Prognosis of functional neurologic disorders

Area of Science:

• Neurology
• Psychiatry

Background:

• Functional neurologic disorders (FNDs) present significant challenges for patients, carers, and clinicians.
• Understanding the prognosis of FNDs is crucial for guiding patient care and treatment decisions.

Purpose of the Study:

• To review and synthesize data on the prognosis of functional neurologic disorders.
• To identify factors that predict outcomes in patients with FNDs.

Main Methods:

• Systematic review of existing literature, including studies on functional motor disorders, dissociative (nonepileptic) seizures, and functional visual and sensory symptoms.
• Analysis of prognostic factors and outcome measures across heterogeneous study samples.

Main Results:

• The prognosis for FNDs is generally unfavorable, with a majority of patients showing persistent or worsened symptoms at follow-up.
• Quality of life and working status were frequently poor. Long symptom duration was a significant negative predictor.
• Early diagnosis and younger age appeared to predict better outcomes, while emotional and personality disorders had inconsistent predictive value.

Conclusions:

• Functional neurologic disorders often have a poor long-term prognosis, underscoring the need for effective interventions.
• Identifying predictive factors like symptom duration, age, and diagnostic timeliness is key to improving patient outcomes.