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Renal vein thrombosis

Definition

Renal vein thrombosis is a blood clot that develops in the vein that drains blood from the kidney.

Alternative Names

Blood clot in the renal vein; Occlusion - renal vein

Causes

Renal vein thrombosis is an uncommon disorder. It may be caused by:

In adults, the most common cause is nephrotic syndrome. In infants, the most common cause is dehydration.

Symptoms

Symptoms may include:

Exams and Tests

An exam may not reveal the specific problem. However, it may indicate nephrotic syndrome or other causes of renal vein thrombosis.

Tests include:

Treatment

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 medicines that prevent blood clotting (anticoagulants). You may be told to rest in bed or cut down on activity for a short time.

If sudden kidney failure develops, you may need dialysis for a short period.

Outlook (Prognosis)

Renal vein thrombosis most often gets better over time without lasting damage to the kidneys.

Possible Complications

Complications may include:

  • Acute renal failure (especially if thrombosis occurs in a dehydrated child)
  • End stage renal disease
  • Blood clot moves to the lungs (pulmonary embolism)
  • Formation of new blood clots

When to Contact a Medical Professional

Call your health care provider if you have symptoms of renal vein thrombosis.

If you have experienced renal vein thrombosis, call your provider if you have:

Prevention

In most cases, there is no specific way to prevent renal vein thrombosis. Keeping enough fluids in the body may help reduce risk.

Aspirin is sometimes used to prevent renal vein thrombosis in people who have had a kidney transplant. Blood thinners such as warfarin may be recommended for some people with chronic kidney disease.

References

DuBose TD Jr, Santos RM. Vascular disorders of the kidney In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 125.

Ruggenenti P, Cravede P, Remuzzi G. Microvascular and macrovascular diseases of the kidney. In: Taal MW, Chertow GM, Marsden PA, et al, eds. Brenner and Rector's The Kidney. 9th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 34.

Review Date:5/19/2015
Reviewed By:Charles Silberberg, DO, private practice specializing in nephrology, affiliated with New York Medical College, Division of Nephrology, Valhalla, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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