cardioplegic arrest
Intentional cessation of cardiac activity using cardioplegic solution to create a motionless surgical field.
Full Definition
Cardioplegic arrest is the controlled cessation of cardiac electrical and mechanical activity achieved through the administration of cardioplegic solution during cardiac surgery. This technique provides a still, bloodless operative field essential for precise surgical repair while protecting the myocardium from ischemic injury. The cardioplegic solution typically contains high concentrations of potassium along with other protective agents, and may be delivered at cold or warm temperatures through antegrade or retrograde routes. Proper cardioplegic arrest and myocardial protection are crucial for optimal surgical outcomes and post-bypass cardiac function.
Usage
Usage note: Distinguish from pathological cardiac arrest. Always specify as 'cardioplegic arrest' in surgical contexts.
In Context
- "Cardioplegic arrest was achieved with cold blood cardioplegia delivered antegradely." — Operative report
- "The duration of cardioplegic arrest was minimized to preserve myocardial function." — Surgical technique description