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Videothoracoscopic Internal Mammary Artery Harvest for Coronary Bypass

Kaan Kirali, MD, Mustafa Güler, MD, Bahadir Dalar, MD, Gökhan Ipek, MD, Mehmet Balkanay, MD, Esat Akinci, MD, Turan Berki, MD, Ali Gürbüz, MD, Ömer Iik, MD, Cevat Yakut, MD

Department of Cardiovascular Surgery Kouyolu Heart and Research Hospital Istanbul, Turkey

For reprint information contact: Kaan Kirali, MD Tel: 90 216 326 6969 Fax: 90 216 339 0441 email: kosuyolu{at}superonline.com Kouyolu Heart and Research Hospital, Kadiköy, Istanbul 81020, Turkey.

Between March 1996 and September 1997, videothoracoscopy was performed in 50 of 140 patients who underwent minimally invasive coronary artery bypass grafting. Mean age was 45.3 ± 6.8 years. The left internal mammary artery was harvested by thoracoscopy alone in 21 patients and by both thoracoscopy and direct vision in 29. Coronary artery bypass was then performed through a left anterior minithoracotomy. In 48 patients, the internal mammary artery was grafted directly to the left anterior descending artery; a small saphenous vein graft was interposed in the other 2 patients. The diagonal branch was bypassed with saphenous vein in 2 patients, the first obtuse marginal in 1, the right posterior descending branch in 1, and the right ventricular branch of the right coronary artery in 1. Concomitant carotid endarterectomy was performed in 1 patient. There was no mortality. Two patients had perioperative myocardial infarction. It was concluded that videothoracoscopy can help to achieve complete mobilization of the left internal mammary artery for minimally invasive coronary artery bypass grafting. These techniques can be regarded as safe and effective, giving excellent results and a shortened hospital stay with the advantage of avoiding some morbidity due to costal cartilage resection.