Elevated liver enzymes following polytraumatic injury

Area of Science:

• Neurology
• Hepatology
• Rehabilitation Medicine

Background:

• Traumatic brain injury (TBI) can impact multiple organ systems.
• Elevated liver enzymes are a potential complication following TBI.
• Understanding the prevalence and risk factors is crucial for patient management.

Purpose of the Study:

• To determine the prevalence of elevated liver enzymes in patients with TBI.
• To identify potential risk factors associated with elevated liver enzymes post-TBI.
• To inform monitoring strategies and minimize healthcare costs.

Main Methods:

• Retrospective cohort study of 121 servicemembers with TBI.
• Analysis of liver enzyme panels (ALT) within 30 days of injury.
• Comparison of patients with elevated ALT (≥44 IU/L) versus normal ALT (≤43 IU/L) using chi-square analysis.

Main Results:

• 49% of TBI patients had elevated ALT levels.
• No significant differences in elevated ALT based on sex, military status, race, theater, TBI mechanism, severity, or concomitant injuries.
• Most elevated liver enzymes normalized with conservative management, often without a defined etiology.

Conclusions:

• Elevated liver enzymes are a common finding in TBI patients admitted to rehabilitation.
• Current demographic and injury-specific factors do not predict elevated liver enzymes.
• Further research is needed to optimize monitoring protocols and reduce unnecessary testing and costs.