Abstract: Objective   To evaluate the application effect of no-touch saphenous vein grafting（NT-SVG） versus conventional saphenous vein grafting（CV-SVG） in coronary artery bypass grafting（CABG）.  Method   From January 2018 to December 2020,the clinical data of NT-SVG group（112 cases） and CV-SVG group(126 cases)  were retrospectively analyzed,and post-complications and patency of SVG were evaluated.  Result   Venous graft occlusion was 2.5% in the NT-SVG group and 6.5% in the CV-SVG group at 3 months postoperatively(P<0.05),and 4.2% versus 9.0% at 12 months,respectively(P<0.05).There were no significant differences in the incidence of mortality(0.9% vs 0.8%),hemostasis rate of secondary thoracotomy(0.9% vs1.6%),myocardial infarction(0 vs0.8%),brain complications(0.9% vs 0),pulmonary infection(6.25% vs 6.3%),renal failure requiring dialysis(1.8% vs 2.4%),and gastrointestinal bleeding(0.9% vs 1.6%) between the two groups within 30 days after surgery(P>0.05).The incidence of delayed wound healing in the NT-SVG group was 7.1%,and paresthesia in the legs was 18.8%,which were higher than those in the CV-SVG group(1.6% and 9.5%,respectively,P<0.05).  Conclusion   Compared with the CV-SVG group,the patency rate of SVG was significantly improved in the NT-SVG group at 3 months and 12 months after the operation,and there was no significant increase in major postoperative complications.

Key words: coronary artery bypass grafting, no-touch harvesting technique, great saphenous vein