(n.) The obstruction of a blood vessel by a clot formed at the site of obstruction; -- distinguished from embolism, which is produced by a clot or foreign body brought from a distance.
Example Sentences:
(1) This should not be a serious limitation to the application of the RIA in the detection of venous thrombosis.
(2) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
(3) At present it may be concluded that ORT per se does not place the postmenopausal women at greater risk from developing arterio-venous thrombosis.
(4) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
(5) We describe 10 patients with cerebral venous thrombosis: two had protein S deficiency, one had protein C deficiency, one was in early pregnancy, and there was a single case of each of the following: dural arteriovenous malformation, intracerebral arteriovenous malformation, bilateral glomus tumours, systemic lupus erythematosus, Wegener's granulomatosis, non-Hodgkin's lymphoma.
(6) It is concluded that the transcutaneous ultrasound technique provides a reliable, rapidly available, non-invasive method to confirm the diagnosis of deep vein thrombosis.
(7) Lupus anticoagulant associated with thrombocytopenia, thrombosis or recurrent abortions was diagnosed in 2 epileptic patients chronically treated with anticonvulsant drugs.
(8) A neonate, with a postconceptual age of 29 weeks, suffered thrombosis of the aorta as a consequence of umbilical artery catheterisation.
(9) The increased risk of thrombosis seen in patients with malignancy also was recently confirmed in breast cancer patients undergoing hormonal or chemotherapeutic treatment.
(10) Anticardiolipin antibodies delineate a recently defined syndrome characterized by venous and arterial thrombosis, thrombocytopenia and recurrent fetal loss, usually in the setting of autoimmune disease.
(11) Seventy-one patients with 80 lower limbs clinically suspected of deep venous thrombosis (DVT) were investigated by both Doppler ultrasound and venography.
(12) Thus, photoinduced vascular thrombosis of a large feeding artery leads to the formation of blood-borne factors that acutely alter cerebral vascular permeability.
(13) In conclusion, this study does not establish any indication or any contraindication in terms of hepatic histopathology with the possible exception of hepatic venous thrombosis for the use of oral testosterone treatment in men with alcoholic cirrhosis.
(14) Molsidomine and SIN-1 were tested in a thrombosis model in which thrombi are produced in small mesenteric vessels.
(15) We present 7 cases of digital artery thrombosis with ischemic symptoms.
(16) Thrombosis of the subclavian vein occurs with these cannulae and is usually asymptomatic.
(17) The right atrium thrombosis in the region of Chiari network resulted in the thromboembolism of the left pulmonary artery this being an immediate cause of death.
(18) In order to prevent thrombosis after implantation, anticoagulant therapy is indicated.
(19) To induce thrombosis we damaged the vessel wall over a short segment by compression and exposed the damaged media to the blood stream.
(20) In venous thrombi, soluble fibrin and fibrinogen exhibited maximum thrombus-blood ratios when they were injected 4 hours after thrombus induction; the thrombus-blood ratio was greater for soluble fibrin than it was for fibrinogen when these agents were injected 4, 8, or 24 hours after thrombosis induction.
Thrombus
Definition:
(n.) A clot of blood formed of a passage of a vessel and remaining at the site of coagulation.
(n.) A tumor produced by the escape of blood into the subcutaneous cellular tissue.
Example Sentences:
(1) The potential use of ancrod, a purified isolate from the venom of the Malaysian pit viper, Agkistrodon rhodostoma, in decreasing the frequency of cyclic flow variations in severely stenosed canine coronary arteries and causing thrombolysis of an acute coronary thrombus induced by a copper coil was evaluated.
(2) In the six cases of aortic aneurysm, three had platelet deposition within their aneurysms, and surgery was performed for these positive cases, but one of them had no thrombus.
(3) Magnetic resonance imaging and venacavography appear to be the most sensitive means of identifying tumor thrombus.
(4) In venous thrombi, soluble fibrin and fibrinogen exhibited maximum thrombus-blood ratios when they were injected 4 hours after thrombus induction; the thrombus-blood ratio was greater for soluble fibrin than it was for fibrinogen when these agents were injected 4, 8, or 24 hours after thrombosis induction.
(5) Echocardiograms showed good left ventricular function and a large coil of apparent thrombus in the right atrium prolapsing into the right ventricle.
(6) Removal of left atrial ball thrombus and mitral valve replacement was performed in two patients successfully.
(7) On CT scans the tumor thrombus usually appeared as an endoluminal filling defect surrounded by a rim of contrast material.
(8) Since the antithrombin action of heparin fails to interrupt arterial thrombosis, a mediating role for thrombin (EC 3.4.21.5) in the formation of high-shear platelet-dependent thrombus has been unproven.
(9) Waiting for surgery the patient suffered a syncope that was diagnosed of embolic origin and the left atrial thrombus has disappeared.
(10) The effect of initial perturbation of the thrombus by a guide wire appears to be less important than the thrombus disruption and accelerated thrombolysis caused by the pulsatile delivery system.
(11) Chronic atrial fibrillation is generally thought to cause stroke by atrial thrombus formation with subsequent embolization.
(12) Furthermore apo (a), which shows extensive sequence homology with plasminogen, may promote the deposition of lipoprotein (a) in the artery and interfere with fibrinolytic processes following inappropriate thrombus formation.
(13) Thrombolysis between postoperative day 2 and day 9 seemed to dominate over thrombus formation and propagation.
(14) De-airing of the acute ventricular assist device using the designed port has resulted in thrombus formation at the site of device puncture in three of four ventricular assist devices in place during long-term (more than 72 hours) support.
(15) In deep injury, tears extend from the lumen into the depths of the intima and often enter a lipid pool; in consequence, thrombus initially forms within the plaque, thereby altering its configuration and expanding its volume.
(16) The patency of chronically implanted intravascular cannulae is usually limited by thrombus formation at the cannula tip.
(17) Therapy to eliminate thrombus included surgery (two cases), anticoagulation with warfarin (three cases) and streptokinase thrombolysis (one case).
(18) In 1952, Clarence Agress performed an experiment on dogs to demonstrate his idea that a thrombus in a coronary artery could be dissolved without harm to the myocardium.
(19) This suggested the presence of adherent biologic material, such as a thrombus.
(20) Size of the thrombus, extension of the fibrin net and platelet adhesion are also modified by Defibrotide in 7-day-old thrombi where granulation tissue has replaced the original coagulum.