{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T21:55:24Z","timestamp":1789077324570,"version":"build-2803163510"},"reference-count":25,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T00:00:00Z","timestamp":1583107200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>The optimal head position for GlideScope facilitated nasotracheal intubation has not yet been determined. We compared the neutral and sniffing positions to establish the degree of intubation difficulty. A total of 88 ASA I-II patients requiring nasotracheal intubation for elective dental surgery with normal airways were divided into two groups according to head position, neutral position (group N), and sniffing position (group S). The primary outcome was the degree of intubation difficulty according to the Intubation Difficulty Scale (IDS): Easy (IDS = 0), mildly difficult (IDS = 1 to 4), and moderately to severely difficult (IDS \u2265 5). Eighty-seven patients completed the study and their data were analyzed. The degree of intubation difficulty was significantly different between the two groups (p = 0.004). The frequency of difficult intubation (IDS &gt; 0) was 12 (27.9%) in group N and 28 (63.6%) in group S (difference in proportion, 35.7%; 95% confidence interval [CI], 14.8 to 52.6%; p = 0.001). The neutral position facilitates nasotracheal intubation with GlideScope by aligning the nasotracheal tube and the glottis inlet more accurately than the sniffing position.<\/jats:p>","DOI":"10.3390\/jcm9030671","type":"journal-article","created":{"date-parts":[[2020,3,3]],"date-time":"2020-03-03T13:06:23Z","timestamp":1583240783000},"page":"671","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Neutral Position Facilitates Nasotracheal Intubation with a GlideScope Video Laryngoscope: A Randomized Controlled Trial"],"prefix":"10.3390","volume":"9","author":[{"given":"RyungA","family":"Kang","sequence":"first","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5396-1030","authenticated-orcid":false,"given":"Ji Seon","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justin Sangwook","family":"Ko","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaemyung","family":"Ahn","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Samsung Medical Center, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mi Sook","family":"Gwak","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soo Joo","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji Yun","family":"Hwang","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tae Soo","family":"Hahm","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,3,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1093\/bja\/aei041","article-title":"The GlideScope video laryngoscope: Randomized clinical trial in 200 patients","volume":"94","author":"Sun","year":"2005","journal-title":"Br. 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