon attached to a catheter (a balloon catheter) is passed over a guide-wire into the narrowed vessel and then inflated to a fixed size. The balloon forces expansion of the blood vessel and the surrounding muscular wall, allowing an improved blood flow. A stent may be inserted at the time of ballooning to ensure the vessel remains open, and the balloon is then deflated and withdrawn. Angioplasty has come to include all manner of vascular interventions that are typically performed percutaneously. The word is composed of the combining forms of the Greek words ἀγγεῖον angeîon "vessel" or "cavity" (of the human body) and πλάσσω plássō "form" or "mould". A coronary angioplasty is a therapeutic procedure to treat the stenotic ...
Leg artery angioplasty. Coloured X-ray of the right superficial femoral artery at its junction with the popliteal artery, during angioplasty treatment of stenosis (narrowing) of the arteries in a 64-year-old man. An arterial endoprosthesis (stent, centre) has been inserted to hold open the artery. - Stock Image C037/0720
Leg artery angioplasty. X-ray of the right superficial femoral artery at its junction with the popliteal artery, during angioplasty treatment of stenosis (narrowing) of the arteries in a 64-year-old man. An arterial endoprosthesis (stent, centre) has been inserted to hold open the artery. - Stock Image C037/0718
With regard to the generalizability of the conclusions of this combined analysis to other established or proposed primary PCI programs, it should be noted that the vast majority of patients underwent primary PCI at established angioplasty centers. Although in the DANAMI 2 study, 3 of the 5 PCI centers had not performed primary PCI before study participation, in the 5 other studies, the PCI centers, most often high-volume centers, were already experienced in primary angioplasty before the study. From the standpoint of the combined analysis, it cannot therefore be assumed that primary angioplasty in low-volume centers by low-volume operators, particularly without prior experience of the technique, could achieve the overall success seen in this analysis.. The present combined analysis has a number of limitations. Although the literature was thoroughly searched, all recent international cardiac conferences were scrutinized and foreign colleagues from other interventional centers were consulted, it ...
Patients who undergo bypass surgery for heart disease have better long-term survival rates than those who opt for less invasive procedures like angioplasty, a major US study showed on Tuesday.. The study looked at data from 190,000 US patients and found that those who had bypass surgery had a lower death rate in the first four years (16.4 percent) compared to those who had angioplasty (20.8 percent).. Bypass operations involve open heart surgery to create a detour around a blocked artery using a vein taken from somewhere else in the patients body.. The type of angioplasty examined in the study, known as percutaneous coronary intervention (PCI), involves a small incision to thread a balloon, a wire stent or a tube through the blocked artery to keep it open.. "Our study is the most general one ever done because it uses data from across the whole country. It is also much larger than any other study", said William Weintraub, chair of cardiology at Christiana Care Health System and the studys lead ...
Since the mid 1990s wire mesh stents have become a standard part of the angioplasty procedure. Unfortunately, these wire cylinders (stents) irritate the smooth muscle cells of the artery walls causing these cells to grow aggressively (to proliferate). This growth is an effort by the body to cover up the foreign metal that has just been introduced into the artery by the surgeon. This should not be surprising. Whenever an irritating alien material is placed in the body, cells grow around it in order to isolate the unfamiliar substance, which the body perceives as potentially harmful. The growth of the muscle cells (and blood clots) eventually closes 20% to 41% of the arteries containing these metal mesh stents.8 Furthermore, the use of stents results in no better survival than angioplasty alone7,9-and remember angioplasty does not improve the chances of living longer.3,4 If only treatments could be developed to stop these cells from growing. Scientists had to look no further than cancer therapy to ...
METHODS AND RESULTS Four hundred sixty-nine patients with ischemic rest pain with or without a recent (, 1 month) infarction were randomized in double-blind fashion to intracoronary urokinase or placebo. Randomization was carried out in two sequential phases. In phase I, 257 patients were randomized to 250,000 U of urokinase or placebo given in divided doses at the time of angioplasty. In phase II, 212 patients were randomized to 500,000 U of urokinase or placebo in divided doses. All patients were pretreated with aspirin, and activated clotting times were followed to maintain them at , 300 seconds during angioplasty. Angiographic end points of thrombus after angioplasty were insignificantly decreased by urokinase (30 [13.8%] versus 41 [18.0%] with placebo; P = NS). Acute closure, on the other hand, was increased with urokinase (23 [10.2%] versus 10 [4.3%] with placebo; P , .02). The difference in acute closure between urokinase and placebo was more striking at the higher dose of urokinase (P , ...
EU5 Airway Stenting Procedures Outlook to 2023 provides key procedures data on the EU5 Airway Stenting Procedures. The report provides procedure volumes within market segments - Malignant Airway Obstruction Stenting Procedures and Airway Stenting Procedures for Other Indications. The data in the report is derived from dynamic market forecast models. It uses epidemiology based models…
Carotid angioplasty and stenting - When the location of the narrowing or blockage is too difficult for the surgeon to access directly or when you have other health conditions that make surgery too risky, your doctor may recommend a procedure called carotid angioplasty and stenting. While youre under local anesthesia, a tiny balloon is threaded by catheter to the area where your carotid artery is clogged. It is then inflated to widen the artery, and a small wire mesh coil called a stent is inserted to keep the artery from narrowing again. ...
Information on coronary balloon angioplasty and stents. Angioplasty and stent placement is a non-surgical procedure performed to relieve narrowing or obstruction of the arteries to the muscles of the heart.
View messages from patients providing insights into their medical experiences with Angioplasty and Stents - Complications. Share in the message dialogue to help others and address questions on symptoms, diagnosis, and treatments, from MedicineNets doctors.
Angiography is the process of taking an x-ray of the blood vessels to see which vessel is obstructed and requires repairing. Angioplasty is the method of widening the narrowed or constricted arteries or blood vessels.
I have just come across this news on angioplasty (NOT for IJV or azygos): For many patients, angioplasty is NOT in their best interest By Jenny Thompson on 11/19/2010 The landscape of medical history is littered with procedures not in ...
