Rhabdomyolysis
Rhabdomyolysis is a serious medical condition resulting from the breakdown of skeletal muscle fibers, which release substances into the bloodstream that can be harmful to the body. Common causes include traumatic injuries, extreme physical exertion, prolonged muscle compression, and certain medications such as corticosteroids and statins. People who use illegal drugs or consume excessive alcohol, as well as those with genetic disorders or infections, may also be at increased risk. Symptoms are varied and can include muscle pain, weakness, swelling, dark urine, and general feelings of illness, making early diagnosis challenging. If left untreated, rhabdomyolysis can lead to serious complications such as acute renal failure and heart issues due to elevated potassium levels. Prompt medical intervention, typically involving hydration and monitoring in a hospital setting, is crucial for recovery. With timely treatment, most individuals can fully recover, though some may require ongoing care for any lasting effects on kidney or nerve function. Understanding the risk factors and recognizing the symptoms can facilitate early detection and improve outcomes.
On this Page
Subject Terms
Rhabdomyolysis
Rhabdomyolysis is a dangerous condition that can occur when direct or indirect muscle trauma causes a breakdown in skeletal muscle fibers that then leak into the bloodstream. The condition can lead to high levels of potassium in the blood that can disrupt the heart’s normal rhythm and lead to cardiac arrest. The most common complication of rhabdomyolysis is acute renal failure in which the kidneys suddenly stop functioning, causing a life-threatening buildup of toxins in the blood. Rhabdomyolysis can affect anyone. Positive outcomes rely heavily on early identification, typically through a urine test, and prompt treatment involving intravenous hydration.
![: Army Capt. Orlando Ruiz (left), a nurse with the 47th Combat Support Hospital, explains the dangers of rhabdomyolysis, a breakdown of skeletal muscle tissue due to overuse, at a safety exposition aboard Al Asad Air Base, Iraq, June 15, 2009. By English: Cpl. Jo Jones [Public domain], via Wikimedia Commons 89550642-58382.jpg](https://imageserver.ebscohost.com/img/embimages/ers/sp/embedded/89550642-58382.jpg?ephost1=dGJyMNHX8kSepq84xNvgOLCmsE2epq5Srqa4SK6WxWXS)
Overview
Rhabdomyolysis has many potential causes. The most common ones include a crush injury from a fall or other traumatic accident, extreme muscle strain from overexertion, sustained muscle compression from lying too long on a hard surface, and the use of high-dose corticosteroids or statins used to treat other conditions. Users of illegal drugs such as cocaine and heavy drinkers of alcohol are also at increased risk for rhabdomyolysis. Some genetic conditions such as muscular dystrophy and viral or bacterial infections can lead to rhabdomyolysis as well. Anyone who has had rhabdomyolysis once has a higher risk of getting it again.
Symptoms of rhabdomyolysis are clinically nonspecific, meaning they could signal any number of conditions and do not easily point directly to rhabdomyolysis. In addition, the disease progression of rhabdomyolysis varies depending on its cause, and symptoms may affect any one or more areas of the body. Complications can occur at any stage of the syndrome.
Some of the more common symptoms of rhabdomyolysis are painful, swollen, bruised, or tender areas of the body; muscle weakness or difficulty moving one’s limbs; general feelings of infirmity; nausea or vomiting; confusion, dehydration, fever, or lack of consciousness; dark urine; and diminished or absent urine output.
Diagnostic tests can be performed to help to rule out other causes of presenting symptoms and confirm a diagnosis of rhabdomyolysis. Blood and urine tests can help determine the cause of rhabdomyolysis and identify any existing complications.
Early complications of rhabdomyolysis may include extremely elevated levels of potassium in the blood that puts the patient at risk for a heart attack and liver problems. The most common late-stage complication is kidney failure, which can sometimes, but not always, be reversed under the right conditions. Compartment syndrome, in which the muscles, nerves, and blood vessels compress to cause tissue damage and poor circulation, can also occur as a late complication of rhabdomyolysis and may result in permanent damage if not corrected immediately.
Early diagnosis and treatment of rhabdomyolysis are essential to successful outcomes. Most individuals with rhabdomyolysis recover completely with prompt treatment. The standard treatment protocol involves hospitalization to treat the underlying cause, administration of intravenous fluids to help prevent kidney failure, and clinical monitoring to evaluate and address disease status and complications. Post-hospitalization treatment may be required to manage lingering effects of kidney or nerve damage. For example, some patients may need to undergo regular dialysis treatment to help failing kidneys produce urine and filter waste.
Bibliography
Brent, Jeffery, Kevin Wallace, and Keith Burkhart. Critical Care Toxicology: Diagnosis and Management of the Critically Poisoned Patient. New York: Mosby, 2004. Print.
Cervellin, Gianfranco, Ivan Comelli, and Giuseppe Lippi. “Rhabdomyolysis: Historical Background, Clinical, Diagnostic and Therapeutic Features.” Clinical Chemistry and Laboratory Medicine 48.6 (2010): 749–56. Print.
Dart, Richard C. Medical Toxicology. 3rd ed. Philadelphia: Lippincott, 2004. Print.
Sauret, John M., George Marinides, and Gordon K. Wang. “Rhabdomyolysis.” American Family Physician 65.5 (2002): 907–13. Print.
Vanholder, Raymond, Mehmet Sükrü Sever, et al. “Rhabdomyolysis.” Journal of the American Society of Nephrology 11.8 (2000): 1553–61. Print.