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. 2022 Dec;26(4):1897-1905.
doi: 10.1007/s11325-022-02649-4. Epub 2022 Jun 1.

Effects of obstructive sleep apnea hypopnea syndrome on postoperative complications in patients who undergo off-pump coronary artery bypass grafting

Mingxin Gao  1 , Pengcheng Wang  1 , Tian Tang  1 , Wenyuan Yu  1 , Yang Yu  2 , Yongxiang Wei  3
Affiliations

Effects of obstructive sleep apnea hypopnea syndrome on postoperative complications in patients who undergo off-pump coronary artery bypass grafting

Mingxin Gao et al. Sleep Breath. 2022 Dec.

Abstract

Purpose: To investigate the prevalence of obstructive sleep apnea hypopnea syndrome (OSAHS) in patients undergoing off-pump coronary artery bypass grafting (OPCABG) and analyze the effects of OSAHS on the incidence of post-OPCABG complications, length of stay in intensive care unit (ICU) and hospitalization, and hospital expense.

Materials and methods: This prospective study included patients undergoing OPCABG at Beijing An Zhen hospital from January 2018 to December 2018. OSAHS was diagnosed by using a portable sleep monitor before surgery.

Results: Among 74 patients, the prevalence of OSAHS and moderate to severe OSAHS (apnea hypopnea index (AHI) ≥ 15) was 70% and 53%, respectively. Compared with the no to mild OSAHS group (AHI < 15), the moderate to severe OSAHS group presented a lower ejection fraction (P = 0.013). Between these two groups, the incidence of post-OPCABG complications; the duration of intubation, ICU stay, and hospitalization; and the hospital expense did not differ. Notably, the ejection fraction was significantly negatively correlated with the duration of ICU stay and hospital expense.

Conclusions: Patients undergoing OPCABG with severe OSAHS are likely to exhibit a low ejection fraction and poor heart function, which may require a longer ICU stay and incur higher hospital expenses.

Keywords: Complications; Coronary artery bypass grafting; Ejection fraction; Obstructive sleep apnea hypopnea syndrome; Portable sleep monitor.

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