Actigraphy for screening patients with isolated REM sleep behavior disorder and similar conditions

Takeaway

  • The dichotomy index (I

Why this matters

  • Studies have shown that iRBD can be a prodromal stage of synucleinopathies developing into Parkinson’s disease, dementia with Lewy bodies or multiple system atrophy.

  • The current diagnostic criteria of iRBD include video-polysomnography (v-PSG), which require lot of time and resources, and screening questionnaires, which have limited validity; actigraphy could be an alternative to circumvent those limitations.