{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T12:08:12Z","timestamp":1791374892291,"version":"4.3.1"},"reference-count":40,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,11,1]]},"abstract":"<jats:sec>\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>Advancements in microsurgical technique and technology continue to improve outcomes in patients with skull base tumor. The primary cranial nerve eight monitoring systems used in hearing preservation surgery for vestibular schwannomas (VSs) are direct cranial nerve eight monitoring (DCNEM) and auditory brainstem response (ABR), although current guidelines are unable to definitively recommend one over the other due to limited literature on the topic. Thus, further research is needed to determine the utility of DCNEM and ABR. The authors performed a retrospective cohort study and created an interactive model that compares hearing preservation outcomes based on tumor size in patients receiving ABR+DCNEM and ABR-only monitoring.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>Twenty-eight patients received ABR+DCNEM and 72 patients received ABR-only monitoring during VS hearing preservation surgery at a single tertiary academic medical center between January 2008 and November 2022. Inclusion criteria consisted of adult patients with a preoperative American Academy of Otolaryngology\u2013Head and Neck Surgery (AAO-HNS) hearing classification of A or B. Tumor size was measured as the maximal medial to lateral length, including the internal auditory canal component.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Overall hearing preservation (word recognition score [WRS] &gt; 0%) was achieved in 31 patients with ABR-only monitoring (43.1%) and in 18 patients with ABR+DCNEM (64.3%). Serviceable hearing preservation (AAO-HNS class A or B) was attained in 19 patients with ABR-only monitoring (26.4%) and in 11 patients with ABR+DCNEM (39.3%). There was no difference in overall hearing preservation between the two groups (p = 0.13). Change in tumor size was not associated with the odds of serviceable hearing preservation for the ABR-only group (p = 0.89); however, for ABR+DCNEM, there was some indication of an interaction between tumor size and the association of ABR+DCNEM versus ABR-only monitoring, with the odds of serviceable hearing preservation at p = 0.089. Furthermore, with ABR+DCNEM, every 0.5-cm increase in tumor size was associated with a decreased odds of serviceable hearing preservation on multivariable analysis (p = 0.05). For both overall and serviceable hearing preservation, a worse preoperative AAO-HNS classification was associated with a decreased odds of preservation (OR 0.43, 95% CI 0.19\u20130.97, p = 0.042; OR 0.17, 95% CI 0.053\u20130.55, p = 0.0031, respectively).<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CONCLUSIONS<\/jats:title>\n<jats:p>The result of this interactive model study proposes that there may be a higher chance of hearing preservation when using ABR+DCNEM rather than ABR alone for smaller tumors, with that relationship reversing as tumor size increases.<\/jats:p>\n<\/jats:sec>","DOI":"10.3171\/2024.4.jns221868","type":"journal-article","created":{"date-parts":[[2024,6,29]],"date-time":"2024-06-29T01:29:30Z","timestamp":1719624570000},"page":"1314-1323","source":"Crossref","is-referenced-by-count":4,"title":["Hearing preservation outcomes using direct cranial nerve eight and auditory brainstem response neuromonitoring in the resection of vestibular schwannomas"],"prefix":"10.3171","volume":"141","author":[{"given":"Dayna C.","family":"Sloane","sequence":"first","affiliation":[{"name":"Departments of Neurological Surgery,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Nuru","sequence":"additional","affiliation":[{"name":"Department of Neurology, SUNY Downstate University Health Sciences University, Brooklyn, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathan C.","family":"Pecoraro","sequence":"additional","affiliation":[{"name":"Departments of Neurological Surgery,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rob","family":"Hand","sequence":"additional","affiliation":[{"name":"Biostatistics Core, Clinical Research Office, Loyola University Medical Center, Maywood, Illinois;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oleksandr","family":"Strelko","sequence":"additional","affiliation":[{"name":"Departments of Neurological Surgery,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William Y.","family":"Shin","sequence":"additional","affiliation":[{"name":"Departments of Neurological Surgery,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adriana","family":"Russ","sequence":"additional","affiliation":[{"name":"Audiology, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca","family":"Rajasekhar","sequence":"additional","affiliation":[{"name":"Audiology, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ignacio","family":"Jusue-Torres","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Mayo Clinic Health System, Eau Claire, Wisconsin;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Constantinos","family":"Hadjipanayis","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John P.","family":"Leonetti","sequence":"additional","affiliation":[{"name":"Otolaryngology, Loyola University Stritch School of Medicine, Maywood, Illinois;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Douglas E.","family":"Anderson","sequence":"additional","affiliation":[{"name":"Departments of Neurological Surgery,"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"1","key":"b1","series-title":"Am J Epidemiol","first-page":"58","article-title":"Loud noise exposure and acoustic neuroma","volume":"180","author":"Fisher JL","year":"2014","unstructured":"Fisher JL, Pettersson D, Palmisano S. 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