Abstract
Left atrial enlargement (LAE) is an independent predictor of stroke and death [ [1] Benjamin E.J. D'Agostino R.B. Belanger A.J. Wolf P.A. Levy D. Left atrial size and the risk of stroke and death. The Framingham Heart Study. Circulation. 1995; 92: 835-841 Crossref PubMed Scopus (821) Google Scholar ]. In patients with congestive heart failure (CHF) LAE has a high prevalence [ [2] Rossi A. Cicoira M. Zanolla L. et al. Determinants and prognostic value of left atrial volume in patients with dilated cardiomyopathy. J Am Coll Cardiol. 2002; 40: 1425 Abstract Full Text Full Text PDF PubMed Scopus (284) Google Scholar ]. Several conditions such as left ventricular remodeling, mitral regurgitation and atrial fibrillation (AF) are known to cause LAE in CHF patients. Lately attention has grown on the high prevalence of sleep disordered breathing (SDB) in CHF patients [ [3] Javaheri S. Parker T.J. Liming J.D. et al. Sleep apnea in 81 ambulatory male patients with stable heart failure. Types and their prevalences, consequences, and presentations. Circulation. 1998; 97: 2154-2159 Crossref PubMed Scopus (1022) Google Scholar ]. SDB is also associated with poor prognosis in patients with CHF. We investigated 234 consecutive CHF patients to evaluate whether there is a relation between LAE and SDB.
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