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Objective Assessment of a Hearing Protection Device for Canines.

Joshuah B Klutzke1, George E Moore1, Emily S Curry1

  • 1College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA.

Veterinary Sciences
|June 26, 2026
PubMed
Summary

Canine hearing protection devices (CHPDs) were tested to see if they could prevent noise-induced hearing loss (NIHL) in dogs. Results show CHPDs effectively increase hearing thresholds, protecting canine hearing from loud noises.

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Area of Science:

  • Veterinary Medicine
  • Audiology
  • Animal Science

Background:

  • Noise-induced hearing loss (NIHL) affects both humans and canines, elevating hearing thresholds.
  • Hearing protection devices (HPDs) are used in humans, and while developed for canines, their efficacy in reducing sound has not been objectively verified.

Purpose of the Study:

  • To objectively test a canine hearing protection device (CHPD) for its ability to protect canine hearing.
  • To determine if CHPDs can effectively increase hearing thresholds in canines, thereby reducing the risk of NIHL.

Main Methods:

  • Twenty-one healthy canines (4-69 months) underwent anesthesia for routine sterilization.
  • Hearing thresholds were measured using over-the-ear headphones (OTEH) and Brainstem Auditory Evoked Response (BAER) before and after CHPD application.
Keywords:
brainstem auditory evoked responsecanine hearing protection devicehearing thresholdnoise-induced hearing loss

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  • Sound levels were gradually decreased from 70 dB nHL until wave V became inapparent.

    • Main Results:

    • Median hearing thresholds without CHPD were 40 dB (left ear) and 50 dB (right ear).
    • With CHPDs, median hearing thresholds increased to over 70 dB in both ears (AU) for 20 out of 21 canines.
    • The CHPD effectively blocked sounds of 70 dB nHL or less, significantly increasing hearing thresholds.

    Conclusions:

    • The tested CHPD objectively increases canine hearing thresholds.
    • This canine hearing protection device demonstrates potential in mitigating noise-induced hearing loss in dogs.
    • Further application of validated CHPDs could reduce the incidence of NIHL in canine populations.