What is a complication unique to electrical burns and how is it managed?

• A. Cardiac conduction abnormalities/arrhythmias; monitor ECG and troponin, treat arrhythmias, and ensure adequate hydration to prevent renal injury from myoglobin
• B. Severe dehydration; treat with oral rehydration only
• C. Thermal burns; treat with topical antibiotics
• D. Hypoglycemia; treat with insulin

Answer: (A)

Electrical injuries uniquely threaten the heart’s electrical system, so the main concern is cardiac conduction abnormalities and arrhythmias that can occur immediately or evolve after the injury. The most effective management is continuous cardiac monitoring with serial ECGs and checking troponin to detect myocardial injury. If an arrhythmia or conduction disturbance appears, treat it promptly with appropriate ACLS interventions. At the same time, electrical burns often cause muscle damage (rhabdomyolysis), which releases myoglobin that can harm the kidneys, so aggressive IV hydration and close monitoring of urine output help prevent renal injury. In short, the combination of monitoring and treating potential rhythm problems along with safeguarding renal function from muscle breakdown captures the unique complications of electrical burns.