期刊
JOURNAL OF CLINICAL MEDICINE
卷 11, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/jcm11092459
关键词
coronary artery disease; coronary artery bypass grafting; atrial fibrillation; obstructive sleep apnea
资金
- Swedish Research Council [521-2011-537, 521-2013-3439]
- Swedish Heart-Lung Foundation [20080592, 20090708, 20100664, ALFGBG-11538, ALFGBG-150801]
- Research fund at Skaraborg Hospital [VGSKAS-4731, VGSKAS-5908, VGSKAS-9134, VGSKAS-14781, VGSKAS-40271, VGSKAS-116431]
- Skaraborg Research and Development Council [VGFOUSKB-46371]
- Heart Foundation of Karnsjukhuset
- ResMed Foundation
- ResMed Ltd.
- ResMed Sweden
Postoperative atrial fibrillation (POAF) is common in patients with coronary artery disease (CAD) after coronary artery bypass grafting (CABG). This study found that severe obstructive sleep apnea (OSA) is significantly associated with POAF in CAD patients undergoing CABG.
Postoperative atrial fibrillation (POAF) occurs in 20-50% of patients with coronary artery disease (CAD) after coronary artery bypass grafting (CABG). Obstructive sleep apnea (OSA) is also common in adults with CAD, and may contribute to POAF as well to the reoccurrence of AF in patients at long-term. In the current secondary analysis of the Randomized Intervention with Continuous Positive Airway Pressure (CPAP) in Coronary Artery Disease and Obstructive Sleep Apnea (RICCADSA) trial (Trial Registry: ClinicalTrials.gov; No: NCT 00519597), we included 147 patients with CABG, who underwent a home sleep apnea testing, in average 73 +/- 30 days after the surgical intervention. POAF was defined as a new-onset AF occurring within the 30 days following the CABG. POAF was observed among 48 (32.7%) patients, occurring within the first week among 45 of those cases. The distribution of the apnea-hypopnea-index (AHI) categories < 5.0 events/h (no-OSA); 5.0-14.9 events/h (mild OSA); 15.0-29.9 events/h (moderate OSA); and >= 30 events/h (severe OSA), was 4.2%, 14.6%, 35.4%, and 45.8%, in the POAF group, and 16.2%, 17.2%, 39.4%, and 27.3%, respectively, in the no-POAF group. In a multivariate logistic regression model, there was a significant risk increase for POAF across the AHI categories, with the highest odds ratio (OR) for severe OSA (OR 6.82, 95% confidence interval 1.31-35.50; p = 0.023) vs. no-OSA, independent of age, sex, and body-mass-index. In the entire cohort, 90% were on beta-blockers according to the clinical routines, they all had sinus rhythm on the electrocardiogram at baseline before the study start, and 28 out of 40 patients with moderate to severe OSA (70%) were allocated to CPAP. During a median follow-up period of 67 months, two patients (none with POAF) were hospitalized due to AF. To conclude, severe OSA was significantly associated with POAF in patients with CAD undergoing CABG. However, none of those individuals had an AF-reoccurrence at long term, and whether CPAP should be considered as an add-on treatment to beta-blockers in secondary prevention models for OSA patients presenting POAF after CABG requires further studies in larger cohorts.
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