1. This article reviews the prevalence, diagnosis, pathophysiology and management of psychosis in Parkinson's disease. 2. Psychosis in Parkinson's disease has been associated with all antiparkinsonian medications. The most common symptoms are vivid disturbing dreams, visual hallucinations and paranoid delusions. 3. The emergence of psychosis reduces the patient's functional capacity and increases caregiver burden. It also poses a therapeutic dilemma because effective treatment of psychotic symptoms may result in worsening of motor symptoms and vice versa. 4. Increased physician awareness is essential for proper diagnosis and management. Withdrawal of anticholinergic medications and amantadine followed by levodopa dose adjustment is effective in many patients. 5. Atypical neuroleptics, in low doses, may be successful when other measures have failed. However, these agents are not approved for treating Parkinsonian psychosis and must be considered as investigational therapies.
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http://dx.doi.org/10.1016/0278-5846(95)00114-b | DOI Listing |
Parkinsonism Relat Disord
January 2025
Movement Disorders Unit, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Background: The Movement Disorder Society Non-Motor Rating Scale (MDS-NMS) serves as a comprehensive clinical assessment tool for non-motor symptoms in Parkinson's disease (PD) OBJECTIVES: This study aims to validate the Portuguese version of the MDS-NMS, addressing the critical need for culturally adapted rating scales in Portuguese-speaking populations.
Methods: This multicenter, cross-sectional study engaged native Portuguese-speaking PD patients from 16 Movement Disorders Centers across Portugal and Brazil. We conducted a meticulous translation process into Portuguese, including forward-backward translation and cognitive pretesting.
Gen Hosp Psychiatry
January 2025
Stanley Aronson Chair in Neurodegenerative Disorders, Director, Movement Disorders Program, Butler Hospital, Professor, Department of Neurology, Alpert Medical School of Brown University. Electronic address:
J Psychiatr Pract
January 2025
Department of Psychiatry, Centre for Addiction Medicine, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Charles Bonnet syndrome (CBS) is a clinical condition in which patients with visual impairment experience visual hallucinations (VH) in the presence of clear consciousness. It typically occurs in elderly people and confuses clinicians with multiple differential diagnoses due to VH, which can be present in a variety of clinical conditions ranging from psychosis to neurocognitive disorders (eg, neurocognitive disorder with Lewy bodies). In the latter, the concomitant presence of cognitive decline and parkinsonism aids the diagnosis.
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January 2025
Department of Psychiatry, Kaiser Permanente Oakland Medical Center, Oakland, CA, USA.
Background: Multiple studies have demonstrated associations between psychiatric conditions and Parkinson's disease (PD) development; fewer have examined psychotic-spectrum disorders and PD development.
Objective: The objective was to assess the prevalence of psychotic-spectrum disorders with and without depression and anxiety preceding a PD diagnosis.
Methods: In this retrospective, case-control study of adults > 60 years of age, cases were identified by PD diagnosis and controls were identified in a 3:1 ratio by ambulatory encounter from 2015 to 2020.
Eur Psychiatry
January 2025
Mental Health Services Noord-Holland-Noord, Alkmaar, the Netherlands; Dutch Clozapine Collaboration Group, Alkmaar, the Netherlands.
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