Evaluation of left ventricular function after coronary artery bypass graft surgery in patients with type 2 diabetes

Abstract

Objectives: Study factors affecting the change of left ventricular function after CABG in patients with type 2 diabetes at Ha Noi heart hospital from 8/2021 to 8 /2022. Subjects and methods: a cross-sectionnal observational study in 46 patients with type 2 diabetes and coronary artery bypass graft surgery from 8/2021 to 8/2022 at Hanoi Heart Hospital. Results: Mean age 66±8.73; the male/female ratio is 2.83/1; 43.5% of patients smoked; 65.2% had dyslipidemia; non STEMI accounted for 41%. 100% of patients had anterior interventricular artery damage and elective surgery accounted for 80.4% of patients. Echocardiographic results: The rate of regional movement disorders before and 6 months after surgery is 56.5% and 30%; the number of disturbance areas before and after surgery were 3.52±5.39 and 1.84±4.18, EF 6 months before and after surgery was 55,33 ± 11,49% and 59,13,98 ± 10,05%, respectively. 39%. The percentage of patients with EF improved after 6 months of surgery accounted for 52%, patients with unchanged EF accounted for 28%, 20% of patients with EF decreased after 6 months of surgery, on univariate analysis: Preoperative ejection fraction, regional movement disorder and preoperative left ventricular diastolic dysfunction are factors associated with the change of left ventricular function after surgery. On multivariate analysis: Preoperative ejection fraction was an independent predictor of improvement in postoperative ejection fraction. Conclusion: Preoperative ejection fraction, regional movement disorder and preoperative left ventricular diastolic dysfunction are factors related to the change of left ventricular function after surgery, among which preoperative ejection fraction was an independent predictor of postoperative improvement in ejection fraction.