Moist L. Stent grafts were more effective than balloon angioplasty alone for revision of stenosis in failing dialysis-access grafts. Ann Intern Med. 2010;152:JC6-8. doi: 10.7326/0003-4819-152-12-201006150-02008. Download citation file:. ...
In this report, the global Cerebral Balloon Angioplasty & Stenting Systems market is valued at USD XX million in 2017 and is expected to reach USD XX million by the end of 2025, growing at a CAGR of XX% between 2017 and 2025. Geographically, this report split global into several key Regions, with
Dear Doctor, I am a 38 y.o. white male with coronary artery disease 3 months ago (My Dad died at age 42 from the same disease). I underwent angioplasty and stent placement in 2 clogged arteries. Im...
Health, By Kathleen Doheny HealthDay Reporter ...MONDAY Aug. 20 (HealthDay News) -- The potential for a stroke is far...A team of researchers analyzed the results of 19 clinical trials invol... At 30 days stroke was about four times more common with bypass surge...Stroke is an important complication to track Stone noted adding Ne...,Stroke,Risk,Higher,After,Bypass,Than,Angioplasty:,,Analysis,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
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Im not sure where to find the code for cryotherapy. This patient had iliac balloon angioplasty done also balloon cryotherapy done during the same ope
You must tell DVLA if you have a balloon angioplasty in your leg and drive a bus, coach or lorry - download the correct form to let them know
Question - Had angioplasty, stents fitted, shivering. What is wrong?. Ask a Doctor about diagnosis, treatment and medication for Lung infection, Ask a Cardiologist
Which angioplasty or pacemaker surgery surgeons in California get the best outcomes? Find/compare surgeons plus their death and complication rates.
The large, multi-centre randomized trial - the first of its kind to compare radial access and femoral access - found that both entry points for angioplasty resulted in similar outcomes, including rates of death, heart attack, stroke or non-bypass-related major bleeding. As well, radial access - or entry through the forearm - led to better outcomes in hospitals that conducted a large number of these procedures and in patients suffering ...
An angioplasty apparatus for removing abnormal deposits such as atheromatic plaque from the internal arterial walls is provided. The apparatus includes an elongated, flexible mechanism for insertion in an artery to the location of plaque deposit. Two inflatable occluder balloons are provided to be positioned at either ends of the plaque section and inflated to seal off the section. A milling balloon is adapted to be positioned in the plaque section to be rotated and bear against an expandable milling surface which is gradually expanded as the plaque deposit is milled away. Because of the sealing balloons, the plaque particles are prevented from passing into the arterial stream and may be taken away through a tubular channel.
Surgical backup is required for non-emergency angioplasty because, in rare instances, the procedure has led to a tear in a vessel or closing of an artery rather than opening it.
A group of cardiologists at Baystate Medical Center in Massachusetts explored the communications gap between doctors and patients by studying how patients with chronic chest pain (angina), which often limits physical activity, perceived the potential benefits of elective angioplasty to open arteries narrowed by cholesterol-filled plaque.
Theres mounting evidence that exercise may be a better fix for clogged arteries than angioplasty, although persuading patients to be more physically active is the tough part, experts said at a meeting of the European Society of Cardiology on Sunday.
Angioplasty, an invasive heart surgery commonly prescribed for people with heart disease, offers no benefits and may only put you at risk of many side effects.
CHICAGO {AP} When it comes to saving heart attack patients lives, angioplasty beats clot-busting drugs, but only if done in hospitals that specialize in the procedure, new research suggests.
Several European studies have found that the majority of people who undergo nonemergency angioplasty do not have to remain in the hospital overnight, but further…
Angioplasty is a method used to open coronary arteries blocked by obstructing plaques. This can be done usually using balloon angioplasty (see Figure 1). However, balloon angioplasty can be used only...
Vascular Interventional Physicians is an outpatient-style clinic offering convenience and choice to physicians, and to patients who refer themselves.
A renal angiogram can be contraindicated for some patients. Patients with blood which is slow to clot can be in danger because the procedure causes bleeding and there is also a risk of rupturing a vessel. For pregnant women, any procedure requiring radiation is not recommended unless it is absolutely necessary because radiation can hurt the developing foetus. People with allergies may also be at risk during a renal angiogram, because they may react to the contrast agent. Patients should be sure that doctors know their full clinical history before consenting to a procedure ...
This is where a very tiny spiral wire is placed in the artery after the blockage has been removed to stop inflammation of the artery recurring. ...
Carotid angioplasty and stenting (CAS) has emerged as an alternative for carotid endarterectomy (CEA) in the prevention of stroke. The benefit of the procedure, however, is hampered by a suggested higher incidence of in-stent restenosis (ISR) for CAS
An embolic protection device has been proven to reduce risk for in-hospital stroke, major stroke or death and stroke after carotid artery stenting.
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Renal artery stenosis is a relatively common finding in older patients with hypertension. However, renal artery stenosis is the primary cause of hypertension (ie, renovascular hypertension) only in certain settings.In most cases of renal artery steno
Renal atherosclerotic stenosis (RAS) is a prevalent cause of secondary hypertension (HT). Since there are still uncertainties as to whether and in what patients revascularization by means of percutaneous renal angioplasty (PTRAS) should be pursued, we designed a study exploiting an optimized patient selection strategy and using hard experimental endpoints to unravel these uncertainties.. Primary objective: to determine if revascularization by means of PTRAS is superior or equivalent to optimal medical treatment for preserving glomerular filtration rate in the ischemic kidney as assessed by 99mTcDTPA sequential renal scintiscan.. Secondary objectives: to determine if the two treatments are equivalent in lowering blood pressure (BP), preserving overall renal function and regressing damage in the target organs of hypertension.. Design: prospective multicenter randomized, unblinded two-arm study.. Eligible patients will have clinical and/or radiological evidence of unilateral or bilateral RAS, ...
