Perioperative study of blood flow of in-situ BIMA in coronary artery bypass grafting
10.3760/cma.j.cn112434-20190723-00246
- VernacularTitle:原位双乳内动脉冠状动脉旁路移植术围手术期移植血管血流变化
- Author:
Zhou ZHAO
1
;
Lixue ZHANG
;
Guodong ZHANG
;
Xiangui ZHANG
;
Xuan WANG
;
Junxue GAO
;
Guangpu FAN
;
Bo LIAN
;
Jing LIU
;
Gang LIU
;
Shenglong CHEN
;
Yu CHEN
Author Information
1. 北京大学人民医院心脏中心心脏外科 100044
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2020;36(3):175-179
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observate the changing trend of flow of in-situ bilateral internal mammary artery as grafts during perioperative period in patients undergoing coronary artery bypass grafting(CABG), and to compare the parameters of flow between LIMA and RIMA.Methods:A total of 57 patients , 50 males and 7 femails, mean aged(57.8±10.1) years, underwent bilateral IMA CABG in our hospital from August 2016 to January 2019. Transthoracic ultrasound of IMA examination was performed before CABG. The blood flow, the PI(pulsation index) and other parameters were measured and recorded by intraoperative TTFM.Results:There was no significant difference of the average diameter and PI between LIMA and RIMA, but the preoperative flow of RIMA is higher( P=0.026) in our study. There was no significant difference of the average flow and PI between LIMA and RIMA recorded by TTFM( P>0.05), but the higher diastolic flow(DF) in LIMA grafts( P=0.022) compared with RIMA grafts may be associated with the different target sites( P<0.05). Compared with the preoperative flow and PI of IMA, the intraoperative flow and PI of both LIMA and RIMA grafts were better( P<0.001). Conclusion:Compared with the preoperative flow of IMA, both flow of LIMA and RIMA are better. In spite of the targets exist difference , there are no significant difference of the average flow and PI between LIMA graft and RIMA graft recorded by TTFM.
