Lewy body disease in a patient with REM sleep disorder

To the Editor : Uchiyama et al.1 reported a patient with REM sleep disorder associated with Lewy body disease. It is possible that the association is more frequent than suspected as we recently treated a similar case. Case repoprt Mr. A. is a 73-year-old man who was admitted to a neuropsychiatric service because of verbal abuse and non-redirectable behavior at his nursing home. The patient had symptoms of Parkinson's disease for 2 years and carried the diagnosis of a REM sleep behavior disorder for 15 years. A sleep study done 2 years ago showed non-inhibition of motor activity during REM sleep. Mr. A had a previous psychiatric admission 1 month earlier that was triggered by his wife's death after a 2-year treatment for pancreatic cancer. Three weeks before her death, the patient was …