Polysomnographic features differentiating disorder of arousals from sleep-related hypermotor epilepsy.

Proserpio, Paola; Loddo, Giuseppe; Zubler, Frédéric; Ferini-Strambi, Luigi; Licchetta, Laura; Bisulli, Francesca; Tinuper, Paolo; Agostoni, Elio Clemente; Bassetti, Claudio; Tassi, Laura; Menghi, Veronica; Provini, Federica; Nobili, Lino (2019). Polysomnographic features differentiating disorder of arousals from sleep-related hypermotor epilepsy. Sleep, 42(12) 10.1093/sleep/zsz166

Text Proserpio, 2019, Polysomnographic features.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (213kB)

OBJECTIVE

The differential diagnosis between sleep-related hypermotor epilepsy (SHE) and disorders of arousal (DOA) may be challenging. We analyzed the stage and the relative time of occurrence of parasomnic and epileptic events to test their potential diagnostic accuracy as criteria to discriminate SHE from DOA.

METHODS

Video-polysomnography recordings of 89 patients with a definite diagnosis of DOA (59) or SHE (30) were reviewed to define major or minor events and to analyze their stage and relative time of occurrence. The "event distribution index" was defined on the basis of the occurrence of events during the first versus the second part of sleep period time. A group analysis was performed between DOA and SHE patients to identify candidate predictors and to quantify their discriminative performance.

RESULTS

The total number of motor events (i.e. major and minor) was significantly lower in DOA (3.2 ± 2.4) than in SHE patients (6.9 ± 8.3; p = 0.03). Episodes occurred mostly during N3 and N2 in DOA and SHE patients, respectively. The occurrence of at least one major event outside N3 was highly suggestive for SHE (p = 2*e-13; accuracy = 0.898, sensitivity = 0.793, specificity = 0.949). The occurrence of at least one minor event during N3 was highly suggestive for DOA (p = 4*e-5; accuracy = 0.73, sensitivity = 0.733, specificity = 0.723). The "event distribution index" was statistically higher in DOA for total (p = 0.012) and major events (p = 0.0026).

CONCLUSION

The stage and the relative time of occurrence of minor and major motor manifestations represent useful criteria to discriminate DOA from SHE episodes.

Interest & Impact

Downloads

1 since deposited on 26 Nov 2019
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item