{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T10:30:24Z","timestamp":1788517824379,"version":"build-2803163510"},"reference-count":26,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1997,6]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 The usefulness of intraoperative monitoring in cerebellopontine angle surgery should be improved by obtaining faster and stronger brainstem auditory evoked potential (BAEP) responses. A new technique of direct recording at the brainstem has been developed, which is applicable to all tumor sizes. By placing a retractor with electrodes attached to its tip at the cerebellomedullary junction, the authors have recorded BAEP amplitudes that are 10 times greater than those recorded using the conventional technique. Only small sampling numbers (64\u2013256 recordings) are required and are obtained in 5 to 15 seconds. The technique has been applied successfully in 34 patients who underwent vestibular schwannoma resections. It has also been tested in patients with intrameatal\u2014extrameatal meningiomas and in those with vascular compressive disorders; there have been no false results. The advantages of this new technique are: 1) identification of BAEP components is easier and faster; 2) reliable BAEP responses are obtained in some cases in which conventional BAEP responses are lost or severely deformed; and 3) BAEP response deterioration and improvement are recognized earlier than would occur using the conventional technique. This last advantage provides the surgeon with a useful warning at a stage of surgery at which BAEP changes are still temporary and can be reversed. This method is different from other trials of intradural BAEP recordings in three respects: its use is not limited to particular tumor sizes; there is no interference with the surgical process; and, most important, the obtained responses correlate well with those of conventional BAEP responses, probably because the recording site is in the vicinity of the anterior cochlear nucleus. In conclusion, the chances of useful monitoring feedback with adequate adaptation of the microsurgical strategy are improved considerably.<\/jats:p>","DOI":"10.3171\/jns.1997.86.6.1057","type":"journal-article","created":{"date-parts":[[2009,6,10]],"date-time":"2009-06-10T18:05:37Z","timestamp":1244657137000},"page":"1057-1062","source":"Crossref","is-referenced-by-count":36,"title":["Direct brainstem recording of auditory evoked potentials during vestibular schwannoma resection: nuclear BAEP recording"],"prefix":"10.3171","volume":"86","author":[{"given":"Cordula","family":"Matthies","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Madjid","family":"Samii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-198511000-00004"},{"key":"b2","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1177\/000348948609500105","volume":"95","author":"Cohen NL","year":"1986","journal-title":"Ann Otol Rhinol Laryngol"},{"key":"b3","doi-asserted-by":"publisher","DOI":"10.3109\/00016489309135895"},{"key":"b4","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1992.76.6.0910"},{"key":"b5","first-page":"97","volume":"12","author":"Fisher RS","year":"1995","journal-title":"J Clin Neurophysiol"},{"key":"b6","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1993.78.6.0864"},{"key":"b7","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1993.79.4.0515"},{"key":"b8","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1159\/000099569","volume":"57","author":"Landi A","year":"1991","journal-title":"Stereotact Funct Neurosurg"},{"key":"b9","first-page":"459","volume":"40","author":"Matthies C","year":"1997","journal-title":"Neurosurgery"},{"key":"b10","first-page":"1177","volume-title":"Skull Base Surgery. 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