Polysomnography and Multiple Sleep Latency Test in Narcolepsy

Polysomnography and Multiple Sleep Latency Test in Narcolepsy Ji-Eun Kim Department Neurology, School of Medicine, Catholic University of Daegu The multiple sleep latency test (MSLT) has played a major role in the diagnosis of narcolepsy. The MSLT is indicated as part of the evaluation of patients with suspected narcolepsy and may be useful in the evaluation of patients with suspected idiopathic hypersomnia. The MSLT cannot be used in isolation to confirm or exclude narcolepsy, is indicated only in selected patients with excessive daytime sleepiness, and is most valuable when interpreted in conjunction with clinical findings.