[Electrophysiological recording of nocturnal sleep and the multiple sleep latency test in obstructive sleep apnea syndrome].

Polysomnographic studies were performed in 6 patients with obstructive sleep apnoea syndrome (OSA). The sleep study consisted of: electroencephalography, electromyography, electrooculography, electrocardiography, pulse oximetry and observation of respiration. During day multiple sleep latency tests were performed.