title: Coronary artery bypass grafting with left internal mammary artery and right gastroepiploic artery, with and without bypass.
abstract: BACKGROUND
  Total arterial and off-pump revascularization are increasingly used in coronary artery bypass grafting. This study describes our experience with the exclusive use of both left internal thoracic artery and gastroepiploic artery by means of a median sternotomy, with and without cardiopulmonary bypass, in a subgroup of patients with two-vessel disease.
  
  
  METHODS
  From January 1995 to July 2000, 171 consecutive patients were reviewed in a prospective database. Ninety-one patients underwent coronary artery bypass grafting without cardiopulmonary bypass (group A), and 80 patients were operated on under cardiopulmonary bypass with aortic cross-clamp and cardioplegia (group B).
  
  
  RESULTS
  Patient data were similar in both groups except for the Euroscore (mean; 3.4+/-6.1, group A versus 2.5+/-4.5, group B; Euroscore > 6: 26.4%, group A versus 10%, group B; p < 0.05) and ejection fraction (mean, 54.6%+/-15.8%, group A versus 63.1%+/-12.7%, group B; p < 0.001). Severe aortic calcification was present in 6 group A patients, versus no patient in group B. Operative time was shorter in group A (185 versus 213 minutes, p < 0.0001), with less distal anastomoses (2.26 versus 2.5, p < 0.05). Conversion to cardiopulmonary bypass occurred in 1 patient, who was excluded from the study. Bleeding was higher in group A (852.6+/-288 mL versus 712.4+/-274 mL, p < 0.05), but transfusion was similar in both groups. Atrial fibrillation, postoperative inotropic support, and hospital stay were similar in both groups. Myocardial infarction was less frequent in group A (1 versus 4). Postoperative intraaortic balloon pump was used in 2 patients (group B). One patient died (group A) and 1 had an embolic stroke (group B). After discharge, 2 more patients died (group A, day 91; group B day 141), and 1 patient suffered an embolic stroke (group B). One patient in each group presented with dysfunction of the gastroepiploic artery graft requiring successful percutaneous transluminal angioplasty on the right posterolateral artery.
  
  
  CONCLUSIONS
  These results suggest that off-pump coronary artery bypass grafting using the left internal thoracic artery and gastroepiploic artery is safe even in high-risk patients. This approach allows an absolute no-touch technique of the aorta.
authors.affiliation: Department of Cardiac Surgery, Grenoble University Hospital, France. ochavanon@chu-grenoble.fr
authors.forename: Olivier
authors.initials: O
authors.lastname: Chavanon
authors.forename: Michel
authors.initials: M
authors.lastname: Durand
authors.forename: Rachid
authors.initials: R
authors.lastname: Hacini
authors.forename: Hélène
authors.initials: H
authors.lastname: Bouvaist
authors.forename: Marianne
authors.initials: M
authors.lastname: Noirclerc
authors.forename: Tarek
authors.initials: T
authors.lastname: Ayad
authors.forename: Dominique
authors.initials: D
authors.lastname: Blin
mesh_terms: D000368:Aged; D001158:Arteries / Q000637:transplantation*; D002315:Cardiopulmonary Bypass; D001026:Coronary Artery Bypass / Q000379:methods*; D003324:Coronary Artery Disease / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D009203:Myocardial Infarction / Q000209:etiology; D011183:Postoperative Complications / Q000209:etiology; D012307:Risk Factors; D013249:Sternum / Q000601:surgery; D020521:Stroke / Q000209:etiology; D016896:Treatment Outcome