High prevalence of sleep apnea in heart failure outpatients: even in patients with preserved systolic function - PubMed (original) (raw)
Comparative Study
High prevalence of sleep apnea in heart failure outpatients: even in patients with preserved systolic function
Tobias E Herrscher et al. J Card Fail. 2011 May.
Abstract
Background: Sleep-disordered breathing (SDB) is common in patients with reduced ejection fraction (EF). However, little is known about the prevalence of SDB in a general heart failure population including patients with preserved EF (HFPEF).
Methods: We prospectively enrolled stable heart failure outpatients from our heart failure clinic to assess the prevalence of SDB independent of systolic left ventricular function.
Results: Among 115 patients (62% with reduced EF, 38% with preserved EF, New York Heart Association Class II-IV) SDB was present in 81% (27% central sleep apnea, 54% obstructive sleep apnea [OSA]). HFPEF patients had SDB in 80% of the cases, 62% had OSA. This group had significantly more hypertension.
Conclusions: This study shows a high prevalence of SDB in a general heart failure population, also in patients with HFPEF. These patients have predominantly OSA. Especially in patients with HFPEF SDB should be kept in mind and referral to a sleep specialist should be considered.
Copyright © 2011 Elsevier Inc. All rights reserved.
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