{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T06:59:44Z","timestamp":1780901984769,"version":"3.54.1"},"reference-count":15,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,6,7]],"date-time":"2026-06-07T00:00:00Z","timestamp":1780790400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Dawgmuffs"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Veterinary Sciences"],"abstract":"<jats:p>Noise-induced hearing loss (NIHL) has been reported in both people and canines and can raise the hearing threshold. In people, hearing protection devices (HPD\u2019s) are utilized to reduce the risk of hearing loss. In canines, HPD\u2019s have been developed, but none, to our knowledge, have been objectively tested to determine their ability to reduce incoming sound. We hypothesize that a canine hearing protection device (CHPD) will effectively protect hearing in canines by increasing hearing thresholds. Twenty-one apparently healthy canines between the ages of 4\u201369 months were anesthetized for routine surgical sterilization. Hearing thresholds were established using over-the-ear headphones (OTEH); starting at 70 dB nHL, sound was gradually diminished by 10 dB nHL until wave V was inapparent as recorded by BAER. Hearing thresholds were then established in the same patients while wearing CHPD. Median hearing thresholds for canines without the CHPD were 40 dB (range 5\u201370 dB) in the left ear and 50 dB (range 20\u201370 dB) in the right ear. Median hearing thresholds for canines with the CHPD were &gt;70 dB AU (range 65\u201370 dB). Twenty out of twenty-one canines had hearing thresholds &gt; 70 dB with the CHPD in place. The CHPD objectively increased the hearing threshold in canines, blocking sound of less than or equal to 70 dB nHL. This device could be utilized to lessen the likelihood of NIHL in canines.<\/jats:p>","DOI":"10.3390\/vetsci13060564","type":"journal-article","created":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T05:43:46Z","timestamp":1780897426000},"page":"564","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Objective Assessment of a Hearing Protection Device for Canines"],"prefix":"10.3390","volume":"13","author":[{"given":"Joshuah B.","family":"Klutzke","sequence":"first","affiliation":[{"name":"College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George E.","family":"Moore","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emily S.","family":"Curry","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie A.","family":"Thomovsky","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Natarajan, N., Batts, S., and Stankovic, K.M. (2023). Noise-Induced Hearing Loss. J. Clin. Med., 12.","DOI":"10.3390\/jcm12062347"},{"key":"ref_2","unstructured":"Occupational Safety and Health Administration (OSHA) (1974). Occupational noise exposure: Proposed requirements and procedures. Fed. Regist, 39, 37773\u201337784."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"100362","DOI":"10.1016\/j.tcam.2019.100362","article-title":"Noise-Induced Hearing Loss in 3 Working Dogs","volume":"37","author":"Schneider","year":"2019","journal-title":"Top. Companion Anim. Med."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/0031-9384(88)90192-8","article-title":"The relationship between genetic deafness and fear-related behaviors in nervous pointer dogs","volume":"43","author":"Klein","year":"1988","journal-title":"Physiol. Behav."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1708","DOI":"10.1111\/jvim.16510","article-title":"Relationship between hearing, cognitive function, and quality of life in aging companion dogs","volume":"36","author":"Fefer","year":"2022","journal-title":"J. Vet. Intern Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"966","DOI":"10.2460\/ajvr.1985.46.04.966","article-title":"Brain stem auditory-evoked response of the nonanesthetized dog","volume":"46","author":"Marshall","year":"1985","journal-title":"Am. J. Vet. Res."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1241","DOI":"10.1016\/j.cvsm.2012.08.012","article-title":"Electrodiagnostic evaluation of auditory function in the dog","volume":"42","author":"Scheifele","year":"2012","journal-title":"Vet. Clin. North Am. Small Anim. Pract."},{"key":"ref_8","unstructured":"Cuddon, P.A. (2000). Brainstem auditory evoked responses. Electrodiagnosis in Veterinary Neurology: Electromyography, Nerve Conduction Studies, and Evoked Responses, Veterinary Specialists of Northern Colorado."},{"key":"ref_9","unstructured":"U.S. Department of Labor, and Occupational Safety and Health Administration (2025, October 31). Hearing Conservation. OSHA 3074. Revised 2002, Available online: https:\/\/www.osha.gov\/sites\/default\/files\/publications\/osha3074.pdf."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"482","DOI":"10.2460\/ajvr.73.4.482","article-title":"Effect of kennel noise on hearing in dogs","volume":"73","author":"Scheifele","year":"2012","journal-title":"Am. J. Vet. Res."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"e3659","DOI":"10.7717\/peerj.3659","article-title":"Effect of environmental noise and music on dexmedetomidine-induced sedation in dogs","volume":"5","author":"Albright","year":"2017","journal-title":"PeerJ"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Park, J.W., Bae, S.I., Ryu, J., Chung, S.H., and Do, S.H. (2023). Effects of Earmuffs and Eye Masks on Propofol Sedation during Spinal Anesthesia for Orthopedic Surgery: A Randomized Controlled Trial. J. Clin. Med., 12.","DOI":"10.3390\/jcm12030899"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"e79","DOI":"10.1002\/oto2.79","article-title":"Acoustic Noise Levels in High-field Magnetic Resonance Imaging Scanners","volume":"7","author":"Akbar","year":"2023","journal-title":"OTO Open"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Schroers, M., Zablotski, Y., and Meyer-Lindenberg, A. (2024). Investigation of stress in dogs during an MRI examination in response to hearing protection. PLoS ONE, 19.","DOI":"10.1371\/journal.pone.0312166"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"123","DOI":"10.17555\/jvc.2020.06.37.3.123","article-title":"A Comparative Study of Insert Earphones and Circumaural Earphones in the Brainstem Auditory-Evoked Response Test of Dogs","volume":"37","author":"Kim","year":"2020","journal-title":"J. Vet. Clin."}],"container-title":["Veterinary Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2306-7381\/13\/6\/564\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T06:31:55Z","timestamp":1780900315000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2306-7381\/13\/6\/564"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,7]]},"references-count":15,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2026,6]]}},"alternative-id":["vetsci13060564"],"URL":"https:\/\/doi.org\/10.3390\/vetsci13060564","relation":{},"ISSN":["2306-7381"],"issn-type":[{"value":"2306-7381","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,7]]}}}