epicardial pacing
Temporary cardiac pacing using electrodes placed directly on the heart's surface during cardiac surgery.
Full Definition
Epicardial pacing involves the placement of temporary pacing electrodes directly on the epicardial surface of the heart during cardiac surgery to provide postoperative rhythm support and hemodynamic optimization. These pacing wires are typically placed on the right atrium and right ventricle before chest closure and can be used to treat bradyarrhythmias, optimize atrioventricular timing, or provide backup pacing in case of conduction disturbances. Epicardial pacing wires are usually removed before hospital discharge by gentle traction, though they may occasionally break off and be retained without consequence. This technique provides more reliable capture than temporary transvenous pacing in the immediate postoperative period.
Usage
Usage note: Specify electrode locations (atrial vs. ventricular) and distinguish from permanent pacemaker implantation.
In Context
- "Epicardial pacing wires were placed on the right atrium and ventricle before chest closure." — Operative report
- "The patient required epicardial pacing for junctional rhythm on postoperative day 1." — ICU progress note