A Case of Nocturnal Behavioral Disturbance in a Patient with Parkinsonism
Narine M. Nadryan1,2 *, Elza A. Balian1,2, Lilit G. Atabekyan1, Zaruhi D. Tavadyan1,2,
Samson G. Khachatryan1,2
1 Parkinson’s Disease and Movement Disorder
Center, Sleep Medicine and Epilepsy Center,
Somnus Neurology Clinic, Yerevan, Armenia
2 Department of Neurology and Neurosurgery,
Avdalbekyan National Institute of Health,
Yerevan, Armenia
ABSTRACT
We describe a case of a patient with Parkinsonian syndrome and dementia who presented with complaints of nocturnal behaviors and daytime sleepiness. The patient’s sleep problem was suspected as probable rapid eye movement sleep behavioral disorder. However, polysomnography revealed obstructive sleep apnea, while the observed behaviors were defined as nocturnal visual hallucinations. The patient corresponded to the revised clinical criteria for probable dementia with Lewy bodies.
Keywords: Parkinsonism, Lewy-body dementia, hallucinations, REM sleep behavior disorder