The mechanisms responsible for reocclusion after percutaneous transluminal angioplasty are still poorly understood. The effects of angioplasty on arterial morphology, deoxyribonucleic acid (DNA) synthesis (3H-thymidine incorporation) and lipid metabolism (14C-oleate incorporation) were studied in renal arteries of 24 male mongrel dogs. Balloondilated (identified by Evans blue dye accumulation) and adjacent normal arterial segments were collected 90 min and 2, 5 and 14 days after the procedure. The immediate vascular response was endothelial cell denudation and platelet accumulation.. Two weeks after angioplasty, healing of the luminal surface by "endothelial-like" cells, mild smooth muscle cell proliferation and an angiogenic response with capillary growth into the media were observed. DNA synthesis was increased in balloon-dilated segments at day 5 compared with adjacent nonballoon-dilated artery. This increase in DNA synthesis persisted in the 2 week postangioplasty segments. Additionally, ...
Percutaneous transluminal angioplasty (PTA) of the renal artery has become an increasingly widespread peripheral vascular intervention for the treatment of renovascular hypertension (HTN). Catheter-based procedures began in 1964 when Charles Dotter initially developed PTA for treating peripheral vascular atherosclerosis.
Severe vascular disease including tortuosity and/or occlusive disease that would preclude the safe introduction of a guiding catheter/sheath, cerebral protection device, balloon catheter, stent delivery system or stent placement. Severe tortuosity is defined as 2 or more ,90 degree bend points within 3cm of the target stenosis. One of these bends will be considered to be present if the ICA branches from the CCA at a 90 degree angle. This includes aortic arch anatomy that is unacceptable for carotid stent placement ...
At the time of the initial reporting of results from NASCET and ECST, the first large multicenter randomized clinical trial comparing an endovascular approach to CEA for symptomatic patients with carotid stenosis was also initiated. In the CAVATAS (Carotid and Vertebral Artery Transluminal Angioplasty Study), 504 patients were randomized to carotid balloon angioplasty (with 26% stent use) versus CEA. The risk of death and ipsilateral stroke at 30 days and 3 years was comparable between the 2 strategies, with a higher risk of cranial nerve palsy (8.7% CEA vs. 0% angioplasty, p , 0.0001) but lower risk of restenosis at 1 year (4% CEA vs. 14% angioplasty, p , 0.001) with CEA (29). Despite the lack of randomized controlled trial data demonstrating the superiority of carotid stenting over balloon angioplasty in reducing restenosis, carotid stenting was increasingly undertaken, as it enabled the treatment of arterial dissections and addressed immediate elastic recoil after balloon angioplasty. ...
The invention relates to an angioplasty guiding catheter and methods for performing coronary angioplasty on a patient, to dilate constrictions in blood vessels. The guiding catheter has an elongated first member having at least one lumen therethrough and a tip, at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of patients cardiovascular system, and means for extending the leg member from the retracted position to the extended position, coupled to the leg member. The angioplasty methods of the present invention involves entering the patients cardiovascular system, pericutaneously patients cardiovascular system to a desired translating through the location proximate a constriction in a blood vessel, abutting against an internal wall of the cardiovascular system, advancing towards the constriction in a direction
Vascular surgery: Upper extremities atherosclerosis and stenosis of subclavian artery | Angioplasty, stenting (up to 2 stents). Treatment in Cologne, Germany ✈ Find the best medical programs at BookingHealth - ✔Compare the prices ✔Online booking.
Compare risks and benefits of common medications used for High Risk Percutaneous Transluminal Angioplasty. Find the most popular drugs, view ratings, user reviews, and more...
Percutaneous Transluminal angioplasty - surgical treatment of the leg arteries using stents and angioplasty explained by consultant surgeon Shane MacSweeney from the Queens Medical Centre Nottingham.
Angioplasty (also called percutaneous transluminal angioplasty, or PTA) is a procedure in which a thin, flexible tube called a catheter is inserted through an artery and guided to the place where the artery is narrowed. Once the tube reaches the narrowed artery, a small balloon at the end of the tube inflates for 20 seconds to 3 minutes. The pressure from the inflated balloon presses the fat and .
Patients at a high risk for a second stroke who received intensive medical treatment had fewer strokes and deaths than patients who received a brain stent in addition to the medical treatment, a large nationwide clinical trial has shown. The investigators published the results in the online first edition of the New England Journal of Medicine [1]. The National Institute of Neurological Disorders and Stroke (NINDS), part of the National Institutes of Health, funded the trial. The medical regimen included daily blood-thinning medications and aggressive control of blood pressure and cholesterol.. New enrollment in the study was stopped in April because early data showed significantly more strokes and deaths occurred among the stented patients at the 30-day mark compared to the group who received the medical management alone.. ...
In this work, the stents-induced mechanical responses of a patient-specific common carotid artery (CCA) were evaluated through computational simulation. The realistic 3D geometry of the artery was constructed from the MRI data. Two types of self-expanding stent design (open-cell and closed-cell) were used to restore the blood flow inside the 60% stenosed artery. The resulting lumen gain, dog-boning effect and arterial stress were estimated. Results suggested that the artery was straightened after stent implantation, and the open-cell design led to bigger lumen gain, better conformability, and less dog-boning effect. This work may facilitate the development of new stent designs.. Copyright © 2011 by ASME ...
Percutaneous carotid angioplasty and stenting (CAS) has been used to improve cerebral circulation and autoregulation. However, whether CAS ameliorates the autonomic regulatory dynamics remains unclear. This prospective study examines the neurocardiov
Older patients with clogged heart arteries may have a little lower death risk over time if they get bypass operations instead of angioplasty and stents to fix the problem, new research suggests. Its not the kind of study that gives conclusive evidence, but doctors say it gives a "real world" look at how people fare in ordinary practice. As such, it could tip the balance toward surgery for patients considering the choice, especially because research already shows bypass gives a better and longer lasting result for people with multiple blockages. In a bypass operation, doctors move healthy blood vessels from other parts of the body to detour around clogged arteries supplying blood to the heart. Angioplasty treats the problem via a tube pushed through a blood vessel. A tiny balloon is inflated to flatten the clog and a mesh scaffold, a stent, is placed to prop the artery open. Researchers compared these approaches using records on 190,000 Medicare patients with two or three blockages - the largest ...
