{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T21:55:25Z","timestamp":1789077325101,"version":"build-2803163510"},"reference-count":30,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[2011,5,1]],"date-time":"2011-05-01T00:00:00Z","timestamp":1304208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2011,5,1]],"date-time":"2011-05-01T00:00:00Z","timestamp":1304208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2017,12,4]],"date-time":"2017-12-04T00:00:00Z","timestamp":1512345600000},"content-version":"vor","delay-in-days":2409,"URL":"http:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":["bjanaesthesia.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["British Journal of Anaesthesia"],"published-print":{"date-parts":[[2011,5]]},"DOI":"10.1093\/bja\/aer024","type":"journal-article","created":{"date-parts":[[2011,2,25]],"date-time":"2011-02-25T20:54:23Z","timestamp":1298667263000},"page":"743-748","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":127,"title":["Neck circumference to thyromental distance ratio: a new predictor of difficult intubation in obese patients"],"prefix":"10.1016","volume":"106","author":[{"given":"W.H.","family":"Kim","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.J.","family":"Ahn","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.J.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.S.","family":"Shin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.S.","family":"Ko","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.J.","family":"Choi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.A.","family":"Ryu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1093\/bja\/aer024_bib1","doi-asserted-by":"crossref","first-page":"877","DOI":"10.1093\/bja\/59.7.877","article-title":"Pitfalls in anaesthetic practice","volume":"59","author":"Utting","year":"1987","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib2","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1097\/ALN.0b013e318194cac8","article-title":"High body mass index is a weak predictor for difficult and failed tracheal intubation","volume":"110","author":"Lundstrom","year":"2009","journal-title":"Anesthesiology"},{"key":"10.1093\/bja\/aer024_bib3","doi-asserted-by":"crossref","first-page":"1182","DOI":"10.1213\/ane.0b013e3181b12a0c","article-title":"Obstructive sleep apnea is not a risk factor for difficult intubation in morbidly obese patients","volume":"109","author":"Neligan","year":"2009","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib4","doi-asserted-by":"crossref","first-page":"264","DOI":"10.1016\/j.jclinane.2008.08.021","article-title":"Predicting difficult airways using the intubation difficulty scale: a study comparing obese and non-obese patients","volume":"21","author":"Lavi","year":"2009","journal-title":"J Clin Anesth"},{"key":"10.1093\/bja\/aer024_bib5","doi-asserted-by":"crossref","first-page":"1132","DOI":"10.1213\/ane.0b013e3181679659","article-title":"The importance of increased neck circumference to intubation difficulties in obese patients","volume":"106","author":"Gonzalez","year":"2008","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib6","doi-asserted-by":"crossref","first-page":"595","DOI":"10.1213\/01.ANE.0000072547.75928.B0","article-title":"Difficult tracheal intubation is more common in obese than in lean patients","volume":"97","author":"Juvin","year":"2003","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib7","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1007\/BF03017853","article-title":"Increased body mass index per se is not a predictor of difficult laryngoscopy","volume":"50","author":"Ezri","year":"2003","journal-title":"Can J Anaesth"},{"key":"10.1093\/bja\/aer024_bib8","doi-asserted-by":"crossref","first-page":"732","DOI":"10.1097\/00000539-200203000-00047","article-title":"Morbid obesity and tracheal intubation","volume":"94","author":"Brodsky","year":"2002","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib9","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1093\/bja\/85.1.91","article-title":"Obesity in anaesthesia and intensive care","volume":"85","author":"Adams","year":"2000","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib10","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1097\/00003643-199805000-00015","article-title":"Value of oropharyngeal Mallampati classification in predicting difficult laryngoscopy among obese patients","volume":"15","author":"Voyagis","year":"1998","journal-title":"Eur J Anaesthesiol"},{"key":"10.1093\/bja\/aer024_bib11","doi-asserted-by":"crossref","first-page":"811","DOI":"10.1093\/bja\/53.8.811","article-title":"Anaesthesia for the morbidly obese: experience with 110 