REM sleep behavior disorder
Sleep disorder where patients act out dreams due to loss of normal muscle paralysis during REM sleep.
Full Definition
REM sleep behavior disorder (RBD) is a parasomnia characterized by the loss of normal muscle atonia during rapid eye movement (REM) sleep, allowing patients to physically act out their dreams. In geriatric populations, RBD is particularly significant as it often serves as an early indicator of neurodegenerative disorders, especially synucleinopathies like Parkinson's disease and dementia with Lewy bodies. The disorder can result in injury to patients or bed partners and requires careful evaluation and management, including environmental safety measures and possible pharmacological intervention.
Usage
Usage note: Consider as potential early sign of neurodegenerative disease.
In Context
- "The patient's history of REM sleep behavior disorder raised concerns about possible underlying Lewy body dementia." — Neurological consultation
- "Safety modifications included removing sharp objects from the bedroom due to the patient's REM sleep behavior disorder." — Discharge planning