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Related Experiment Video

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Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice
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Effect of General Anesthesia on Auditory Brainstem Response Testing.

Ogulcan Gundogdu1, Handan Yaman1, Pelin Karaaslan2

  • 1Istanbul Medipol University Faculty of Health Sciences, Department of Audiology, Istanbul, Turkey.

Medeniyet Medical Journal
|June 23, 2022
PubMed
Summary

General anesthesia affects auditory brainstem response (ABR) test results in children. ABR amplitudes decreased, latencies prolonged, and hearing thresholds were higher under anesthesia compared to natural sleep.

Keywords:
Auditory brainstem responsegeneral anesthesiahearingevaluation

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Area of Science:

  • Audiology
  • Neuroscience
  • Pediatric Medicine

Background:

  • Auditory Brainstem Response (ABR) testing is crucial for assessing auditory pathway function in children.
  • While typically performed during natural sleep, ABR can also be conducted under general anesthesia.
  • Understanding the impact of anesthesia on ABR is vital for accurate interpretation.

Purpose of the Study:

  • To compare Auditory Brainstem Response (ABR) findings in children who underwent testing under general anesthesia versus natural sleep.
  • To investigate the effects of general anesthesia on ABR parameters including amplitude, latency, and hearing thresholds.

Main Methods:

  • Retrospective study comparing two groups of children undergoing ABR testing.
  • Anesthesia group (n=42) tested under general anesthesia; Control group (n=58) tested during natural sleep.
  • Comparison of click ABR results: wave amplitudes, latencies, interpeak latencies, and hearing thresholds.

Main Results:

  • Significantly decreased amplitudes for waves III and V in the anesthesia group.
  • Prolonged latencies for waves I and V, and interpeak latencies (I-V, III-V) under general anesthesia.
  • Higher click hearing thresholds were observed in children tested under anesthesia.

Conclusions:

  • General anesthesia significantly alters Auditory Brainstem Response (ABR) results in pediatric patients.
  • Audiologists and clinicians must consider anesthesia effects when interpreting ABR data.
  • Families should be informed about potential ABR result modifications due to anesthesia.