Angioplasty with stenting (1-2 stent) in stenosis of a renal artery (costs for program #178141) ✔ University Hospital Rechts der Isar of the Munich Technical University ✔ Department of Vascular Surgery ✔ BookingHealth.com
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A stent is a wire-mesh tube used to open a coronary artery during angioplasty, a process for the removal or compression of plaque. Their design is of significance for percutaneous transluminal angioplasty with stenting. During this procedure, a stent is deployed into the blood vessel by means of a balloon. The expanded stent acts as a scaffold that keeps the blood vessel open.. During this procedure, damage can be inflicted on the artery by both the nonuniform expansion of the stent, as well as by its foreshortening. To check the viability of a stent design, you can study the deformation process under the influence of the radial pressure that expands the stent. With this model you can both monitor the dogboning and foreshortening effects, and draw conclusions on how to change the geometry design parameters for optimum performance.. ...
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An angioplasty apparatus for facilitating accurate placement of a lumen stent for dilating a stenosis, the apparatus includes arcuate low pressure balloon segment(s) connected at a distal end of a gu
The present invention relates to a device for protected angioplasty, intended for the implantation of luminal endoprosthesis (or stent) in critical areas such as carotid or vertebral arteries, where protection of downstream-situated organs is highly desirable. The device comprises a central stent pusher part comprising a microcatheter bearing at its distal end an atraumatic tip, the atraumatic tip being prolonged by a tip balloon part comprising an inflatable occlusive balloon which may be inflated with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extending at the proximal the of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of the fluid reaches a predetermined level.
Research Report on Europe Cerebral Balloon Angioplasty & Stent Market Report 2017. The Report includes market price, demand, trends, size, Share, Growth, Forecast, Analysis & Overview.
Dr. Myla describes the teams experience with the new embolic protection device: "The low crossing profile and integration of a primary guidewire shortened procedure time, and facilitated lesion crossing and filter placement, especially in the presence of tortuous anatomy. The 0.014" guidewire tip demonstrated good torque response and the guidewire provided excellent support…it was ideal for procedures in which tortuosity would preclude placement of a more structured DPD with a stiff delivery catheter. Conformability of the expanded fiber network to the vessel wall and the short landing zone of the device made it ideal for challenging anatomy distal to the lesion. Anecdotally, investigators have commented the FiberNet EPS resulted in fewer vessel spasms.". Article: "Carotid Artery Stenting in High Surgical Risk Patients using the FiberNet® Embolic Protection System: The EPIC Trial Results." Subbarao Myla, J. Michael Bacharach, Gary M. Ansel, Eric J. Dippel, Daniel J. McCormick, Jeffrey J. ...
Recent data on carotid artery stenting have been encouraging, and technologies and studies on the horizon also seem promising. However, good outcomes are dependent on the experience of the operator and on appropriately selecting patients. In this Q&A, Chris Metzger, MD, shares his thoughts on recent studies and on best practices for performing carotid artery stenting. Dr Metzger is an interventional cardiologist at the Wellmont CVA Heart Institute in Kingsport, Tennessee, and he will be speaking on this topic at the International Symposium on Endovascular Therapy (ISET) in Hollywood, Florida.. Are there any changes in recent data or technology advances that you want to highlight?. I am very excited that the newest data supplements the safety, durability, and effectiveness of carotid stenting. The CREST 10-year data were published and showed that carotid stenting was at least equivalent to carotid endarterectomy at 10 years in terms of preventing strokes and keeping the carotid artery open. ...
cost-effective BY Kathi Baker. Emory cardiologists are the first in the United States to combine the technology of a patients MRI (magnetic resonance imaging) scan with a training simulator to "rehearse" the high-risk carotid stenting procedure before actual surgery takes place. This innovative use of simulation technology helps the physician prepare for the procedure and reduces the risk of complications for the patient.. Carotid arteries are the primary blood vessels to the brain. When they become clogged with plaque, it often is necessary to open the vessels by implanting a wire mesh tube called a stent. While carotid stenting is a difficult procedure, it is the most effective way for doctors to prop open the artery and restore blood flow. Carotid stenting was approved by the U.S. Food and Drug Administration (FDA) in September 2004 as an alternative to carotid endarterectomy (surgically removing plaque from the carotid artery). Carotid stenting requires a high-degree of technical skill. The ...
The answer to the question "What is the optimal management of patients with carotid artery disease?" remains hotly debated and contentious. In the 1990s, the elements of this debate were focused on the relative merits of carotid endarterectomy (CEA) versus medical therapy (basically, aspirin), which most physicians considered settled by 4 randomized clinical trials in patients with symptomatic (1,2) and asymptomatic (3,4) carotid stenosis. Taken together, these trials formed the base of evidence that supported the recommendations for CEA in symptomatic carotid stenosis ,50% and in asymptomatic carotid stenosis ,70%. In the last 15 years, the findings of these studies have been challenged on the basis of 2 important therapeutic innovations: one in pharmacological approaches to coronary, peripheral, and cerebrovascular atherosclerosis, and the other in the development of minimally invasive techniques for carotid revascularization relying on carotid artery stenting (CAS) and embolic protection ...
Carotid artery stenting is associated with a higher microembolic burden than carotid endarterectomy. The rate and procedural stage of highest risk depends on the embolic protection device used," said Sumaira Macdonald, consultant vascular radiologist and honorary clinical senior lecturer, Newcastle, UK, at the annual iCON meeting in Phoenix, USA, in February.. She presented the results of a recent non-randomised comparison of carotid endarterectomy, filter-protected carotid artery stenting and carotid artery stenting with flow reversal utilising microembolic signals on transcranial Doppler as primary outcome event.. Results from the study (Gupta N, Corriere MA, Dodson TF et al. JVS Dec 1st 2010 [Epub]) showed that carotid endarterectomy had the fewest microembolic signals (largely in the post-protection phase). This was followed by flow reversal carotid artery stenting; in this case, signals detected were mostly in the pre-protection phase. Of the three procedures, filter-protected carotid ...

