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Abstract 17143: Obstructive and Central Sleep Apnea and Risk of Incident Atrial Fibrillation
INTRODUCTION:
Prior studies have documented a higher prevalence of atrial fibrillation (AF) in those with obstructive sleep apnea (OSA). OSA has been associated with AF recurrence following cardioversion and ablation, and with prevalent and incident AF in cross-sectional and retrospective studies. Central sleep apnea (CSA) also has been associated with AF in patients with heart failure. However, data from prospective cohorts are sparse and few studies have evaluated the association of CSA with AF in population studies.
METHODS:
We assessed the association of OSA and CSA with incident AF among 3,420 subjects without a history of AF in the Sleep Heart Health Study (SHHS), a prospective, community-based study designed to evaluate the cardiovascular consequences of sleep disordered breathing. Subjects underwent overnight polysomnography at baseline and were
followed over time for the development of incident AF, documented at any time after baseline polysomnogram until the end of follow-up. OSA was defined as an obstructive apnea-hypopnea index ≥ 5 and CSA was defined as a central apnea index ≥ 5.
RESULTS:
At baseline, the sample include 1499 men (44.4%) with a mean age of 62.4 (±10.9); 1569 (45.9%) subjects met criteria for mild to severe OSA and 54 (1.6%) for CSA. Over a mean follow-up of 8.2 years, 382 cases of incident AF were identified. The prevalence of both OSA and CSA was higher among those who developed AF compared to those who did not (OSA 49% vs 44%, p=0.001 and CSA 5% vs 1.2%, p=0.001). After adjustment for multiple AF risk factors, CSA was associated with an approximately 2-fold increased odds of incident AF (RR=2.38, 95% CI, 1.15-4.94; p = 0.02). The association persisted after exclusion of 258 subjects with a history of heart failure (RR=2.78, 95% CI, 1.28-6.04; p = 0.01). We did not find a significant association of OSA with incident AF (Table).
CONCLUSION:
In our prospective, community-based cohort baseline CSA was associated with incident AF
Obstructive and Central Sleep Apnea and the Risk of Incident Atrial Fibrillation in a Community Cohort of Men and Women
Background: Previous studies have documented a high prevalence of atrial fibrillation (AF) in individuals with obstructive sleep apnea (OSA). Central sleep apnea (CSA) has been associated with AF in patients with heart failure. However, data from prospective cohorts are sparse and few studies have distinguished the associations of obstructive sleep apnea from CSA with AF in population studies. Methods and Results: We assessed the association of obstructive sleep apnea and CSA with incident AF among 2912 individuals without a history of AF in the SHHS (Sleep Heart Health Study), a prospective, community‐based study of existing (“parent”) cohort studies designed to evaluate the cardiovascular consequences of sleep disordered breathing. Incident AF was documented by 12‐lead ECG or assessed by the parent cohort. obstructive sleep apnea was defined by the obstructive apnea‐hypopnea index (OAHI). CSA was defined by a central apnea index ≥5 or the presence of Cheyne Stokes Respiration. Logistic regression was used to assess the association between sleep disordered breathing and incident AF. Over a mean of 5.3 years of follow‐up, 338 cases of incident AF were observed. CSA was a predictor of incident AF in all adjusted models and was associated with 2‐ to 3‐fold increased odds of developing AF (central apnea index ≥5 odds ratio [OR], 3.00, 1.40–6.44; Cheyne–Stokes respiration OR, 1.83, 0.95–3.54; CSA or Cheyne–Stokes respiration OR, 2.00, 1.16–3.44). In contrast, OAHI was not associated with incident AF (OAHI per 5 unit increase OR, 0.97, 0.91–1.03; OAHI 5 to <15 OR, 0.84, 0.59–1.17; OAHI 15 to <30 OR, 0.93, 0.60–1.45; OAHI ≥30 OR, 0.76, 0.42–1.36). Conclusions: In a prospective, community‐based cohort, CSA was associated with incident AF, even after adjustment for cardiovascular risk factors