Professional
Technical
IVT
retrograde cardioplegia
Method of delivering cardioplegic solution through the coronary sinus, flowing backward through coronary veins.
Full Definition
Retrograde cardioplegia involves delivering cardioplegic solution through a catheter placed in the coronary sinus, allowing the solution to flow retrograde through the coronary venous system and into the myocardium. This technique ensures distribution to areas that may be poorly perfused via antegrade delivery, particularly in the presence of severe coronary artery disease. It provides more uniform myocardial protection and is especially valuable when coronary ostia are not accessible.
Usage
Usage note: Contrast with antegrade delivery; often used in combination for optimal protection.
In Context
- "Retrograde cardioplegia was administered via coronary sinus catheter every 20 minutes." — Operative report
- "Combined antegrade and retrograde cardioplegia provided optimal myocardial protection." — Surgical technique description
Also known as
coronary sinus cardioplegia
venous cardioplegia
Contrasted with
antegrade cardioplegia
direct coronary perfusion
Don't confuse with
antegrade cardioplegia
coronary perfusion