{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T21:30:15Z","timestamp":1790890215733,"version":"4.1.0"},"reference-count":21,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2020,6,30]],"date-time":"2020-06-30T00:00:00Z","timestamp":1593475200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100007137","name":"texas children\u2019s hospital","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007137","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To compare measurements of the pediatric subglottis obtained by surgeon\u2010performed ultrasound and endoscopy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Prospective observational comparison\u2010of\u2010methods study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Tertiary care pediatric hospital.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects and Methods<\/jats:title><jats:p>Thirty\u2010one patients who underwent direct laryngoscopy from May 2017 to July 2018 were recruited. Transcervical ultrasound was used to visualize the vocal folds, subglottis, and cervical trachea. The anterior\u2010posterior (AP) and transverse (TV) diameter of the subglottic space were measured endoscopically and via ultrasound by 2\u00a0independent evaluators. Measurements were compared for correlation, bias, and agreement. A clinically acceptable bias for subglottic diameter was assumed to be 0.5\u00a0mm or less.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The median age of enrolled patients was 2.6 years (range, 4\u00a0months\u201313.3 years). Endoscopic subglottic AP and TV measurements ranged from 3.33\u00a0mm to 14.81\u00a0mm and from 4.44\u00a0mm to 11.65\u00a0mm, respectively, while ultrasonographic AP and TV measurements ranged from 4.57\u00a0mm to 9.85\u00a0mm and from 3.77\u00a0mm to 8.96\u00a0mm. Pearson coefficient showed strong a correlation for both endoscopic and ultrasound AP (<jats:italic>R<\/jats:italic> = 0.8081, <jats:italic>P<\/jats:italic> &lt;. 0001) and TV (<jats:italic>R<\/jats:italic> = 0.8796, <jats:italic>P<\/jats:italic> &lt;. 001) measurements of the subglottis. Bland\u2010Altman plots revealed a bias (average discrepancy) for AP measurements of 0.22\u00a0mm and 0.11\u00a0mm for TV measurements.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Endoscopic and ultrasonography measurements of the pediatric subglottic airway were strongly correlated. The discrepancy between AP and TV measurements was less than 0.5\u00a0mm. Ultrasound of the subglottis may be an alternative to endoscopic assessment of the airway for measurement of the subglottic airway in children in select cases.<\/jats:p><\/jats:sec>","DOI":"10.1177\/0194599820936249","type":"journal-article","created":{"date-parts":[[2020,6,30]],"date-time":"2020-06-30T04:11:22Z","timestamp":1593490282000},"page":"1264-1269","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Comparison of Endoscopic and Ultrasonographic Measurements of the Subglottic Airway in Children"],"prefix":"10.1002","volume":"163","author":[{"given":"Elton M.","family":"Lambert","sequence":"first","affiliation":[{"name":"Department of Otolaryngology Baylor College of Medicine Texas Children\u2019s Hospital Houston Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huy D.","family":"Tran","sequence":"additional","affiliation":[{"name":"Baylor College of Medicine Texas Children\u2019s Hospital Houston Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julina","family":"Ongkasuwan","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology Baylor College of Medicine Texas Children\u2019s Hospital Houston Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,6,30]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.2310\/7070.2005.03080"},{"issue":"6","key":"e_1_2_9_3_1","first-page":"419","article-title":"Subglottic hemangioma: a practical approach","volume":"21","author":"Riding K","year":"1992","journal-title":"J 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