REM sleep behavior disorder may have worse Parkinson’s Disease outcome


  • Rapid eye movement (REM) sleep behavior disorder (RBD) in those with Parkinson’s disease (PD) may increase the risk for cognitive decline, and with postural instability and gait dysfunction (PIGD), a faster progression to motor symptom.

Why this matters

  • Features of probable RBD (pRBD) may help in determining which patients may have a higher probability of cognitive decline and deteriorating motor symptoms.