A Comparison of the Efficacy of Antegrade Cardioplegia Versus Retrograde Right Atrial Cardioplegia for Myocardial Protection During Open Heart Surgery

개심술시 심근보호를 위한 순행성 관관류법과 역행성 관관류법의 비교를 한 실험적 연구

This study was undertaken to evaluate the efficacies for myocardial protective effect of retrograde right atrial perfusion [RRAP] of cardioplegia compared with antegrade aortic root perfusion [AARP]. Myocardial distribution of perfusate [using methylene blue] with RRAP was less poor to AARP. Myocardial protective effect was estimated with myocardial temperature and electron microscopy. Cooling protection of right ventricle with RRAP was similar to AARP. On the other hand, cooling protection of left ventricle with RRAP was slight poor to AARP. The electron microscopic ischemic change of right and left ventricle with RRAP was similar to AARP. RRAP was thought to be a good alternative method to perfuse cardioplegia and protect both ventricle.