Neuropsychiatric Approaches to Essential and Functional Tremor: A Comparative Study

Area of Science:

• Neurology
• Movement Disorders

Background:

• Differentiating essential tremor (ET) from functional tremor (FT) is clinically challenging due to overlapping symptoms.
• Accurate diagnosis is crucial for effective therapeutic strategies.

Purpose of the Study:

• To identify demographic and psychometric differences between ET and FT.
• To improve diagnostic accuracy and guide treatment for tremor disorders.

Main Methods:

• Prospective study of 96 patients with ET or FT.
• Analysis of demographic data, clinical symptoms, and psychometric scores.
• Statistical analysis including chi-square tests, Fisher's exact test, and logistic regression.

Main Results:

• ET showed higher prevalence in males (p=0.015), lower BMI, and earlier age of onset (p=0.050, p=0.023) compared to FT.
• ET patients had higher cognitive and body image scores.
• FT patients scored higher on depression and anxiety scales.
• A 14.5% misdiagnosis rate highlights the need for improved diagnostic criteria.

Conclusions:

• Demographic and psychometric distinctions between ET and FT were established.
• Findings can aid clinicians in accurate diagnosis and personalized treatment.
• Comprehensive psychometric evaluations are recommended for differentiating tremor types.