Evaluating the effect of repetitive transcranial magnetic stimulation on sleep difficulties in children with autism...

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Sleep Medicine

Background:

• Sleep difficulties are prevalent in children with autism spectrum disorder (ASD), significantly impacting their quality of life and development.
• Current interventions for sleep problems in ASD have limitations, necessitating exploration of novel therapeutic approaches.
• Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive neuromodulation technique with potential therapeutic applications.

Purpose of the Study:

• To evaluate the efficacy and safety of alpha rhythm-guided repetitive transcranial magnetic stimulation (α-rTMS) in ameliorating sleep difficulties among children diagnosed with ASD.
• To assess the durability of treatment effects on sleep parameters in children with ASD following α-rTMS intervention.

Main Methods:

• A randomized controlled trial involving 20 children (6-12 years) with ASD (Level 2) assigned to either an α-rTMS treatment group or a waitlist control group.
• The treatment group received ten α-rTMS sessions over two weeks, followed by a crossover for the control group.
• Sleep difficulties were objectively and subjectively assessed using the Children's Sleep Habit Questionnaire (CSHQ), actigraphy, and polysomnography (PSG) at baseline, post-intervention, and at one and four-month follow-ups.

Main Results:

• The α-rTMS treatment group demonstrated significant improvements in total CSHQ scores and specific subdomains, including bedtime resistance, sleep onset delay, and sleep duration, compared to the waitlist control group.
• Following α-rTMS, the waitlist group showed improvements in sleep-disordered breathing, parasomnia, and sleep duration, alongside enhanced PSG measures of Waking After Sleep Onset (WASO) and sleep efficiency.
• Subjective improvements in CSHQ scores persisted up to four months post-intervention, with actigraphy confirming sustained improvements in WASO. Reported side effects of α-rTMS were mild and transient.

Conclusions:

• This randomized controlled trial provides preliminary evidence supporting the effectiveness and safety of α-rTMS for improving subjective sleep difficulties in children with ASD.
• The observed improvements in sleep parameters suggest α-rTMS as a promising non-invasive neuromodulation strategy for managing sleep disturbances in this population.
• Further research with larger sample sizes and sham-controlled designs is recommended to confirm these findings and establish optimal treatment protocols.