Table 1. Pre- and Postoperative Laboratory and Echocardiographic Data

Cardiac-specific troponin T was measured by enzyme immunoassay (normal range < 0.25 ng/ml). Myosin light chain isotype 1 was measured by radio immunoassay (normal range <2.5 ng/ml). WBC = white blood cell count; AST = aspartate aminotransferase; LDH = lactic dehydrogenase; POD = postoperative day; CPK = creatine phosphokinase.