ARCHIVOS DE BRONCONEUMOLOGIA, cilt.44, sa.1, ss.3-7, 2008 (SCI-Expanded)
BACKGROUND AND OBJECTIVE: In a split-night study, the first part consists of standard polysomnography (PSG) for the diagnosis of obstructive sleep apnea syndrome while the second part is used to establish a suitable level of continuous positive airway pressure. The aim of our study was to compare the sleep and respiratory parameters during the first 3 hours of the night with the values found during the remainder of sleep and during the whole night.