Angioplasty and stent placement - heart: MedlinePlus Medical EncyclopediaAngioplasty and stent placement - heart: MedlinePlus Medical Encyclopedia

Angioplasty is a procedure to open narrowed or blocked blood vessels that supply blood to the heart. These blood vessels are ... PCI; Percutaneous coronary intervention; Balloon angioplasty; Coronary angioplasty; Coronary artery angioplasty; Percutaneous ... Angioplasty is generally safe, but ask your doctor about the possible complications. Risks of angioplasty and stent placement ... Angioplasty is often performed when you go to the hospital or emergency room for chest pain, or after a heart attack. If you ...
more infohttps://medlineplus.gov/ency/article/007473.htm

Angioplasty - WikipediaAngioplasty - Wikipedia

Angioplasty, also known as balloon angioplasty and percutaneous transluminal angioplasty (PTA), is a minimally invasive, ... Carotid angioplasty[edit]. Main article: Carotid artery stenting. Carotid artery stenosis is treated with angioplasty in a ... Peripheral angioplasty[edit]. Peripheral angioplasty refers to the use of a balloon to open a blood vessel outside the coronary ... Venous angioplasty[edit]. Angioplasty is occasionally used to treat venous stenosis, such as stenosis of the subclavian vein ...
more infohttps://en.wikipedia.org/wiki/Balloon_angioplasty

