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Olfactory-evoked potentials were recorded in 8 patients who underwent neurosurgery for resection of cerebral lesions. These patients underwent routine target-controlled propofol and sufentanil general anesthesia. Frontal, temporal, and parietal scalp subdermal electrodes were recorded ipsilaterally and contralaterally at the site of the surgery. Evoked potentials were computed if at least 70 epochs (0.5\u2013100 Hz) satisfying the artifact rejection criterion (threshold 45 \u03bcV) could be extracted from signals of electrodes.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>Contributive recordings were obtained for 5 of 8 patients (3 patients had fewer than 70 epochs with an amplitude &lt; 45 \u03bcV). Olfactory-evoked potentials showed N1 responses (mean 442.8 \u00b1 40.0 msec), most readily observed in the patient who underwent midline anterior fossa neurosurgery. No component of later latencies could be recorded consistently.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>The study confirms that olfactory-evoked potentials can be measured in response to olfactory stimuli under general anesthesia. This demonstrates the feasibility of recording olfactory function intraoperatively and opens the potential for neuromonitoring of olfactory function during neurosurgery.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2019.1.jns182731","type":"journal-article","created":{"date-parts":[[2019,4,19]],"date-time":"2019-04-19T12:53:36Z","timestamp":1555678416000},"page":"1659-1664","source":"Crossref","is-referenced-by-count":5,"title":["Intraoperative monitoring of olfactory function: a feasibility study"],"prefix":"10.3171","volume":"132","author":[{"given":"Shahan","family":"Momjian","sequence":"first","affiliation":[{"name":"Department of Neurosurgery,"},{"name":"Faculty of Medicine, University of Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R\u00e9mi","family":"Tyrand","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Geneva, Switzerland"},{"name":"Department of Neurology,"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Basile N.","family":"Landis","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Geneva, Switzerland"},{"name":"Rhinology-Olfactory Unit, Department of Otorhinolaryngology Head & Neck Surgery, Geneva University Hospitals; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colette","family":"Bo\u00ebx","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Geneva, Switzerland"},{"name":"Department of Neurology,"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Rev Neurol (Paris)","first-page":"451","article-title":"[Description and analysis of olfactory disorders after head trauma. 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