Correlation between radial artery graft patency and the degree of native coronary stenosis in coronary artery bypass grafting
10.3760/cma.j.issn.1673-4904.2017.07.017
- VernacularTitle:冠状动脉旁路移植术中靶血管狭窄程度对桡动脉桥通畅率的临床研究
- Author:
Jindong LI
;
Yanhong WU
;
Mingfeng DONG
;
Jiantang WANG
;
Shoudong CHAI
;
Peizhe TANG
- Keywords:
Coronary artery bypass;
off-pump;
Radial artery;
Retrospective studies
- From:
Chinese Journal of Postgraduates of Medicine
2017;40(7):638-641
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the correlation between radial artery graft patency and the degree of native coronary stenosis in coronary artery bypass grafting. Methods The clinical data of 290 patients who had underwent off-pump coronary artery bypass grafting were retrospectively analyzed. The left internal mammary artery, radial artery and saphenous veins were as grafts. The patients were divided into 3 groups according to the stenosis of right coronary artery before operation:group Ⅰ(right coronary artery stenosis 50%-75%, 85 cases), groupⅡ(right coronary artery stenosis 76%-89%, 95 cases) and group Ⅲ (right coronary artery stenosis 90%-100%, 110 cases). The patients were followed up for 2 to 5 years, and the graft patency was assessed using CT coronary angiography. Results There was no death and serious complications in 3 groups. Among the 3 groups, the total graft patency rate of left internal mammary artery grafts was 93.3% (270/290), the total graft patency rate of saphenous veins grafts was 70.2%(433/617), and the total graft patency rate of radial artery grafts was 69.7%(202/290). There was no statistical difference in the graft patency rate of radial artery grafts between group Ⅱ and group Ⅰ(P>0.05). The graft patency rate of radial artery grafts in group Ⅲwas significantly higher than that in groupⅡand group Ⅰ:85.5%(94/110) vs. 68.4%(65/95) and 50.6%(43/85), and there was statistical difference (P<0.05). The graft patency rate of radial artery grafts was significantly higher than the graft patency rate of saphenous veins grafts in group Ⅲ :85.5%(94/110) vs. 71.5%(168/235), and there was statistical difference (P<0.05). There were no statistical differences in the graft patency rates of left internal mammary artery grafts and saphenous veins grafts among 3 group (P>0.05). Conclusions The correlation between radial artery graft patency and the degree of native coronary stenosis is significant in coronary artery bypass grafting. Patients with severe proximal right coronary artery stenosis (≥90%) may have better patency rates at mid-term follow up after using radial artery grafts.