AngioplastyAngioplasty

Medical procedure used to widen blood vessels that have been narrowed or blocked. During the procedure, a balloon-tipped catheter is inserted into the body (usually through a small incision in the groin). The catheter is guided to the site of the blockage using X-rays and injected dye. The balloon on the catheter is then gently inflated to flatten the blockage and open the blood vessel ...
more infohttps://labtestsonline.org/glossary/angioplasty

Angioplasty | Encyclopedia.comAngioplasty | Encyclopedia.com

There are various types of angioplasty. The specific names of these procedures are derived from the type of equipment used and ... Definition Angioplasty is a term describing a procedure used to widen vessels narrowed by stenoses or occlusions. ... Angioplasty Gale Encyclopedia of Medicine, 3rd ed. COPYRIGHT 2006 Thomson Gale. Angioplasty. Definition. Angioplasty is a term ... angioplasty (ăn´jēōplăs´tē), any surgical repair of a blood vessel, especially balloon angioplasty or percutaneous transluminal ...
more infohttps://www.encyclopedia.com/medicine/divisions-diagnostics-and-procedures/medicine/angioplasty

angioplastyangioplasty

... is a keyhole surgery procedure for repairing damaged or diseased blood vessels. It involves the use of a catheter ... Coronary angioplasty. Coronary angioplasty is used to restore blood flow through a narrowed or blocked artery in the heart. It ... The disadvantage of angioplasty is that the artery may close again. If this happens, you will need a second angioplasty or ... When is coronary angioplasty done?. Your doctor may consider angioplasty if lifestyle changes and medicines do not improve your ...
more infohttp://www.daviddarling.info/encyclopedia/A/angioplasty.html

Angioplasty | medicine | Britannica.comAngioplasty | medicine | Britannica.com

Performed on a coronary artery, angioplasty is a less invasive alternative to coronary bypass ... Angioplasty, therapeutic opening of a blocked blood vessel. Usually a balloon is inflated near the end of a catheter (see ... Angioplasty is also used to expand a severely obstructed heart valve.. Learn More in these related Britannica articles:. * ... Often angioplasty is combined with the placement of a stent, in which a small flexible mesh tube (usually made of metal) is ...
more infohttps://www.britannica.com/science/angioplasty

Angioplasty, Information about AngioplastyAngioplasty, Information about Angioplasty

The procedure is similar to coronary angioplasty.. The individual undergoing an angioplasty enters the hospital the morning of ... After angioplasty, an observation period is required in a cardiac care unit or a hospital room for several hours up to two days ... If the angioplasty catheter is inserted into the femoral artery in the groin, the individual is instructed to lie flat and keep ... Angioplasty is a medical procedure used to widen an artery that is narrowed or blocked. A narrowed or blocked artery prevents ...
more infohttp://www.faqs.org/health/topics/49/Angioplasty.html

Balloon Angioplasty | Encyclopedia.comBalloon Angioplasty | Encyclopedia.com

... balloon Balloon angioplasty is a medical technique used to widen coronary (heart) arteries that have been narrowed by plaque ( ... Angioplasty, Balloon Medical Discoveries COPYRIGHT 1997 Thomson Gale. Angioplasty, balloon. Balloon angioplasty is a medical ... Laser angioplasty is currently approved for use in leg arteries only. One drawback is that laser angioplasty carries a ... Angioplasty, also known as "Percutaneous Transluminal Coronary Angioplasty" (PTCA), rapidly came into widespread use around the ...
more infohttps://www.encyclopedia.com/medicine/divisions-diagnostics-and-procedures/medicine/balloon-angioplasty

Renal AngioplastyRenal Angioplasty

... is a procedure performed to improve blood flow to the kidney. A balloon catheter is ...
more infohttps://www.emoryhealthcare.org/radiology/renal-angioplasty.html

HealthDay - Angioplasty NewsHealthDay - Angioplasty News

An angioplasty is done to open an artery blocked by plaque and restore blood flow to the heart. ... Angioplasty is a medical procedure used to open an artery that is narrow or blocked. Over time, plaque can build up in the ... How Angioplasty Works. Angioplasty is performed with a catheter, which is a thin tube that is inserted into the artery. This ... Angioplasty News. Angioplasty is a medical procedure used to open an artery that is narrow or blocked. Over time, plaque can ...
more infohttps://consumer.healthday.com/cardiovascular-and-health-information-20/angioplasty-news-26/

Percutaneous Transluminal AngioplastyPercutaneous Transluminal Angioplasty

The angioplasty was done to the popliteal artery. The code I would use would be 37224.. HTH. Heather Shaw, CPC, CIRCC ... Status post balloon angioplasty with a 5.0 followed by a 6.0 balloon now. reveals less than 10% residual stenosis, markedly ... angioplasty was performed to 14 atmospheres for severe diffuse in-stent. restenosis. Stenting was from popliteal to proximal ... Diagnostic Aortogram w/runoff w/percutaneous angioplasty lt peroneal w/left SFA. By armedical in forum Cardiology ...
more infohttps://www.aapc.com/memberarea/forums/71060-percutaneous-transluminal-angioplasty.html

