Huntington's disease: looking beyond the movement disorder

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Huntington's disease (HD) is a progressive neurodegenerative disorder.
• While motor symptoms are characteristic, non-motor symptoms like psychiatric, behavioral, and cognitive changes are common and can precede motor onset.
• These non-motor comorbidities significantly impact patient function and quality of life.

Purpose of the Study:

• To review the clinical presentation of psychiatric, behavioral, and cognitive symptoms in Huntington's disease.
• To discuss current treatment strategies for these non-motor manifestations of HD.
• To provide guidance for treating psychiatrists managing patients with Huntington's disease.

Main Methods:

• This is a review article.
• Literature search on clinical presentation and treatment of non-motor symptoms in Huntington's disease.
• Synthesis of existing knowledge for clinical application.

Main Results:

• Psychiatric symptoms (e.g., depression, anxiety, psychosis) are prevalent in HD.
• Cognitive deficits (e.g., executive dysfunction, memory impairment) are common.
• Behavioral changes (e.g., apathy, irritability, aggression) frequently occur.

Conclusions:

• Non-motor symptoms are integral to the Huntington's disease phenotype and require proactive management.
• Comprehensive assessment and tailored treatment of psychiatric, behavioral, and cognitive symptoms are essential for improving patient outcomes.
• Psychiatrists play a vital role in the multidisciplinary care of individuals with Huntington's disease.