Prednisone and Deflazacort in Duchenne Muscular Dystrophy: Do They Play a Different Role in Child Behavior and...

Area of Science:

• Pediatric Neurology
• Child Psychology
• Musculoskeletal Disorders

Background:

• Duchenne Muscular Dystrophy (DMD) is a progressive genetic disorder affecting muscle function.
• Corticosteroids like prednisone and deflazacort are commonly used to manage DMD, but their impact on behavior and quality of life is not fully understood.
• Ambulant boys with DMD often experience behavioral and psychosocial challenges.

Purpose of the Study:

• To compare the effects of prednisone and deflazacort on child behavior and psychosocial quality of life in ambulant boys with DMD.
• To assess behavioral differences between steroid-naïve boys and those on prednisone or deflazacort.
• To identify factors influencing psychosocial quality of life in boys with DMD.

Main Methods:

• Prospective natural-history study involving 67 ambulant boys with DMD.
• Parents completed the Child Behavior Checklist (CBCL) for behavioral assessment.
• Parents and boys completed the PedsQL™4.0 for quality of life evaluation.
• Participants were categorized into prednisone, deflazacort, or steroid-naïve groups.

Main Results:

• Boys with DMD exhibited higher rates of general behavioral problems compared to age-matched peers.
• No significant differences in overall CBCL syndrome scales were found between treatment groups.
• Boys on deflazacort showed more withdrawn behaviors; boys on prednisone showed more aggressive behaviors.
• Age and behavioral issues significantly predicted psychosocial quality of life variance.

Conclusions:

• Steroid use (prednisone or deflazacort) was not associated with increased overall behavioral problems in boys with DMD.
• Specific behavioral patterns differed between prednisone and deflazacort groups.
• Behavioral assessment and management are critical for improving psychosocial quality of life in boys with DMD.