Injury of the kidney and ureter
Alternative names:
bruised kidney; fractured kidney; inflammatory injury of the kidney; kidney damage; kidney injury; toxic injury of the kidney; traumatic injury of the kidney
Treatment:
Treatment goals include treatment of emergency symptoms and prevention or treatment of complications. Most cases of external trauma result in mild bruises that heal spontaneously. Analgesics may be needed for pain relief. Hospitalization and close observation may be required because of the risk of internal loss of blood from a traumatically injured kidney.
Approximately 20% of cases of external damage require emergency surgery because of bleeding problems. Bleeding may be severe enough to require surgical removal of the entire kidney (nephrectomy) to control the bleeding. Surgical interventions to control bleeding may include drainage of the space around the kidney.
Surgical repair of a "fractured" or torn kidney, torn blood vessels, torn ureter, or similar injury may spare the kidney from removal. The kidney may return to normal function, or it may experience acute or chronic failure. If only one kidney is affected, there may be no symptoms from the failed kidney, because the second (healthy) kidney takes over functioning.
Surgical removal or repair of clots or other obstructions may correct injury caused by damage to blood vessels or the ureter.
Nonsurgical treatment of external damage to the kidney may include bedrest for 1 to 2 weeks or until bleeding is reduced, narcotics for pain relief, and close observation and treatment for symptoms of kidney failure.
Exposure to substances, including medications that are suspected of causing injury to the kidney should be stopped. This may require stopping or changing medications, or it may require a change in occupational or recreational habits. Many cases of toxic injury will reverse when exposure to the substance is stopped.
Some nephrotoxic substances have specific treatments to counteract them. For example, lead poisoning may be treated with chelation therapy, which involves the use of penicillamine, a medication that binds with the lead and allows it to be excreted from the body. Gout and other causes of uric acid accumulation may be treated with allopurinol or similar medications.
Injury caused by infection or inflammation should be treated as appropriate for the specific type of glomerulonephritis or acute tubular necrosis that develops. Treatment may include medications such as corticosteroids, immunosuppressants, and others.
Treatment may also include dietary restrictions and treatment of acute kidney failure.
Expectations (prognosis):
The outcome varies depending on the cause and extent of injury. The damage may be mild and reversible, or it may be immediately life threatening, or it may be prolonged and result in complications.
Complications:
Calling your health care provider:
Call your health care provider if symptoms indicate injury to the kidney or ureter, especially if there is a history of physical injury, exposure to potentially toxic substances, illness, or infection.
Go to the emergency room or call the local emergency number (such as 911) decreased urine output develops after kidney injury, this may be an emergency symptom indicating kidney failure.
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