Considering the results of coronary reoperation in comparison to primary CABG, choose the incorrect statement:

D. Compared to primary CABG, return of anginal symptoms is delayed after reoperative CABG.

DISCUSSION: The mortality and morbidity after reoperative CABG are approximately two to three times that of primary CABG. In contrast to primary CABG, where the majority of deaths are a result of failure of other organ systems, 75% to 85% of deaths after reoperative CABG are due to cardiac causes. The increased risk of reoperation results from more advanced native vessel disease, a longer cross-clamp time, a longer cross-clamp time per graft, a longer time to initiate cardiopulmonary bypass, and increased blood loss. The increased frequency of pulmonary complications, myocardial infarction, neurologic injury, and death, stems from the technical factors of reoperation and the characteristics of the patient population. Technical factors include difficulty in finding targets secondary to pericardial reaction and more diffusely diseased vessels, the risks of injuring the heart or great vessels on sternal re-entry, increased blood loss and risk of requiring transfusion, less available conduit for bypass, and greater difficulty in providing optimal myocardial protection. Characteristics of this patient population  that increase risks include advanced age and diminished ventricular function. While survival after reoperation is nearly equivalent to that after primary CABG, angina symptoms return at twice the frequency in the first year after operation (47% versus 20%) then return at a similar annual rate (2% to 3%).