Ultrastructure of the Human Myocardium after Intermittent Ischemia Compared to Cardioplegia
Despite of many reports about the detrimental effects of intermittend ischemia induced by ventricular fibrillation as a method of myocardial protection this method is still used during coronary surgery (1, 2, 3, 4, 5, 6). The proponents of this method argue that the duration of ischemia is shorter than during cardioplegic arrest (7) and that this method is as safe as cardioplegic arrest (8, 9). In our study we compared myocardial protection due to cardioplegic arrest and intermittend ischemia during coronary surgery. The quality of myocardial protection was estimated by electronmicroscopic studies of myocardial biopsies taken from patients during coronary surgery.
KeywordsVentricular Fibrillation Myocardial Protection Myocardial Biopsy Cardioplegic Arrest Coronary Surgery
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