Abstract:

Objective To explore the effect of coronary artery bypass grafting in off⁃pump coronary artery bypass grafting（OPCABG）using non⁃touch acquisition technology（No⁃touch），endoscopic⁃assisted acquisition of the great saphenous vein（EVH），and traditional incision method to obtain the great saphenous vein（OVH）. Methods A total of 268 patients who were treated with the great saphenous vein as bypass graft material and elective OPCABG were selected from January 2017 to October 2019. They were divided into three groups based on the vein acquisition method，with 91 cases in the No⁃touch group，89 cases in the OVH group，and 88 cases in the EVH group. The postoperative incision，complications and follow⁃up were observed. Results The size of the EVH incision was significantly smaller than that of the No⁃touch group and the OVH group；during the perioperative， 6⁃month and 1⁃year follow⁃up of the EVH group，the incidence of leg incision complications was significantly lower than that of the No⁃touch group and the OVH group（P < 0.05）；the recent patency rate of the No⁃touch group was statistically significant compared with the EVH group and the OVH group（P < 0.05）；the operation time of the No⁃ touch group and the OVH group were statistically different in the time to obtain the great saphenous vein Scientific significance（P < 0.05）；morphological structure comparison，No⁃touch group and EVH group have more complete vascular endothelial cells than OVH group. Conclusion In the three types of great saphenous vein harvesting oper⁃ ations，EVH has obvious advantages over No⁃touch group and OVH group in terms of incision size，perioperative period and postoperative complications；No⁃touch group and EVH group have vascular endothelial cells preserva⁃tion under light microscope more complete and clinically. EVH is relatively safe and feasible.

Key words:

 , acquisition of great saphenous vein； coronary bypass grafting； non?touch acquisition tech? nology； endoscopic acquisition