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Rhabdomyolysis: Revisited
Ankur Gupta1, Peter Thorson1, Krishnam R Penmatsa1
1Department of Medicine, Whakatane Hospital PO BOX 241, Whakatane 3158, New Zealand.
The Ulster Medical Journal
|July 19, 2021
Summary
Rhabdomyolysis (RML) is a serious condition causing muscle breakdown, weakness, and potential kidney failure. Early recognition and treatment, including fluid resuscitation, are crucial for improving outcomes in at-risk patients.
Area of Science:
- Nephrology
- Critical Care Medicine
- Pathology
Background:
- Rhabdomyolysis (RML) presents with myalgia, weakness, and sometimes dark urine, potentially leading to respiratory failure and altered mental status.
- Myoglobinuria testing is diagnostic but often negative; serum creatine kinase is a key diagnostic marker for suspected RML.
- RML can cause acute tubular necrosis and kidney injury through various mechanisms.
Purpose of the Study:
- To highlight the clinical presentation and diagnostic challenges of Rhabdomyolysis.
- To emphasize the importance of early recognition and management of RML to prevent severe complications.
- To underscore the need for high index of suspicion in critically ill patients at risk.
Main Methods:
- Review of clinical characteristics and diagnostic markers for Rhabdomyolysis.
- Discussion of treatment strategies, including fluid expansion and avoidance of nephrotoxins.
- Analysis of Rhabdomyolysis-associated kidney injury and mortality rates.
Main Results:
- Serum creatine kinase is a more consistently available diagnostic marker than myoglobinuria.
- Early intervention (<6 hours) with volume expansion is recommended for non-overloaded patients.
- Mortality rates for RML with severe acute kidney injury (AKI) range from 10% to 50%.
Conclusions:
- A high index of suspicion and prompt screening are essential for critically ill patients susceptible to RML.
- Early management of Rhabdomyolysis can mitigate the risk of severe kidney injury and reduce mortality.
- While specific fluid recommendations are lacking, volume expansion and avoidance of nephrotoxins are key therapeutic components.
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