Related Experiment Videos
Rapid eye movement sleep behaviour disorder, depression and cognitive impairment. Case study
N A Clarke1, A J Williams, M D Kopelman
1Lambeth Healthcare NHS Trust, St Thomas' Hospital, London.
The British Journal of Psychiatry : the Journal of Mental Science
|February 7, 2001
Summary
This case highlights the link between REM sleep behaviour disorder and depression, which can mimic early dementia. Prompt diagnosis and treatment of REM sleep behaviour disorder are crucial for managing associated conditions.
Area of Science:
- Neurology
- Sleep Medicine
- Psychiatry
Background:
- Rapid eye movement (REM) sleep behaviour disorder is a recently defined diagnostic category.
- Its association with treatable depressive conditions has not been previously documented.
Observation:
- A 74-year-old male patient presented with a history of depression and REM sleep behaviour disorder.
- Mild cognitive impairment was also noted in the patient's medical history.
Findings:
- The patient's depression was successfully treated with sertraline.
- Nocturnal polysomnography confirmed REM sleep behaviour disorder, treated with clonazepam.
- Subsequent diagnosis of sleep apnoea was managed with nasal continuous positive airways pressure.
- Brain MRI revealed mild atrophy, but neuropsychological testing showed no cognitive decline progression.
Implications:
- This case underscores the potential for REM sleep behaviour disorder to interact with depression and cognitive impairment, potentially being misdiagnosed as early dementia.
- Accurate diagnosis of REM sleep behaviour disorder requires thorough patient history and sleep studies.
- Co-occurring neurological, sleep, and psychiatric conditions can complicate the diagnostic process.