Evoked potentials in children with Wilson's disease

Area of Science:

• Neuroscience
• Clinical Neurology
• Genetics

Background:

• Wilson's disease (WD) is a genetic disorder causing copper accumulation.
• Early detection and treatment are crucial to prevent irreversible neurological damage.
• Current diagnostic methods may not detect subclinical disease stages effectively.

Purpose of the Study:

• To evaluate the utility of multimodal evoked potentials (EPs) in detecting early neurological involvement in Wilson's disease.
• To compare EP abnormalities in patients, presymptomatic siblings, asymptomatic siblings, and parents.
• To determine if EPs can identify subclinical disease before other diagnostic markers.

Main Methods:

• Multimodal evoked potentials (EPs) were assessed in 13 children with newly diagnosed WD and their first-degree relatives.
• EPs included brainstem auditory EPs and visual EPs.
• Results were compared between patient groups and correlated with other diagnostic tests.

Main Results:

• EP abnormalities were found in 38.5% of patients and 42.9% of presymptomatic siblings.
• Abnormal VEP P100 latency was significantly more frequent in presymptomatic siblings (42.9%) than asymptomatic siblings (7.1%).
• EP abnormalities occurred earlier than Kayser-Fleischer rings and MRI lesions, with normal results from EEG, EMG, and MRI in relatives.

Conclusions:

• Abnormal EPs can indicate early, subclinical neurological involvement in Wilson's disease.
• EP recordings are valuable for family screening and may guide early treatment initiation.
• EPs offer a sensitive tool for monitoring treatment efficacy and disease progression in early-stage WD.