Causes of Elevated Aldolase Beyond Muscle Damage

Clinical Significance and Diagnostic Considerations

• Multiple blood transfusions can lead to increased aldolase levels in patients 1
• Testing for blood levels of creatine phosphokinase (CK), aldolase, or other muscle-related enzymes can help confirm the non-hepatic origin of liver enzyme elevations 2, 3
• In patients with nonalcoholic steatohepatitis (NASH), intensive exercising can lead to acute elevation in AST and ALT due to muscle injury, which can be confirmed by testing aldolase levels 2, 4

Clinical Pitfalls and Considerations

• When evaluating liver function test abnormalities, consider testing aldolase to differentiate between hepatic and non-hepatic causes of enzyme elevations 5, 2
• In glycogen storage diseases, elevated aldolase may be present alongside other enzyme abnormalities and should be considered in the differential diagnosis 6

Monitoring and Management Implications

• In clinical trials, especially for NASH patients, aldolase testing can help differentiate between drug-induced liver injury and muscle-related causes of enzyme elevations 2, 4