Fig. 2.
Diagnostic and therapeutic algorithm for sleep disturbances in Parkinson’s disease. Flowchart suggesting a comprehensive approach towards pragmatic diagnostic and therapeutic options for sleep disturbances in Parkinson’s disease. CBT-I, Cognitive behavioral therapy for insomnia; NMS, non-motor symptoms; PD, Parkinson’s disease; PLMD, Periodic limb movement disorder; RBD, REM sleep behavior disorder; RLS, restless legs syndrome; SDB, sleep disordered breathing; vPSG, video polysomnography.