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Alternative Names Return to topClot in the renal vein; Occlusion - renal vein
Definition Return to top
Renal vein thrombosis is a blood clot that develops in the vein that drains blood from the kidney.
Causes Return to top
Renal vein thrombosis is a fairly uncommon situation that may happen after trauma to the abdomen or back, or it may occur due to:
It 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.
Symptoms Return to top
Exams and Tests Return to top
An examination may not reveal the specific problem, but may indicate nephrotic syndrome or other causes of renal vein thrombosis.
Treatment Return to top
The 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.
Outlook (Prognosis) Return to top
Renal vein thrombosis usually gets better over time without permanently injuring the kidneys.
Possible Complications Return to top
When to Contact a Medical Professional Return to top
Call 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.
Prevention Return to top
There is no specific prevention for renal vein thrombosis. Maintaining fluids in the body to avoid dehydration may help to reduce its risk.Update Date: 11/12/2007 Updated by: Charles Silberberg, D.O., Private Practice specializing in Nephrology, Affiliated with NY Medical College, Division of Nephrology, Valhalla, NY. Review provided by VeriMed Healthcare Network.