The surgeries were performed with the usual methods of cardiopulmonary bypass (CPB) with a single aortic cross-clamp technique. Myocardial protection strategies included antegrade and retrograde blood cardioplegia, and moderate hypothermia. Mean CPB time was 166,69 minutes (SD: 42.57) and aortic cross-clamp time was 126.19 minutes (SD: 33.28). The operative data are listed in Table 3.
TABLE 3 Operative data