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Ann Thorac Surg 2000;70:1063-1065
© 2000 The Society of Thoracic Surgeons

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Supplement: cardiothoracic techniques & technologies

Minimally invasive direct coronary artery bypass grafting: intermediate-term results

^a Pensacola Heart Institute of Sacred Heart Hospital, Pensacola, Florida, USA

Address reprint requests to Dr Vassiliades, Cardiothoracic Surgical Associates of NW Florida, 5147 North Ninth Ave, Suite 401, Pensacola, FL 32504
e-mail: vassiliades{at}pol.net

Presented at the Sixth Annual Cardiothoracic Techniques and Technologies Meeting 2000, Ft Lauderdale, FL, Jan 27–29, 2000.

Background. Intermediate- and long-term clinical outcome and graft patency in minimally invasive direct coronary artery bypass grafting (MIDCABG) procedures remain a concern.

Methods. Over a 13-month period, 66 MIDCABG procedures were performed utilizing robotic-assisted internal mammary artery (IMA) harvesting and direct CABG through a 5-cm thoracotomy without cardiopulmonary bypass. Clinical follow-up was obtained on all patients. Graft patency was assessed in 61 of 66 consecutive patients 6 months (range 2 to 15 months) postoperatively. Group I consisted of 45 patients who underwent IMA angiography and group II consisted of 16 patients who underwent both a nuclear stress test and transthoracic Doppler examination. All group II patients had abnormal preoperative nuclear stress tests for comparison.

Results. To date, all 66 patients are alive. Graft patency rates in the two groups were 97.8% (45 of 46 grafts in 45 patients) in group I and 100% (15 of 15 grafts), with one indeterminate study, in group II. The overall patency rate for the entire study group was 98.3% (60 of 61 grafts). Sixty-two of 66 (93.9%) patients were able to return to their normal level of activity within 3 weeks.

Conclusions. This study demonstrates that the MIDCABG with thoracoscopic IMA harvesting can achieve effective intermediate-term revascularization and an acceptable clinical outcome.

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