Hallucinations, Delusions and Impulse Control Disorders in Parkinson Disease

Clin Geriatr Med. 2020 Feb;36(1):105-118. doi: 10.1016/j.cger.2019.09.004. Epub 2019 Sep 6.

Abstract

Psychotic and compulsive symptoms in Parkinson disease are highly prevalent and associated with poor outcomes and greater caregiver burden. When acute, delirium should be ruled out or treated accordingly. When chronic, comorbid systemic illnesses, dementia, and psychiatric disorders should be considered. Reduction and discontinuation of anticholinergics, amantadine, dopamine agonists, and levodopa as tolerated, as well as adjunctive clozapine or quetiapine are frequently effective to manage Parkinson disease psychosis. Pimavanserin appears effective but is not widely available, and more experience is needed. Dopamine agonist discontinuation is usually successful for impulse control disorders, but requires frequent monitoring, documentation, and caregiver involvement.

Keywords: Compulsions; Delirium; Delusions; Dopamine dysregulation syndrome; Hallucinations; Impulse control disorders; Parkinson disease; Psychosis.

Publication types

  • Review

MeSH terms

  • Aged
  • Diagnosis, Differential
  • Disruptive, Impulse Control, and Conduct Disorders* / etiology
  • Disruptive, Impulse Control, and Conduct Disorders* / therapy
  • Humans
  • Parkinson Disease* / complications
  • Parkinson Disease* / psychology
  • Parkinson Disease* / therapy
  • Patient Care Management / methods*
  • Perceptual Disorders* / etiology
  • Perceptual Disorders* / therapy
  • Psychotic Disorders* / etiology
  • Psychotic Disorders* / therapy