Evaluation of the Enclose® II Anastomosis Device during Off-Pump Coronary Artery Surgery

(Department of Cardiothoracic Surgery, Ome Municipal General Hospital, Ome, Japan and Department of Cardiothoracic Surgery, Tokyo Medical and Dental University*, Tokyo, Japan)

Kiyoshi Tamura* Nagahisa Oshima Toshizumi Shirai
Dai Tasaki
The aim of this study was to evaluate the Enclose II anastomosis device (Novare Surgical System, Inc., Cupertino, CA). A retrospective record review was conducted of all cases which underwent off-pump coronary artery bypass surgery (OPCAB) at our general hospital between January 2002 and December 2006. We identified 91 patients (a mean age of 71.0 years, the average number of distal anastomoses 2.5/patient) underwent OPCAB. The proximal anastomoses were constructed with the Enclose II (group E, 40 patients), aorta side-clamp technique (group S, 17 patients), and aorta no touch (group N, 34 patients). Group E had more grafts than group N (E:N2.7:1.7/patient, pƒ0.0001), while Group E (3.1/patient) had more distal anastomoses than group S (2.6/patient, p0.0486) and N (1.8/patient, pƒ0.0001). There was no difference of graft patency in each group (early; E:S:N99.1%:97.8%:98.0%, 1-year; E:S:N95.8%:91.3%:95.2%). There was no patient with sustained permanent neurologic deficits after OPCAB. The Novare Enclose ‡U proximal anastomotic device appears to be a safe and effective tool during OPCAB.
@Jpn. J. Cardiovasc. Surg. 37: 74-77 (2008)