Robot-Assisted Minimally Invasive Direct Coronary Artery Bypass Grafting

Abstract

Background:The aim of this study was to assess the outcome of robot-assisted minimally invasive direct coronary artery bypass grafting (MIDCAB), which is also termed "ThoraCAB". Methods and Results:From 2005 to 2013, 35 consecutive patients underwent MIDCAB via a small thoracotomy on a beating heart. Before performing MIDCAB, the internal thoracic arteries (ITAs) were endoscopically harvested through 3 ports using the da Vinci Surgical System in a completely skeletonized fashion. Distal anastomosis was hand-sewn using a vacuum stabilizer, and a coronary artery active perfusion system was used to prevent myocardial ischemia during anastomosis. Successful robot-assisted ITA harvesting was achieved in all patients. There was an average of 1.7±0.8 grafts (range, 1-3 grafts) per patient. No patient needed mechanical ventilation for more than 24 h. There were no deaths, strokes or myocardial infarctions, and none of the patients required conversion to median sternotomy.Conclusions: Robot-assisted ITA harvesting is safe and feasible. ThoraCAB is a relatively simple procedure and allows multivessel bypass grafting after a small thoracotomy. Therefore, it is expected that ThoraCAB will become the standard procedure for minimally invasive coronary revascularization and will be used in totally endoscopic CABG in the future. (Circ J 2014; 78: 399 -402)

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