Simple additive may prevent Post-Bypass heart rhythm chaos

This study tests whether adding lidocaine to the Custodiol solution used during heart bypass surgery can reduce dangerous heart rhythms that often occur after the heart is restarted. About 70 adults having planned coronary bypass surgery will be randomly assigned to receive either standard Custodiol or Custodiol with lidocaine. The main goal is to see if the lidocaine group has fewer episodes of ventricular fibrillation after the surgery.