Recommandations de la Société française de recherche et de médecine du sommeil (SFRMS) Procédure de réalisation des tests itératifs de vigilance

The multiple sleep latency test (MSLT) and the maintenance of wakefulness test (MWT) are useful neurophysiological objective tests for evaluating excessive daytime sleepiness (MSLT) and altertness (MWT). The MSLT is a validated, objective measure of the propensity to fall asleep when passive. The MSLT is intended to measure physiological sleep tendency under standardized conditions in the absence of external alerting factors. The test is based on the premise that the degree of sleepiness is reflected by sleep onset latency. The MWT is a validated objective measure of the ability to stay awake for a defined period in passive condition. Both tests are sensitive, to various degrees, to changes after treatment. The MWT is now required to help deciding the ability to drive for professional driver with sleep pathologies. The guideline of these polysomnographic procedures recommended by SFRMS are described in this paper.