several parameters ( creatine kinase mb , electron microscopy of myocardium , perioperative myocardial infarction rate , frequency of postoperative arrhythmias ) were monitored and compared with those of a control group which consisted of the previous 200 consecutive patients in whom the same cardioplegic solution was used , but without papaverine .
C0003811
arrhythmias
C0030350
papaverine