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Sleep apnea and recurrent heart failure hospitalizations after coronary artery bypass grafting

Yao Hao Teo1, Wilson W Tam2, Chieh-Yang Koo3

  • 1Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|July 3, 2021
PubMed

Insights

Sleep apnea significantly increases the risk of recurrent heart failure hospitalizations after coronary artery bypass grafting (CABG). Early detection and management of sleep apnea in CABG patients are crucial for improving outcomes.

Area of Science:

  • Cardiology
  • Sleep Medicine
  • Public Health

Background:

  • Sleep apnea is common in patients undergoing coronary artery bypass grafting (CABG).
  • Recurrent heart failure hospitalizations pose a significant burden after CABG.

Purpose of the Study:

  • To investigate the association between sleep apnea and recurrent heart failure hospitalizations in patients who underwent nonurgent CABG.

Main Methods:

  • A cohort of 1,007 patients undergoing CABG completed sleep studies and were followed for heart failure hospitalizations.
  • Statistical analyses included Poisson, negative binomial, Andersen-Gill, and joint frailty models.

Main Results:

  • Sleep apnea was independently associated with an increased risk of recurrent heart failure hospitalizations (fully adjusted rate ratio, 1.71).
  • Repeat hospitalizations constituted two-thirds of all heart failure events post-CABG.

Conclusions:

  • Sleep apnea is an independent predictor of recurrent heart failure hospitalizations following CABG.
  • These findings highlight the importance of considering sleep apnea in the management of post-CABG patients.
Abstract

Keywords:
coronary artery bypass graftingheart failuresleepstatistics

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