there were no significant differences between the patients receiving nadolol ( n = 67 ) and those receiving placebo ( n = 74 ) with respect to age , preoperative heart rate , previous medications ( including beta blockers ) , incidence of previous myocardial infarction , frequency of preoperative ventricular and supraventricular arrhythmias , concomitant valvular heart disease , mean cardiopulmonary bypass time , mean aortic cross-clamp time , use of blood and crystalloid cardioplegia , mean number of bypass grafts placed , postoperative use of inotropic agents and catecholamines and incidence of perioperative myocardial infarction .
C0027302
nadolol
C0027051
myocardial infarction