cardioplegia arrest
Temporary cessation of heart activity induced by cardioplegic solution during cardiac surgery.
Full Definition
Cardioplegia arrest refers to the deliberate stopping of the heart's electrical and mechanical activity using a specialized solution containing potassium and other compounds. This technique is essential during cardiac surgery to create a motionless, bloodless operative field while protecting the myocardium from ischemic injury. The arrest is reversible once normal perfusion is restored and the cardioplegic solution is washed out.
Usage
Usage note: Distinguish from pathological cardiac arrest; this is a controlled, therapeutic intervention.
In Context
- "The surgeon achieved excellent cardioplegia arrest within two minutes of solution delivery." — Operative report
- "Inadequate cardioplegia arrest was noted, requiring additional dose administration." — Surgical complication note