Abstract
We studied 44-year old man with heart failure (ejection fraction −25%). Obesity, arterial hypertension, snoring and excessive daytime sleepiness suggested concomitant obstructive sleep apnoea. Limited polysomnography with Polymesam revealed typical Cheyne-Stokes respiration with mainly central apnoeas (RDI = 48/hour). We did not fi nd any obstructive episodes during sleep study. Patient responded to CPAP therapy and apnoea hypo-pnoe index decreased to 12/hour on 8 mbar pressure.