Significance of preoperative left ventricular ejection fraction in 5-year outcome after isolated CABG.

ABSTRACT:

Background

Pre-operative ejection fraction (EF) and comorbidities affect post-op outcomes. We aimed to compare the mortality and adverse events of patients with different baseline EF and also to evaluate the distribution of comorbidities in each EF group.

Methods

A total of 20,937 patients who underwent isolated coronary artery bypass graft (CABG) surgery from January 2006 to December 2016 was included. Patients were divided into three groups based on their pre-operative left ventricular EF as follows; (1) Normal: EF ≥ 50%; (2) Mild to moderately reduced: 50% < EF ≤ 35%; and (3) Severely reduced: EF < 35%. The backward elimination method was considered for multivariate Cox-regression analysis to locate predictors of mortality and non-fatal cerebro-cardiovascular events (CCVE

SUBMITTER: Fallahzadeh A 

PROVIDER: S-EPMC8711149 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature