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In adults, renal vein thrombosis can be caused by injury to the abdomen or back, as a result of malignant kidney tumors growing into the renal vein, or as a result of kidney diseases
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What age groups does renal vein thrombosis occur in?
Renal vein thrombosis occurs in both infants and adults. Onset of the disorder can be rapid (acute) or gradual.
What causes renal vein thrombosis in children?
In children, renal vein thrombosis almost always occurs rapidly after an episode of severe dehydration.
What is the prognosis for acute renal vein thrombosis?
Most cases of renal vein thrombosis resolve without any permanent damage. Death from renal vein thrombosis is rare,
What is renal vein thrombosis?
Renal vein thrombosis develops when a blood clot forms in the renal vein, which carries blood from the kidneys back to the heart. The disorder is not common.
Can renal vein thrombosis be prevented?
There is no specific prevention for renal vein thrombosis. Preventing dehydration reduces the risk that it will occur.
How is renal vein thrombosis diagnosed?
Renal venography, where a contrast material (dye) is injected into the renal vein before x rays are taken, is one of the best ways to detect renal vein thrombosis.
What are the symptoms of gradual onset renal vein thrombosis in adults?
In adults, when the onset of the disorder is gradual, there is a slow decrease in kidney function, and protein appears in the urine.
What is portal vein thrombosis?
The development of a blood clot in the vein that brings blood into the liver. Untreated portal vein thrombosis causes portal hypertension.
What are the symptoms of renal artery stenosis?
Acute onset of renal vein thrombosis at any age causes pain in the lower back and side, fever, bloody urine, decreased urine output, and sometimes kidney failure
How is renal vein thrombosis treated?
The enzyme streptokinase may be given to help dissolve the renal clot. Anticoagulant medications are usually prescribed to prevent clots from recurring.
what is a blood clot attached to the wall of a deep vein?
Deep Vein ThrombosisDeep vein thrombosis
Renal vein thrombosis?
DefinitionRenal vein thrombosis is a blood clot that develops in the vein that drains blood from the kidney.Alternative NamesClot in the renal vein; Occlusion - renal veinCauses, incidence, and risk factorsRenal vein thrombosis is a fairly uncommon situation that may happen after trauma to the abdomen or back, or it may occur due to:Scar formationStrictureTumorIt may be associated with nephrotic syndrome.In some children, it occurs after severe dehydration and is a more serious condition than in adults. Dehydration is the most common cause of renal vein thrombosis in infants.SymptomsBloody urineDecreased urine outputFlank pain or low back painSigns and testsAn examination may not reveal the specific problem, but may indicate nephrotic syndrome or other causes of renal vein thrombosis.Abdominal CT scan, abdominal MRI, or abdominal ultrasound may show obstruction of the renal veinUrinalysis may show large quantities of protein in the urine, or red blood cells in the urineX-ray of the kidney veins (venography) may show renal vein thrombosis.TreatmentThe treatment is focused on preventing new clot formations and reducing the risk of the clot traveling to other locations in the body (embolization).You may get medications that prevent blood clotting (anticoagulants) to stop new clots from forming. Your doctor may recommend bedrest or limited activity for a brief period.Expectations (prognosis)Renal vein thrombosis usually gets better over time without permanently injuring the kidneys.ComplicationsAcute renal failure (if thrombosis occurs in a dehydrated child)Embolization of the blood clot to the lungs (pulmonary embolism)Formation of new blood clotsCalling your health care providerCall your health care provider if you have symptoms of renal vein thrombosis.If you have experienced renal vein thrombosis, call your health care provider if you develop decreased urine output, difficulty breathing, or other new symptoms.PreventionThere is no specific prevention for renal vein thrombosis. Maintaining fluids in the body to avoid dehydration may help to reduce its risk.ReferencesKanso AA, Hassan NMA, Badr KF. Microvascular and macrovascular diseases of the kidney. In: Brenner BM, ed. Brenner and Rector's The Kidney. 8th ed. Philadelphia, Pa; Saunders Elsevier; 2007: chap 32.
