Effects of Sedation on Auditory Brainstem Response in Rett Syndrome

Joseph P Pillion, Genila M Bibat, Sakkubai Naidu

Research output: Contribution to journalArticle

Abstract

Prolongation of the I-V interpeak latency intervals have been reported in Rett syndrome and other neurodevelopmental disorders. It has been suggested that the use of sedation may account for differences in the interpeak latency intervals when comparisons are made across diagnostic groups if sedated control groups are not used for the basis of comparison. This study examined the effects of sedation on auditory brainstem response interpeak latency intervals (i.e., I-III, III-V, and I-V) in two groups: (1) a group with Rett syndrome who were positive for mutations in the MECP2 gene and (2) a group negative for mutations in the MECP2 gene but who were severely to profoundly delayed with other causes of mental retardation. To further assess the effects of sedation, a third group of sedated and nonsedated female participants, taken from an in-house normative auditory brainstem response database was also included. An analysis of variance indicated (1) longer I-V interpeak latency intervals in the sedated participants with Rett syndrome; (2) longer III-V interpeak latency intervals in the mutation-positive participants as compared to non-Rett syndrome, mutation-negative participants; and (3) no significant effects of sedation on the I-III, III-V, or I-V interpeak latency intervals among the normative group participants, according to t tests. The findings suggest a possible biological basis for the discrepancy in the literature on auditory brain stem responses in Rett syndrome, and warrant cautious interpretation of auditory brainstem responses findings in sedated subjects with Rett syndrome, as well as in those with mental retardation and seizures.

Original languageEnglish (US)
Pages (from-to)331-334
Number of pages4
JournalPediatric Neurology
Volume42
Issue number5
DOIs
StatePublished - May 2010

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Rett Syndrome
Brain Stem Auditory Evoked Potentials
Mutation
Intellectual Disability
Genes
Reaction Time
Analysis of Variance
Seizures
Databases
Control Groups

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health
  • Developmental Neuroscience
  • Neurology
  • Medicine(all)

Cite this

Effects of Sedation on Auditory Brainstem Response in Rett Syndrome. / Pillion, Joseph P; Bibat, Genila M; Naidu, Sakkubai.

In: Pediatric Neurology, Vol. 42, No. 5, 05.2010, p. 331-334.

Research output: Contribution to journalArticle

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