Awake subxyphoid minimally invasive direct coronary artery bypass yielded minimum invasive cardiac surgery for high risk patients

¹ Kanazawa University School of Medical Science, Japan

^* To whom correspondence should be addressed. E-mail: gucci-s{at}ya2.so-net.ne.jp.

	Abstract

Off-pump coronary artery bypass graft (CABG) surgery has become a widely used modality and has received recognized as a minimally invasive surgery with few complications. However, for patients with severely impaired pulmonary function, further considerations have to be given to reduce the complications associated with general anesthesia. We have accumulated experience in awake off-pump surgery combined with high thoracic epidural anesthesia. In this report we describe the use of alternative subxiphoid approach in patients with severe pulmonary dysfunction. A catheter for high thoracic epidural anesthesia was inserted one day before surgery. After obtaining an adequate level of anesthesia, a small subxiphoid incision was made and the pericardium was opened to expose the left anterior descending branch. The conduit for bypass, gastroepiploic artery was accessed through a minilaparotomy, and separated under the same surgical field and anatomozed under beating heart. This procedure was performed in three patients. Patency was confirmed by postoperative angiography in all three cases. All patients were discharged after an uneventful postoperative course. Awake subxiphoid approach has the advantages that both thoracotomy and sternotomy can be avoided thus permitting surgery with extremely low invasiveness. This method is recommended for patients with severe pulmonary dysfunction. Keywords: Cardiac surgery; Coronary artery; Minimally invasive surgery; Off pump bypass