antegrade cardioplegia

Full Definition

Antegrade cardioplegia involves the delivery of cardioplegic solution directly into the coronary arteries through the aortic root or individual coronary ostia in the normal direction of blood flow. This technique ensures rapid and uniform distribution of cardioplegic solution to achieve cardiac arrest and myocardial protection during cardiac surgery. Antegrade delivery is the most physiologic method of cardioplegia administration and is particularly effective when coronary anatomy is normal. The technique requires competent aortic valve leaflets to prevent regurgitation of cardioplegic solution and may be supplemented with retrograde cardioplegia in cases of coronary artery disease or aortic insufficiency.

In Context

• "Antegrade cardioplegia was administered through the aortic root to achieve uniform myocardial protection." — Operative report
• "The surgeon opted for antegrade cardioplegia delivery given the patient's competent aortic valve." — Surgical procedure note