antegrade cardioplegia
Delivery of cardioplegic solution through the coronary arteries in the normal direction of blood flow.
Full Definition
A method of myocardial protection during cardiac surgery where cardioplegic solution is delivered through the aortic root or directly into coronary ostia, following the natural direction of coronary blood flow. This technique provides excellent distribution to normally perfused myocardium and is the primary method used in most cardiac procedures. Antegrade delivery requires competent aortic valve function and unobstructed coronary arteries for optimal distribution. The technique is often combined with retrograde cardioplegia for complete myocardial protection, particularly in cases with significant coronary artery disease where antegrade flow alone may be inadequate.
Usage
Usage note: Often used in combination with retrograde cardioplegia for optimal myocardial protection.
In Context
- "Antegrade cardioplegia was delivered through the aortic root with good coronary perfusion observed." — Operative report
- "The surgeon switched to retrograde delivery after poor antegrade cardioplegia distribution was noted." — Intraoperative note