Acute bilateral obstructive uropathy
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Acute bilateral obstructive uropathy

Definition

Acute bilateral obstructive uropathy is a sudden blockage of the flow of urine from both kidneys. The kidneys continue to produce urine in the normal manner, but because urine does not drain properly, the kidneys start to swell.

See also:

Alternative Names

Urethral obstruction; Acute urethral obstruction; Obstructive uropathy - bilateral - acute

Causes

In men, acute bilateral obstructive uropathy is most often a result of an enlarged prostate. Other causes in men include:

  • Bladder cancer
  • Kidney stones
  • Prostate cancer

Acute bilateral obstructive uropathy is much less common in women, but may be due to:

  • Bladder cystocele
  • Cervical cancer
  • Injury from surgery involving the reproductive organs
  • Pregnancy

Other causes in men and women include:

  • Blood clots
  • Neurogenic bladder
  • Other rare retroperitoneal processes
  • Papillary necrosis
  • Posterior urethral valves in infant boys

Acute bilateral obstructive uropathy occurs in about 5 out of 10,000 people.

Symptoms

Exams and Tests

The doctor will perform a physical exam. The exam may show:

  • Large and full bladder
  • Swollen or tender kidneys
  • Enlarged prostate (men)

There may be signs of chronic kidney failure, high blood pressure, and infection. Fever is common with an infection.

Tests that may be done include:

The following tests may show hydronephrosis (swelling of kidneys):

Treatment

The goal of treatment is to relieve the blockage, which will allow urine to drain from the urinary tract. You may need to stay in a hospital for a short while.

Short-term treatment may include:

  • Antibiotics and other medications to treat symptoms
  • Catheterization-- the placement of a tube into the body to drain urine (See: Urinary catheters)

Long-term treatment involves correcting the cause of the blockage. This may involve:

Surgery may also be needed for other disorders that cause blockage of the urethra or bladder neck.

Outlook (Prognosis)

If the acute obstruction is quickly relieved, symptoms usually go away within hours to days. If untreated, the disorder causes progressive damage to the kidneys. It may eventually lead to high blood pressure or kidney failure.

Possible Complications

When to Contact a Medical Professional

Call your health care provider if you have decreased urine output, difficulty urinating, flank pain, or other symptoms of acute bilateral obstructive uropathy.

Prevention

You may not be able to prevent this condition. Routine annual physicals with a primary care doctor are recommended. If your doctor finds you have acute obstructive uropathy, you should be referred to the nearest emergency room and seen by a urologist.

References

Pais VM Jr, Strandhoy JW, Assimos DG. Pathophysiology of urinary tract obstruction. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 37.

Hsu THS, Streem SB, Nakada SY. Management of upper urinary tract obstruction. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 38.

McAninch JW, Santucci RA. Renal and ureteral trauma. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 39.

Frøkiaer J, Zeidel ML. Urinary tract obstruction. In: Brenner BM, ed. Brenner and Rector's The Kidney. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 35.


Review Date: 3/22/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Scott Miller, MD, Urologist in private practice in Atlanta, Georgia. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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