{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T01:49:07Z","timestamp":1788400147370,"version":"build-2803163510"},"reference-count":27,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\nBackground: <\/jats:title>\nPermanent hearing loss after posterior fossa microvascular decompression (MVD) for typical trigeminal neuralgia (TTN) is one of the possible complications of this procedure. Intraoperative brainstem auditory evoked potentials (BAEPs) are used for monitoring the function of cochlear nerve during cerebellopontine angle (CPA) microsurgery. Level-specific (LS)-CE-Chirp\u00ae BAEPs are the most recent evolution of classical click BAEP, performed both in clinical studies and during intraoperative neuromonitoring (IONM) of acoustic pathways during several neurosurgical procedures.<\/jats:p>\n<\/jats:sec>\n\nMethods: <\/jats:title>\nSince February 2016, we routinely use LS-CE-Chirp\u00ae BAEPs for monitoring the function of cochlear nerve during CPA surgery, including MVD for trigeminal neuralgia. From September 2011 to December 2018, 71 MVDs for TTN were performed in our department, 47 without IONM of acoustic pathways (Group A), and, from February 2016, 24 with LS-CE-Chirp BAEP (Group B).<\/jats:p>\n<\/jats:sec>\n\nResults: <\/jats:title>\nTwo patients of Group A developed a permanent ipsilateral anacusia after MVD. In Group B, we did not observe any permanent acoustic deficit after surgery. In one case of Group B, during arachnoid dissection, intraoperative LS-CE-Chirp BAEP showed a temporary lag of V wave, resolved in 5 min after application of intracisternal diluted papaverine (0.3% solution without excipients).<\/jats:p>\n<\/jats:sec>\n\nConclusion: <\/jats:title>\nMVD is widely considered a definitive surgical procedure in the management of TTN. Even though posterior fossa MVD is a safe procedure, serious complications might occur. In particular, the use of IONM of acoustic pathways during MVD for TTN might contribute to prevention of postoperative hearing loss.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_702_2020","type":"journal-article","created":{"date-parts":[[2020,11,11]],"date-time":"2020-11-11T06:19:22Z","timestamp":1605075562000},"page":"388","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Microvascular decompression for typical trigeminal neuralgia: Personal experience with intraoperative neuromonitoring with level-specific-CE-Chirp\u00ae brainstem auditory evoked potentials in preventing possible hearing loss"],"prefix":"10.25259","volume":"11","author":[{"given":"Luciano","family":"Mastronardi","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, San Filippo Neri Hospital\/ASL Roma 1, Rome, Italy,"},{"name":"Department of Neurosurgery, The State Education Institution of Higher Professional Training, The First Sechenov Moscow State Medical University under Ministry of Health, Russian Federation."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Franco","family":"Caputi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, San Filippo Neri Hospital\/ASL Roma 1, Rome, Italy,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guglielmo","family":"Cacciotti","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, San Filippo Neri Hospital\/ASL Roma 1, Rome, Italy,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlo Giacobbo","family":"Scavo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, San Filippo Neri Hospital\/ASL Roma 1, Rome, Italy,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raffaelino","family":"Roperto","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, San Filippo Neri Hospital\/ASL Roma 1, Rome, 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