Progression of motor disability in cerebral palsy: The role of concomitant epilepsy

Area of Science:

• Neurology
• Pediatrics
• Developmental Disabilities

Background:

• Cerebral palsy (CP) is a group of disorders affecting movement and posture.
• Epilepsy is a common comorbidity in CP, potentially impacting motor function.
• The relationship between epilepsy characteristics and motor disability progression in CP requires further investigation.

Purpose of the Study:

• To investigate the clinical characteristics of epilepsy in relation to motor disability progression in cerebral palsy (CP).
• To identify epilepsy features associated with worsening motor function in CP patients.

Main Methods:

• Retrospective cohort study of 65 CP patients hospitalized for over 15 years (2005-2020).
• Patients categorized into unchanging CP and worsening CP groups based on motor disability progression.
• Collected data included sex, age, etiology, and epilepsy clinical features, including seizure onset age and frequency.

Main Results:

• 37 patients had worsening CP, while 28 had unchanging CP over 15 years.
• Earlier seizure onset (within the first year of life) was more common in unchanging CP (62.5%) versus worsening CP (70.8%, p=0.03).
• Higher daily or weekly seizure frequency was significantly more apparent in the worsening CP group (25.0%, p=0.03).

Conclusions:

• Younger age at seizure onset correlates with less severe motor disability consequences in CP.
• Increased seizure frequency is linked to reduced functional brain connectivity, contributing to motor decline.
• Epilepsy characteristics, particularly seizure onset age and frequency, are critical factors in the progressive motor, intellectual, sensory, and behavioral deficits observed in CP.