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Topic: Venous thrombosis

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	Venous thrombosis - Wikipedia, the free encyclopedia
		A venous thrombosis is a blood clot that forms within a vein.
		Thrombosis is a specific medical term for a blood clot that remains in the place where it formed.
		Superficial venous thromboses can cause discomfort but generally do not cause serious consequences, unlike the deep venous thromboses (DVTs) that form in the deep veins of the legs or in the pelvic veins.
	en.wikipedia.org /wiki/Venous_thrombosis (215 words)

	Thrombosis - Wikipedia, the free encyclopedia
		Thrombosis is the formation of a clot or thrombus inside a blood vessel, obstructing the flow of blood through the circulatory system.
		The formation of a thrombus is usually caused by an injury to the vessel's wall, either by trauma or infection, and by the slowing or stagnation of blood flow past the point of injury.
		If a bacterial infection is present at the site of thrombosis, the thrombus may break down, spreading particles of infected material throughout the circulatory system (pyemia, septic embolus) and setting up metastatic abscesses wherever they come to rest.
	en.wikipedia.org /wiki/Thrombosis (265 words)

	Chapter 8 - Section 5: First Principles of Gastroenterology
		Conditions that predispose to mesenteric vein thrombosis are (1) severe intra-abdominal sepsis, (2) hypercoagulable state (i.e., polycythemia vera) and (3) portal venous stasis (secondary to portal hypertension associated with hepatic cirrhosis, or to extrinsic compression of the venous system secondary to a tumor mass).
		Thrombosis of the superior or inferior mesenteric vein alone is usually not sufficient to produce intestinal ischemia.
		The surgeon should be aware that the venous thrombosis may extend beyond the limits of the gross infarction.
	gastroresource.com /GITextbook/en/chapter8/8-5.htm (363 words)

	Venous Thrombosis
		It is estimated that venous thrombosis and pulmonary embolism are associated with 300,000 to 600,000 hospitalizations a year and that as many as 50,000 individuals die each year as a result of pulmonary embolism.
		Both venous thrombosis and pulmonary embolism are often silent and difficult to detect by clinical examination.
		Venous thrombosis and PE constitute major causes of morbidity associated with many common medical conditions and surgical procedures.
	www.drlera.com /venous_thrombosis.htm (2703 words)

	eMedicine - Deep Venous Thrombosis and Thrombophlebitis : Article by Donald Schreiber, MD, CM (Site not responding. Last check: 2007-10-23)
		Venous ulceration and venous insufficiency of the lower leg, which are long-term complications of DVT, affect 0.5% of the entire population.
		The bedside diagnosis of venous thrombosis is insensitive and inaccurate.
		The major ultrasonographic criterion for detecting venous thrombosis is failure to compress the vascular lumen, presumably because of the presence of occluding thrombus.
	www.emedicine.com /emerg/topic122.htm (8261 words)

	Venous thrombosis (Site not responding. Last check: 2007-10-23)
		Venous thrombosis most commonly forms in the veins of the legs.
		Venous thrombosis can cause swelling and pain of the leg in which it forms.
		Venous thrombosis of the legs is diagnosed by ultrasound.
	www.shands.org /health/surgeries/100168.html (781 words)

	THE MERCK MANUAL, Sec. 16, Ch. 212, Peripheral Vascular Disorders
		Prolonged venous thrombosis may lead to chronic venous insufficiency, in which there is edema, pain, stasis pigmentation, stasis dermatitis, and stasis ulceration.
		Thrombosis is virtually always accompanied by phlebitis, thus the terms thrombosis and thrombophlebitis are used interchangeably.
		Thrombosis may occur on the basis of coagulation abnormalities that may be familial (see Ch.
	www.merck.com /mrkshared/mmanual/section16/chapter212/212g.jsp (1612 words)

	MSRGSNet/Genetic Drift/Venous Thrombosis and the Factor V (Leiden) Mutation (Site not responding. Last check: 2007-10-23)
		Venous thrombosis is a multifactorial condition caused by a combination of genetic, aquired or environmental influences.
		Clinical presentation of thrombosis in affected individuals is similar for all the disorders and the thrombosis is often recurrent.
		Thrombosis incidence is increased 7-fold in heterozygotes and 80-fold in homozygotes compared to incidence in people without the mutation.
	www.mostgene.org /gd/gdvol14b.htm (1355 words)

	Cerebral Venous Thrombosis (Site not responding. Last check: 2007-10-23)
		This explains the frequent occurrence of CVT as a complication of infective pathologies in the catchment areas, eg, cavernous sinus thrombosis in the facial infections, lateral sinus thrombosis in chronic otitis media and sagittal sinus thrombosis in scalp infections.
		Superficial cortical veins drain into superior sagittal sinus against the blood flow in the sinus, thus causing turbulence in the blood stream that is further aggravated by the presence of fibrous septa present at the inferior angle of the sinus.
		Objectives of investigations are a) diagnosis of cerebral vein/sinus thrombosis; b) identification of vein or sinus involved; c) identification of underlying pathogenic factors; d) evaluation of CNS damage.
	www.indegene.com /Int/FeatArt/indIntFeatArt8.html (3362 words)

