{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T03:18:13Z","timestamp":1780543093942,"version":"3.54.1"},"reference-count":20,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2014,1,29]],"date-time":"2014-01-29T00:00:00Z","timestamp":1390953600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Laryngoscope"],"published-print":{"date-parts":[[2014,8]]},"abstract":"<jats:sec><jats:title>Objectives\/Hypothesis<\/jats:title><jats:p>Hearing loss can be associated with a decrease in cerebrospinal fluid (CSF) pressure because changes in CSF pressure induce changes in perilymph pressure. Hearing loss after neurosurgical procedures have been reported, but clinical information on hearing loss after the placement of ventriculoperitoneal (VP) shunts, the most commonly used CSF shunt for hydrocephalus patients, is limited. This study is aimed to show the relationship between VP shunt and hearing loss.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Prospective study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Pure tone threshold and electrocochleography were preoperatively performed in nine patients (18 ears) undergoing elective VP shunt placement. Five\u2010day and 1\u2010month post\u2010shunt placement hearing thresholds were compared with baseline data. A correlation analysis was conducted between the threshold and summating potential\/action potential (SP\/AP) ratio changes at 5 days and 1 month after shunt placement. Cochlear aqueduct dimensions measured by high\u2010resolution CT were compared between ears with and without hearing loss.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>About 40% of subject ears showed hearing loss with a threshold elevation of at least 15 dB in one or more frequencies. After VP shunt placement, the mean threshold of all ears showed a significant increase in most frequencies and the pure tone average. The change in the SP\/AP ratios was significantly correlated with the change in the pure tone average at both 5 days and 1 month after shunt placement. Cochlear aqueduct dimensions were not correlated with hearing loss occurrence.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Hearing thresholds may increase following VP shunt placement, possibly due to secondary endolymphatic hydrops.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>4. <jats:italic>Laryngoscope<\/jats:italic>, 124:1923\u20131927, 2014<\/jats:p><\/jats:sec>","DOI":"10.1002\/lary.24553","type":"journal-article","created":{"date-parts":[[2013,12,9]],"date-time":"2013-12-09T08:34:50Z","timestamp":1386578090000},"page":"1923-1927","source":"Crossref","is-referenced-by-count":13,"title":["Hearing loss following ventriculoperitoneal shunt in communicating hydrocephalus patients: A pilot study"],"prefix":"10.1002","volume":"124","author":[{"given":"Hyun Woo","family":"Lim","sequence":"first","affiliation":[{"name":"Department of Otolaryngology Gangneung Asan Hospital, University of Ulsan College of Medicine Gangneung"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Byoung Soo","family":"Shim","sequence":"additional","affiliation":[{"name":"Departments of Otorhinolaryngology\u2013Head and Neck Surgery Asan Medical Center, University of Ulsan College of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chan Joo","family":"Yang","sequence":"additional","affiliation":[{"name":"Departments of Otorhinolaryngology\u2013Head and Neck Surgery Asan Medical Center, University of Ulsan College of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeong Hoon","family":"Kim","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery Asan Medical Center, University of Ulsan College of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young Hyun","family":"Cho","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery Asan Medical Center, University of Ulsan College of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang\u2010Sun","family":"Cho","sequence":"additional","affiliation":[{"name":"Departments of Otorhinolaryngology (Y.\u2010S.C.) Sungkyunkwan University School of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Doo\u2010Sik","family":"Kong","sequence":"additional","affiliation":[{"name":"Neurosurgery (D.\u2010S.K.) Samsung Medical Center, Sungkyunkwan University, School of Medicine Seoul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ja\u2010Won","family":"Koo","sequence":"additional","affiliation":[{"name":"Departments of Otorhinolaryngology (J.\u2010W.K.) Seoul National University Bundang Hospital Bundang Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jung\u2010Ho","family":"Han","sequence":"additional","affiliation":[{"name":"Neurosurgery (J.\u2010H.H.) 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