{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T14:17:08Z","timestamp":1782137828657,"version":"3.54.5"},"reference-count":17,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2020,3,3]],"date-time":"2020-03-03T00:00:00Z","timestamp":1583193600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2020,5]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To describe cochlear implant performance outcomes in adult patients in whom no intraoperative electrically evoked compound action potential (ECAP) responses were able to be obtained despite intracochlear electrode placement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Retrospective case review.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Academic tertiary center.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects and Methods<\/jats:title><jats:p>Patients 18 years of age and older undergoing cochlear implantation between May 2010 and September 2018 with absent ECAP measurements intraoperatively with intracochlear electrode positioning were identified. Patient performance on sentence recognition testing using the Hearing in Noise Test (HINT) and AzBio at 6 to 12\u00a0months postoperatively was compared to preimplantation scores. Additional collected data included patient demographics, etiology of hearing loss, and preoperative pure\u2010tone average (PTA) and word recognition scores (WRSs).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Intraoperative ECAP measurements were unable to be obtained in 15 cochlear implants performed on 14 patients out of 383 cochlear implant cases. Of the patients with absent ECAP measures, the mean \u00b1 SD age was 61.7 \u00b1 15.7 years. Causes of hearing loss included congenital hearing loss, meningitis, autoimmune inner ear disease, otosclerosis, presbycusis, and M\u00e9ni\u00e8re\u2019s disease. The average preoperative PTA was 103.5 \u00b1 17.0\u00a0dB. Twelve implanted ears had a WRS of 0% and 9 had a HINT score of 0% prior to surgery. The mean HINT score at 6 to 12\u00a0months postimplantation was 57.8% \u00b1 37.8% and had improved by 42.6% \u00b1 35.6% compared to the mean preimplantation HINT score (95% confidence interval, 22.0%\u201063.1%, <jats:italic>P<\/jats:italic> =. 001, paired Student <jats:italic>t<\/jats:italic> test).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>There is a wide range of cochlear implant performance in patients with absent intraoperative ECAP measures ranging from sound awareness to HINT scores of 100%.<\/jats:p><\/jats:sec>","DOI":"10.1177\/0194599820907572","type":"journal-article","created":{"date-parts":[[2020,3,3]],"date-time":"2020-03-03T04:25:41Z","timestamp":1583209541000},"page":"725-730","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Cochlear Implant Performance in Adult Patients with Absent Intraoperative Electrically Evoked Compound Action Potentials"],"prefix":"10.1002","volume":"162","author":[{"given":"Timothy","family":"Cooper","sequence":"first","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA"},{"name":"Division of Otolaryngology\u2013Head and Neck Surgery Department of Surgery University of Alberta Edmonton Alberta Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katie L.","family":"Melder","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rick","family":"Hyre","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Candace E.","family":"Hobson","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA"},{"name":"Department of Otolaryngology\u2013Head and Neck Surgery Emory University Atlanta Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew A.","family":"McCall","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barry E.","family":"Hirsch","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania 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