	About thrombosis: venous thrombosis (Site not responding. Last check: 2007-10-23)
		The most common type of venous thrombosis is a deep vein thrombosis (DVT) in the leg.
		A major concern is that someone with venous thrombosis may develop a pulmonary embolism.
		In the UK, venous thrombosis and pulmonary embolism are the main cause of death during pregnancy.
	www.thrombosis-charity.org.uk /aboutthrom_venous.htm (558 words)

	GeneCare - genetic testing for venous thrombosis risk (Site not responding. Last check: 2007-10-23)
		Inherited abnormalities of the blood clotting mechanism increase the risk of venous thrombosis, especially in the deep veins of the legs.
		Risk for venous thrombosis in Factor V Leiden mutation carriers increases from approximately 7 to 40 times for oral contraceptive users and 15 times with use of hormone replacement therapy.
		The term "Economy Class Syndrome" is applied to deep vein thrombosis (DVT) in the legs and the subsequent potentially fatal involvement of the lungs by migration of the clot (pulmonary embolism /PE).
	www.genecare.co.za /economy.html (1305 words)

	UpToDate Patient information: Venous thrombosis
		— Venous thrombosis is a condition in which a blood clot (thrombus) forms in a vein.
		Venous thrombosis is infrequent before puberty in patients with inherited thrombophilia.
		Not all patients with venous thrombosis are alike, and it is important that your situation is evaluated by someone who knows you as a whole person.
	patients.uptodate.com /topic.asp?file=blod_dis/7159 (2936 words)

	Mesenteric venous thrombosis - Washington DC
		Mesenteric venous thrombosis occurs when a blood clot blocks off one of the mesenteric veins, which are the major veins that drain blood from the intestine.
		The mainstay of treatment for mesenteric venous thrombosis is the administration of medication that thins the blood.
		The most feared complication of mesenteric venous thrombosis is intestinal ischemia, in which some or all of the intestine dies because of poor blood supply from the blocked mesenteric veins.
	www.whcenter.org /15631.cfm (486 words)

	Deep Venous Thrombosis
		Deep Vein Thrombosis is the formation of a thrombus (blood clot) within a deep vein, commonly in the thigh or calf.
		The blockage, known as a thrombosis, may cause no noticeable symptoms, or it may cause pain, numbness, coldness, tingling or swelling in an arm or leg, or poor function in an affected organ.
		A deep vein thrombosis is a blood clot that forms in a main vein that returns blood flow from the extremities to the heart and lungs and may grow big enough to completely block the vein.
	www.via-med.com /dvt.aspx (2363 words)

	Thrombosis
		High antibody levels to prothrombin imply a risk of deep venous thrombosis and pulmonary embolism in middle-aged men--a nested case-control study.
		The antibodies were measured in stored serum samples from 265 cases of deep venous thrombosis of the lower extremity or pulmonary embolism occurring during a median follow-up of about 7 years and from 265 individually matched controls.
		Linoleic acid, in high amounts, is known to inhibit the Delta6 fatty acid desaturase enzyme and with the competition between n-6 and n-3 fatty acids for the enzymes of desaturation and elongation it does focus on a high n-6/n-3 ratio as a critical factor in both insulin resistance and atherosclerosis.
	www.lef.org /protocols/abstracts/abstr-104a.html (9994 words)

	thrombosis (Site not responding. Last check: 2007-10-23)
		The prevalence of the mutation is 1% to 2% in white populations, and the mutation is associated with an increased risk of venous thrombosis and myocardial infarction.
		In children venous thrombosis appears almost exclusively in association with venous catheters, with an exception of the renal vein thrombosis of the newborn, which has an unknown etiology.
		The prevalence of homozygotes among patients with venous thrombosis was 11%, odds ratio of 2l93 (95% C.I., 1.23 to 7.01).
	www.up.ac.za /asservices/ais/med/thrombosis.htm (6754 words)

	eMedicine - Cerebral Venous Thrombosis : Article by W Alvin McElveen, MD (Site not responding. Last check: 2007-10-23)
		Background: Thrombosis of the venous channels in the brain is an uncommon cause of cerebral infarction relative to arterial disease but is an important consideration because of its potential morbidity.
		Pathophysiology: Knowledge of the anatomy of the venous system is essential in evaluating patients with venous thrombosis, since symptoms associated with the condition are related to the area of thrombosis.
		Thrombosis of the superior sagittal (longitudinal) sinus may present with unilateral paralysis that then extends to the other side secondary to extension of the clot into the cerebral veins.
	www.emedicine.com /NEURO/topic642.htm (4911 words)

	Venous Thrombosis Data - Venous Thrombosis Directory (Site not responding. Last check: 2007-10-23)
		Idiopathic venous thrombosis may be a sign of a malignancy.
		It is estimated that venous thrombosis and pulmonary embolism are associated with.
		Venous thrombosis like any disease comes about as a malfunction of one or more.
	www.strokes-guide.info /venous-thrombosis.html (812 words)

