Title:Graft Patency Assessment with CCTA Using a Comprehensive Singlebranch
Bridging Score
Volume: 19
Author(s): Zengfa Huang, Yang Yang, Xinyu Du, Xi Wang, Zuoqin Li, Yun Hu, Xiang Li, Jianwei Xiao*Xiang Wang*
Affiliation:
- Department of Radiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science
and Technology, Wuhan, Hubei, 430014, China
- Department of Radiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science
and Technology, Wuhan, Hubei, 430014, China
Keywords:
Coronary artery disease, coronary computed tomography angiography, coronary artery bypass grafting, graft failure, comprehensive single-branch targeted atherosclerotic risk score.
Abstract:
Aims: This study aims to assess the prognostic value of graft patency with coronary computed
tomography angiography (CCTA) using a comprehensive single-branch targeted atherosclerotic
risk score (CSBS) in patients before coronary artery bypass grafting (CABG).
Methods: This retrospective study contains a total of 88 patients who underwent clinical CCTA before
off-pump CABG surgery between 2015 and 2018. Graft failure was defined as patients with missing
multi-slice CCTA or coronary angiography. The predictive value of CSBS (ranging from 0-70 and
divided into 2 groups: < 20 and ≥20) was analyzed using Kaplan–Meier analysis and Cox regression
models.
Results: Patients' mean age was 61.2 ± 10.5 years, with a mean follow-up of 20.4 ± 15.2 months. A
total of 203 grafts (21.5% arterial grafts) were analyzed and 30 of the vessels were occluded (14.8%).
There was no significant difference in graft occlusion among the three targeted vessel groups. The Cox
proportional hazard analysis showed that CSBS < 20 was a significant predictor of graft failure.
Conclusion: Lower comprehensive single-branch targeted atherosclerotic risk score evaluated by
CCTA is an independent prognostic factor for graft failure in patients before CABG surgery.