In the October issue of Archives of Neurology, a physician who treats Parkinson Disease (PD) reports that a few of his patients have begun sleepwalking.

For the past 2 years, Dr Rositsa Poryazova has treated 165 PD patients. Adult-onset of sleepwalking was identified in 6 of those patients. There were an equal number of men and women with a mean age of 66 years-old. Medications in these 6 patients included levodopa, dopamine agonists, selective serotonin reuptake inhibitor antidepressants, and hypnotics. These 6 patients underwent a systematic clinical assessment of their sleep problems, which included standard questionnaires, clinical examination, and estimation of PD severity.

What Poryazova found was that sleepwalking appeared more than 4 years after the onset of Parkinson’s.