antegrade cardioplegia
Delivery of cardioplegic solution through the coronary arteries in the direction of normal blood flow.
Full Definition
Antegrade cardioplegia involves the delivery of cardioplegic solution directly into the coronary arteries through the aortic root or individual coronary ostia, following the normal direction of coronary blood flow. This technique provides rapid and uniform distribution of the protective solution to the myocardium, achieving cardiac arrest and providing metabolic support during ischemic periods. Antegrade delivery is often combined with retrograde techniques for optimal myocardial protection, particularly in patients with coronary artery disease where antegrade flow may be compromised.
Usage
Usage note: Distinguish clearly from retrograde cardioplegia, which flows in the opposite direction.
In Context
- "Antegrade cardioplegia was delivered through the aortic root cannula every 20 minutes." — Perfusion protocol
- "Combined antegrade and retrograde cardioplegia ensured complete myocardial protection." — Operative technique