Minimal access heart surgery via lower ministernotomy: experience in 460 cases

Minimally invasive cardiac surgery has captured the interest and attention of cardiac surgeons throughout the world. We reviewed our experience of minimal access cardiac operations performed through a lower median ministernotomy. Between January 1997 and August 2003, 100 congenital, 178 valvular, 168 coronary, 12 aneurysmal, and 2 other operations were performed via a 6 to 9 cm lower ministernotomy in 460 consecutive patients. No special instruments were required. Four patients died, and 2 re-operations were necessary. Complications occurred in 28 patients (6.1%). The mean cardiopulmonary bypass time was 88.50 +/- 65.16 min, crossclamp time was 55.81 +/- 31.89 min, time to extubation was 14.71 +/- 29.33 h, and total chest drainage was 7.28 +/- 5.07 mL.kg(-1). Blood transfusions of 951.42 +/- 642.34 mL were needed in 282 patients. Postoperative hospital stay was 11.6 +/- 6.0 days. Our experience shows that many types of cardiac operations can be performed through a lower ministernotomy. This technique results in less trauma, quick recovery, and reduces the risk of infection and blood loss. It is a safe and easy procedure that can bring about favorable early outcomes in a wide range of cardiac operations.