Balloon angioplastyBalloon angioplasty

A balloon angioplasty opens blocked blood vessels by pressing plaque against the artery wall. It is a procedure that uses local ... After the balloon angioplasty, your doctor may use another catheter to implant a stent. A stent is a tiny mesh tube that holds ... During the angioplasty, your doctor or nurse might ask you question-to make sure you are not feeling pain, for instance. You ... During the angioplasty, the doctor uses a special catheter with a small balloon on the end. The doctor inflates the balloon ...
more infohttp://www.kswo.com/story/6652425/balloon-angioplasty/

Angioplasty | HowStuffWorksAngioplasty | HowStuffWorks

Angioplasty is a procedure to ease the flow of blood through arteries. Learn about this procedure and how the use of stents ... In the past, angioplasty failed to keep blood vessels open in approximately 30 percent of cases, requiring a second procedure, ... In angioplasty, also called percutaneous coronary intervention (PCI), a catheter with a balloon attached is guided through the ... Regardless of the success of an angioplasty procedure and the placement of a stent, it is not a substitute for a lifetime plan ...
more infohttps://health.howstuffworks.com/medicine/surgeries-procedures/coronary-heart-disease-surgeries-and-procedures1.htm

angioplasty - Science-Based Medicineangioplasty - Science-Based Medicine

Tag: angioplasty. Clinical TrialsSurgical Procedures. ORBITA: Another clinical trial demonstrating the need for sham controls ... This clinical trial tested coronary angioplasty and stenting versus optimal medical management in patients with single-vessel ...
more infohttps://sciencebasedmedicine.org/tag/angioplasty/

crytotherapy after balloon angioplastycrytotherapy after balloon angioplasty

This patient had iliac balloon angioplasty done also balloon cryotherapy done during the same ope ... This is the first time i ever seen cryotherapy done after angioplasty.. any help would be so greatly apprectiated! ... This patient had iliac balloon angioplasty done also balloon cryotherapy done during the same operation. ...
more infohttps://www.aapc.com/memberarea/forums/16390-crytotherapy-balloon-angioplasty.html

Heart-Encyclopedia - balloon angioplastyHeart-Encyclopedia - balloon angioplasty

balloon angioplasty A balloon angioplasty is a medical procedure in which a balloon is used to open narrowed or blocked blood ...
more infohttp://www.heart.org/HEARTORG/Encyclopedia/Heart-Encyclopedia_UCM_445084_Encyclopedia.jsp?title=balloon%20angioplasty

Angioplasty | Definition of Angioplasty at Dictionary.comAngioplasty | Definition of Angioplasty at Dictionary.com

... coronary angioplasty to widen an artery blocked by plaque. See more. ... Angioplasty definition, the repair of a blood vessel, as by inserting a balloon-tipped catheter to unclog it or by replacing ... coronary angioplasty to widen an artery blocked by plaque. ...
more infohttps://www.dictionary.com/browse/angioplasty

angioplasty (thing) by CentrX - Everything2.comangioplasty (thing) by CentrX - Everything2.com

angioplasty (thing). See all of angioplasty, no other writeups in this node. ...
more infohttps://everything2.com/user/CentrX/writeups/angioplasty

Coronary AngioplastyCoronary Angioplasty

Know what is a Coronary Angioplasty? Why is it done?, Its procedure and treatment in india. Consult best cardiologists and ... Angioplasty can improve symptoms caused by of blocked heart arteries, such as chest pain and shortness of breath. Angioplasty ... What is Coronary Angioplasty?. Coronary Angioplasty, also called Percutaneous Coronary Intervention, is a procedure used to ... Why is a Coronary Angioplasty done?. Angioplasty is performed to treat a type of heart disease called atherosclerosis. ...
more infohttps://www.apollohospitals.com/patient-care/patient-information-guide/coronary-angioplasty

Renal Artery Angioplasty: Background, Indications, ContraindicationsRenal Artery Angioplasty: Background, Indications, Contraindications

Percutaneous transluminal angioplasty (PTA) of the renal artery has become an increasingly widespread peripheral vascular ... encoded search term (Renal Artery Angioplasty) and Renal Artery Angioplasty What to Read Next on Medscape. Related Conditions ... Renal Artery Angioplasty. Updated: Sep 28, 2018 * Author: Vibhuti N Singh, MD, MPH, FACC, FSCAI; Chief Editor: Kyung J Cho, MD ... Renal artery angioplasty and stent placement: predictors of a favorable outcome. Am Heart J. 2000 Jan. 139 (1 Pt 1):64-71. [ ...
more infohttps://emedicine.medscape.com/article/1817671-overview

Heart-and-Stroke-Encyclopedia - angioplastyHeart-and-Stroke-Encyclopedia - angioplasty

angioplasty Angioplasty, also known as percutaneous intervention, is a procedure in which a thin tube called a catheter is ... Another type of angioplasty is a laser angioplasty; instead of a balloon, the catheter carries a laser tip that sends pulsating ... While doing an angioplasty, doctors may also implant a mesh tube called a stent to help prop open the artery, reducing the ...
more infohttp://www.heart.org/HEARTORG/Encyclopedia/Heart-and-Stroke-Encyclopedia_UCM_445084_Encyclopedia.jsp?levelSelected=1&title=angioplasty

buttock claudication post-angioplasty | allnursesbuttock claudication post-angioplasty | allnurses

