Objectives.Chronic total occlusion (CTO) is prevalent Trousers in patients with prior coronary artery bypass grafting (CABG).However, data available concerning the prevalence of new-onset CTO of native vessels in patients with prior CABG is limited.
Therefore, the objective of the study is to determine predictors for new native-vessel occlusion in patients with prior coronary bypass surgery.Methods.354 patients with prior CABG receiving follow-up angiography are selected and analyzed in the present study, with clinical and angiographic variables being analyzed by logistic regression to determine the predictors of new native-vessel occlusion.
Results.The overall new occlusion rate was 35.59%, with multiple CTOs (42.
06%) being the most prevalent (LAD 24.60% and RCA 18.25%, respectively).
Additionally, current smoking (OR: 2.67; 95% CI: 2.60 to 2.
74; p=0.01), reduced ejection fraction (OR: 1.76; Other Kidney / Urinary Support Products 95% CI: 1.
04 to 2.97; p=0.04), severe stenosis (OR: 3.
65; 95% CI: 2.55 to 5.24; p=0.
01), and diabetes mellitus (OR: 1.86; 95% CI: 1.34 to 2.
97; p=0.04) serve as the independent predictors for new native-vessel occlusion.Conclusion.
As to high incidence of postoperative CTO, appropriate revascularization strategies and postoperative management should be taken into careful consideration.