RESULTS	Operative mortality ( nitroglycerin , 1.2 % versus diltiazem , 1.3 % ) , major morbidity ( 14 % versus 16 % ) , perioperative myocardial infarction ( 1.2 % versus 0 % ) , peak serum creatinine phosphokinase MB fraction levels ( 27 versus 21 U ) , intensive care unit stay ( 34 + / -19 versus 38 + / -30 hours ) and total hospital length of stay ( 4.7 + / -1.4 versus 4.7 + / -1.3 days ) were similar ( p = not significant for all ) .\