Related Articles Cheyne-Stokes respiration in heart failure: Cycle length is dependent on left ventricular ejection fraction.

Sleep Med. 2010 Jan 9;

Authors: Wedewardt J, Bitter T, Prinz C, Faber L, Horstkotte D, Oldenburg O


BACKGROUND: Cheyne-Stokes respiration (CSR) is common in patients with congestive heart failure (CHF) and is associated with poor prognosis. The aim of this study was to analyse the characteristics of CSR in patients with varying degrees of impaired left ventricular ejection fraction (LVEF). METHODS: A total of 104 patients with CSR (apnea-hypopnea index [AHI]15/h) and exertional dyspnea were divided into FIVE groups according to their LVEF (50%) and the worst LVEF (