Effects of low-level laser therapy in autism spectrum disorder

Gerry Leisman, Calixto Machado, Yanin Machado, Mauricio Chinchilla-Acosta

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The study examined the efficacy of low-level laser therapy, a form of photobiomodulation, for the treatment of irritability associated with autistic spectrum disorder in children and adolescents aged 5–17 years. Twenty-one of the 40 participants received eight 5-min procedures administered to the base of the skull and temporal areas across a 4-week period (test, i.e., active treatment participants). All the participants were evaluated with the Aberrant Behavior Checklist (ABC), with the global scale and five subscales (irritability/agitation, lethargy/social withdrawal, stereotypic behavior, hyperactivity/noncompliance, and inappropriate speech), and the Clinical Global Impressions (CGI) Scale including a severity-of-illness scale (CGI-S) and a global improvement/change scale (CGI-C). The evaluation took place at baseline, week 2 (interim), week 4 (endpoint), and week 8 (post-procedure) of the study. The adjusted mean difference in the baseline to study endpoint change in the ABC irritability subscale score between test and placebo participants was −15.17 in favor of the test procedure group. ANCOVA analysis found this difference to be statistically significant (F = 99.34, p < 0.0001) compared to the baseline ABC irritability subscale score. The study found that low-level laser therapy could be an effective tool for reducing irritability and other symptoms and behaviors associated with the autistic spectrum disorder in children and adolescents, with positive changes maintained and augmented over time.

Original languageEnglish
Title of host publicationAdvances in Experimental Medicine and Biology
PublisherSpringer New York LLC
Pages111-130
Number of pages20
DOIs
StatePublished - 2018

Publication series

NameAdvances in Experimental Medicine and Biology
Volume1116
ISSN (Print)0065-2598
ISSN (Electronic)2214-8019

Bibliographical note

Publisher Copyright:
© Springer International Publishing AG, part of Springer Nature 2018.

Keywords

  • Autism spectrum disorder
  • Brain
  • Clinical trial
  • Low-level laser therapy
  • Neuronal networks
  • Photobiomodulation

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology

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