Teo YH, Tam WW, Koo CY, et al. - Among patients receiving non-urgent coronary artery bypass grafting (CABG), it was investigated if and how sleep apnea is related to recurrent heart failure hospitalizations in this population. A sleep study before CABG was completed by 1007 patients and they were followed up until April 2020. For assessing recurrent heart failure hospitalizations, experts employed Poisson, negative binomial, Andersen–Gill, and joint frailty models, with partial and complete adjustment for covariates. There were 908 (90.2%), 62 (6.2%), and 37 (3.7%) patients with 0, 1, or ≥2 heart failure hospitalizations, respectively, at an average follow-up of 3.3 years. The overall heart failure hospitalizations were 179, comprising 62 (35%) first and 117 (65%) repeat events. It was found that two-thirds of heart failure hospitalizations were due to repeat events among patients post-CABG. Findings demonstrated an independent connection of sleep apnea with recurrent heart failure hospitalizations.