The expansion of no‐touch harvesting sequential vein graft after off‐pump coronary artery bypass grafting

Background and Aim of the Study Many studies support that the no‐touch (NT) procedure can improve the patency rate of vein grafts. However, it is not clear that the sequential vein graft early expansion in the NT technique during off‐pump coronary artery bypass grafting (CABG). This study will explore this issue. Methods This was a prospective single‐center randomized controlled clinical trial. A total of 100 patients undergoing off‐pump CABG with the sequential saphenous graft were randomly assigned to two groups: the NT and conventional (CON) groups. Perioperative and postoperative data were collected during the hospital stay. The mean diameter of sequential grafts was measured using cardiac computed tomography angiography 3 months after the operation. Results There was a significant difference in the average diameter of sequential grafts between the two groups (NT: [2.98 ± 0.42], CON: [3.26 ± 0.51], p = .005). There was no difference in occlusion of sequential venous grafts between the two groups (NT: 4/48 [8.3%], CON: 5/49 [10.2%], p = 1.000). There were differences in surgery time between the two groups (NT: 220 [188,240], CON: 190 [175,230], p = .009). Conclusions The sequential graft early expansion in the NT technique is not as pronounced as that in the conventional technique, which may have a long‐term protective effect on the grafts.