	Cerebral venous sinus thrombosis -- Kimber 95 (3): 137 -- QJM
		Pulmonary embolism from a dural sinus thrombosis is uncommon
		Superior sagittal sinus thrombosis in a patient heterozygous for the novel 20210A allele of the prothrombin gene.
		Carotid artery stenoses and thrombosis secondary to cavernous sinus thromboses in Fusobacterium necrophorum meningitis.
	qjmed.oxfordjournals.org /cgi/content/full/95/3/137 (2909 words)

	Venous Thrombosis Infarction Web-Site \| Venous Thrombosis Infarction Content (Site not responding. Last check: 2007-10-23)
		Cerebral venous thrombosis, as well as the thrombosis of dural venous sinuses, occurs infrequently, and is one of the causes of hemorrhagic cerebral infarction.1.
		Veins, causing obstruction of venous drainage and elevation of venous pressure 2.
		That the venous thrombosis may extend beyond the limits of the gross infarction.
	www.strokes-guide.info /venous-thrombosis-infarction.html (825 words)

	What Is Venous Thrombosis? (Site not responding. Last check: 2007-10-23)
		Venous thrombosis is a blood clot that develops in the veins.
		The two most common types of venous thrombosis are deep vein thrombosis (DVT) and pulmonary embolism (PE).
		Deep vein thrombosis, or DVT, is a blood clot in the veins of the body.
	www.dnadirect.com /resource/conditions/thrombophilia/GH_Thr_What_Is_Venous.jsp (344 words)

	CEREBRAL VENOUS THROMBOSIS
		We focused on risk factors relevant for cerebral arterial ischemia and venous thrombosis, history of previous cerebral or systemic venous occlusive events, topography of involved cerebral venous structures and laboratory evidence of inflammatory or autoimmune conditions.
		Nine of the patients with multiple venous sinus thrombosis, had venous infarct in MRI studıes and five of them were hemorrhagic.
		Koch C.A; Papilledema and proteinuria in cerebral venous thrombosis, Eur.
	www.med.ege.edu.tr /~norolbil/2000/NBD13000.html (2262 words)

	Deep Venous Thrombosis -- López et al. 2004 (1): 439 -- Hematology
		of venous thrombi: (1) an individual’s baseline propensity
		The risk of recurrent venous thromboembolism in carriers and non-carriers of the G1691A allele in the coagulation factor V gene and the G20210A allele in the prothrombin gene.
		Residual venous thrombosis as a predictive factor of recurrent venous thromboembolism.
	www.asheducationbook.org /cgi/content/full/2004/1/439 (9078 words)

	Venous thrombosis
		Venous thrombosis is significant cause of morbidity and mortality
		Extensive proximal venous thrombosis and anticoagulation is contraindicated
		Risk of and prophylaxis for venous thromboembolism in hospital patients.
	www.surgical-tutor.org.uk /system/vascular/venous_thromb.htm (834 words)

	MedlinePlus Medical Encyclopedia: Deep venous thrombosis
		It involves the formation of a clot (thrombus) in the larger veins of the area.
		Risks also include a history of polycythemia vera, malignant (cancerous) tumor, and inherited or acquired hypercoagulability (a condition where the blood is more likely to clot).
		Deep venous thrombosis is most common in adults over age 60 but can occur in any age group.
	www.nlm.nih.gov /medlineplus/ency/article/000156.htm (748 words)

	CEREBRAL VENOUS THROMBOSIS (Site not responding. Last check: 2007-10-23)
		Cerebral venous thrombosis (CVT) is less frequent than arterial thrombosis, but may leave sequale or may be fatal if not recognized and treated early.
		Eleven of the patients had multiple venous sinus thrombosis and 8 of these patients revealed venous infarct with neuroimaging studies.
		Single sinus involvement was seen in six patients and none of them had venous infarct.
	www.med.ege.edu.tr /~norolbil/2001/2001_1_8.htm (237 words)

	Deep Venous Thrombosis (DVT)
		Deep venous thrombosis (DVT) is a blood clot in the leg that blocks the normal flow of blood back to the heart.
		Possible signs and symptoms of DVT include swelling of the leg, dilation of the veins, increased skin temperature, pain and tenderness and, rarely, a bluish discoloration of the lower leg.
		This condition is easily and accurately diagnosed with a non-invasive test called a Venous Duplex Study peformed in the Vascular Lab.
	www.thesurgicalchoice.com /vv_thrombosis.htm (194 words)

	Venous Thrombosis
		This guideline on hormone replacement therapy and venous thromboembolism includes epidemiology of hormone replacement therapy and venous thromboembolism, the possible mechanisms of linking HRT and VTE, and recommendations for management of HRT.
		This leaflet provides information about deep vein thrombosis, a condition that arises when a blood clot forms and blocks one of the deep veins in the body, and covers symptoms, causes, diagnosis and treatment.
		This public-orientated fact sheet produced by the charity Lifeblood outlines the risk factors for thrombosis in women who are pregnant or who have just had a baby.
	omni.ac.uk /browse/mesh/D020246.html (1217 words)

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