Venous thrombosis
Venous thrombosis
Classification & external resources
| ICD-10 |
I80.-I82. |
| ICD-9 |
453 |
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.
Since the veins return blood to the heart, if a piece of a blood clot formed in a vein breaks off it can be transported to the right side of the heart, and from there into the lungs. A piece of thrombus that is transported in this way is an embolism: the process of forming a thrombus that becomes embolic is called a thromboembolism. An embolism that lodges in the lungs is a pulmonary embolism (PE).
Systemic embolisms of venous origin can occur in patients with an atrial or ventricular septal defect, through which an embolus may pass into the arterial system. This is termed a paradoxical emboli.
A pulmonary embolus is a very serious condition that can be fatal if not recognized and treated promptly.
Risk factors
- General
- Older age
- Female gender
- Smoking
- Obesity
- Pregnancy
- Immobilisation
Prevention
Vitamin E may prevent venous thrombosis.[1]
References
- ^ Glynn RJ, Ridker PM, Goldhaber SZ, Zee RY, Buring JE (2007). "Effects of random allocation to vitamin E supplementation on the occurrence of venous thromboembolism: report from the Women's Health Study". Circulation 116 (13): 1497–503. doi:10.1161/CIRCULATIONAHA.107.716407. PMID 17846285.
See also
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|
Circulatory system pathology (I, 390-459) |
| Hypertension |
Hypertensive heart disease - Hypertensive nephropathy - Secondary hypertension (Renovascular hypertension) |
| Ischaemic heart disease |
Angina pectoris (Prinzmetal's angina) - Myocardial infarction - Dressler's syndrome |
| Pulmonary circulation |
Pulmonary embolism - Cor pulmonale |
| Pericardium |
Pericarditis - Pericardial effusion - Cardiac tamponade |
| Endocardium/heart valves |
Endocarditis - mitral valves (regurgitation, prolapse, stenosis) - aortic valves (stenosis, insufficiency) - pulmonary valves (stenosis, insufficiency) - tricuspid valves (stenosis, insufficiency) |
| Myocardium |
Myocarditis - Cardiomyopathy (Dilated cardiomyopathy, Hypertrophic cardiomyopathy, Loeffler endocarditis, Restrictive cardiomyopathy) - Arrhythmogenic right ventricular dysplasia |
Electrical conduction system
of the heart |
Heart block: AV block (First degree, Second degree, Third degree) - Bundle branch block (Left, Right) - Bifascicular block - Trifascicular block
Pre-excitation syndrome (Wolff-Parkinson-White, Lown-Ganong-Levine) - Long QT syndrome - Adams-Stokes syndrome - Cardiac arrest - Sudden cardiac death
Arrhythmia: Paroxysmal tachycardia (Supraventricular, AV nodal reentrant, Ventricular) - Atrial flutter - Atrial fibrillation - Ventricular fibrillation - Premature contraction (Atrial, Ventricular) - Ectopic pacemaker - Sick sinus syndrome |
| Other heart conditions |
Heart failure - Cardiovascular disease - Cardiomegaly - Ventricular hypertrophy (Left, Right) |
| Cerebrovascular diseases |
Intracranial hemorrhage/cerebral hemorrhage: Extra-axial hemorrhage (Epidural hemorrhage, Subdural hemorrhage, Subarachnoid hemorrhage)
Intra-axial hematoma (Intraventricular hemorrhages, Intraparenchymal hemorrhage) - Anterior spinal artery syndrome - Binswanger's disease - Moyamoya disease |
Arteries, arterioles
and capillaries |
Atherosclerosis (Renal artery stenosis) - Aortic dissection/Aortic aneurysm (Abdominal aortic aneurysm) - Aneurysm - Raynaud's phenomenon/Raynaud's disease - Buerger's disease - Vasculitis/Arteritis (Aortitis) - Intermittent claudication - Arteriovenous fistula - Hereditary hemorrhagic telangiectasia - Spider angioma |
Veins, lymphatic vessels
and lymph nodes |
Thrombosis/Phlebitis/Thrombophlebitis (Deep vein thrombosis, May-Thurner syndrome, Portal vein thrombosis, Venous thrombosis, Budd-Chiari syndrome, Renal vein thrombosis, Paget-Schroetter disease) - Varicose veins / Portacaval anastomosis (Hemorrhoid, Esophageal varices, Varicocele, Gastric varices, Caput medusae) - Superior vena cava syndrome - Lymph (Lymphadenitis, Lymphedema, Lymphangitis) |
| Other |
Hypotension (Orthostatic hypotension) |
| See also congenital (Q20-Q28, 745-747) |
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