... might he be experiencing buttock claudication after having angioplasty and 20 why are his s/s so much better while his ABI ... buttock claudication post-angioplasty Help Select the $100 Cartoon Caption Winner!. WIN $150! 2018 Winter Nursing Article ... In follow-up, the patient was quite pleased with the angioplasty. He was able to walk about a mile without great difficulty. Of ... why a patient might he be experiencing buttock claudication after having angioplasty and 20 why are his s/s so much better ...
more infohttp://allnurses.com/cardiac-nursing/buttock-claudication-post-482729.html

Patent US5226430 - Method for angioplasty - Google PatentsPatent US5226430 - Method for angioplasty - Google Patents

The region surrounding the balloon utilized in percutaneous transluminal coronary angioplasty is heated by means within the ... 1986, Laser Angioplasty: Success Remains Elusive Lasers & Applications, pp. 32 36.. 57. Jain, Jun. 1984, "Laser Angioplasty ... As mentioned hereinbefore, during percutaneous transluminal coronary angioplasty or indeed any type of balloon angioplasty and ... Angioplasty balloon with light incisor. US5662712 *. Jun 7, 1995. Sep 2, 1997. Focal, Inc.. Apparatus for intraluminal ...
more infohttp://www.google.com/patents/US5226430?dq=4393663

Patent US5250060 - Angioplasty apparatus - Google PatentsPatent US5250060 - Angioplasty apparatus - Google Patents

An angioplasty apparatus for removing abnormal deposits such as atheromatic plaque from the internal arterial walls is provided ... 1. An angioplasty apparatus for removing deposits of atheromatic plaque from the interior walls of blood vessels comprising:. ... 5. An angioplasty apparatus for removing deposits of atheromatic plaque from the interior walls of blood vessels comprising:. ... 8. An angioplasty apparatus for removing deposits of atheromatic plague from the interior walls of blood vessels comprising:. ...
more infohttp://www.google.com.au/patents/US5250060

Angioplasty and Vascular StentingAngioplasty and Vascular Stenting

Current and accurate information for patients about Angioplasty and Vascular Stenting. Learn what you might experience, how to ... What are Angioplasty and Vascular Stenting?. Angioplasty, with or without vascular stenting, is a minimally invasive procedure ... What are the limitations of Angioplasty and Vascular Stenting?. Angioplasty with vascular stenting is just one way to treat ... In angioplasty, x-ray fluoroscopy or other imaging is used to guide a balloon-tipped catheter (a long, thin plastic tube) into ...
more infohttps://www.radiologyinfo.org/en/info.cfm?pg=angioplasty
  • Since the decision to perform angioplasty may have been made following a diagnostic angiogram, the patient's sensitivity to iodinated contrast media is likely to be known. (encyclopedia.com)
  • If your doctor finds a blockage during your Coronary Angiogram, it is possible that he or she may decide to perform angioplasty and stenting immediately after the angiogram, while your heart is still catheterized. (apollohospitals.com)
  • In a study published in Monday's issue of the Annals of Internal Medicine , they surveyed 153 patients about to have heart specialists examine the insides of their arteries and if needed, perform angioplasty. (go.com)
  • You will also have an imaging test called a Coronary Angiogram to see if your blockages can be treated with angioplasty. (apollohospitals.com)
  • In angioplasty of the aorta (the major abdominal artery) or the iliac arteries (which branch off from the aorta), a small, expandable tube called a stent is usually put in place at the same time. (webmd.com)
  • Angioplasty is occasionally used to treat venous stenosis, such as stenosis of the subclavian vein caused by thoracic outlet syndrome . (wikipedia.org)
  • In contrast, angioplasty presents fewer risks while it saves the arms, legs, and kidneys affected by the impaired circulation. (encyclopedia.com)
  • Angioplasty requires an access vessel, typically the femoral or radial artery or femoral vein , to permit access to the vascular system for the wires and catheters used. (wikipedia.org)
  • If the angioplasty catheter is inserted into the femoral artery in the groin, the individual is instructed to lie flat and keep the affected leg straight for at least six hours. (faqs.org)
  • Angioplasty is generally used when these connections become narrow or blocked. (radiologyinfo.org)
  • Generally, carotid artery stenosis is treated with angioplasty and stenting for high-risk patients in many hospitals. (wikidoc.org)
  • Angioplasty has come to include all manner of vascular interventions that are typically performed percutaneously . (wikipedia.org)
  • There is also typically a recovery period after angioplasty, though it is frequently less extensive than it would be for an open heart surgery. (healthday.com)
  • A balloon angioplasty typically begins with a catheterization. (kswo.com)
  • Angioplasty with or without stenting is commonly used to treat conditions that narrow or block blood vessels and interrupt blood flow. (radiologyinfo.org)
  • 3. Many people complain of vague chest pains following stenting or angioplasty. (medhelp.org)
  • Before the angioplasty, your doctor will assess your medical history and do a physical exam. (apollohospitals.com)
  • Individuals undergoing angioplasty have a remote risk of an allergic reactionto the local anesthetic or the x-ray dye, which can also be harmful to the kidneys. (faqs.org)