patients","volume":"53","author":"Fox","year":"1981","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib12","doi-asserted-by":"crossref","first-page":"606","DOI":"10.1093\/bja\/80.5.606","article-title":"Relationship between difficult tracheal intubation and obstructive sleep apnoea","volume":"80","author":"Hiremath","year":"1998","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib13","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1093\/bja\/61.2.211","article-title":"Predicting difficult intubation","volume":"61","author":"Wilson","year":"1988","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib14","doi-asserted-by":"crossref","first-page":"1290","DOI":"10.1097\/00000542-199712000-00005","article-title":"The intubation difficulty scale (IDS): proposal and evaluation of a new score characterizing the complexity of endotracheal intubation","volume":"87","author":"Adnet","year":"1997","journal-title":"Anesthesiology"},{"key":"10.1093\/bja\/aer024_bib15","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/S0140-6736(03)15268-3","article-title":"Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies","volume":"363","author":"WHO","year":"2004","journal-title":"Lancet"},{"key":"10.1093\/bja\/aer024_bib16","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1007\/BF03011357","article-title":"A clinical sign to predict difficult tracheal intubation: a prospective study","volume":"32","author":"Mallampati","year":"1985","journal-title":"Can Anaesth Soc J"},{"key":"10.1093\/bja\/aer024_bib17","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1016\/S0140-6736(61)92485-0","article-title":"Cricoid pressure to control regurgitation of stomach contents during induction of anaesthesia","volume":"2","author":"Sellick","year":"1961","journal-title":"Lancet"},{"key":"10.1093\/bja\/aer024_bib18","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.1111\/j.1365-2044.1984.tb08932.x","article-title":"Difficult tracheal intubation in obstetrics","volume":"39","author":"Cormack","year":"1984","journal-title":"Anaesthesia"},{"key":"10.1093\/bja\/aer024_bib19","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1093\/bja\/aeq136","article-title":"Cormack\u2013Lehane classification revisited","volume":"105","author":"Krage","year":"2010","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib20","doi-asserted-by":"crossref","first-page":"836","DOI":"10.1097\/00000542-200110000-00009","article-title":"Randomized study comparing the sniffing position with simple head extension for laryngoscopic view in elective surgery patients","volume":"95","author":"Adent","year":"2001","journal-title":"Anesthesiology"},{"key":"10.1093\/bja\/aer024_bib21","doi-asserted-by":"crossref","first-page":"840","DOI":"10.1111\/j.1365-2044.1983.tb12249.x","article-title":"Anaesthesia in the morbidly obese","volume":"38","author":"Buckley","year":"1983","journal-title":"Anaesthesia"},{"key":"10.1093\/bja\/aer024_bib22","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1097\/00000542-200508000-00027","article-title":"Predicting difficult intubation in apparently normal patients: a meta-analysis of bed-side screening test performance","volume":"103","author":"Shiga","year":"2005","journal-title":"Anesthesiology"},{"key":"10.1093\/bja\/aer024_bib23","doi-asserted-by":"crossref","first-page":"1867","DOI":"10.1213\/01.ane.0000217211.12232.55","article-title":"A systemic review (meta-analysis) of the accuracy of the Mallampati tests to predict the difficult airway","volume":"102","author":"Lee","year":"2006","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib24","doi-asserted-by":"crossref","first-page":"906","DOI":"10.1093\/bja\/aem297","article-title":"Predictive value of the El-Ganzouri multivariate risk index for difficult tracheal intubation: a comparison of Glidescope\u00ae videolaryngoscopy and conventional Macintosh laryngoscopy","volume":"99","author":"Cortellazzi","year":"2007","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib25","first-page":"1197","article-title":"Preoperative airway assessment: predictive value of a multivariate risk index","volume":"82","author":"El-Ganzouri","year":"1996","journal-title":"Anesth Analg"},{"key":"10.1093\/bja\/aer024_bib26","doi-asserted-by":"crossref","first-page":"613","DOI":"10.1183\/09031936.93.02070613","article-title":"Sites and sizes of fat deposits around the pharynx in obese patients with obstructive sleep apnoea and weight matched controls","volume":"2","author":"Horner","year":"1989","journal-title":"Eur Respir J"},{"key":"10.1093\/bja\/aer024_bib27","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1046\/j.1365-2044.2003.03412.x","article-title":"Prediction of difficult laryngoscopy in obese patients by ultrasound quantification of anterior neck soft tissue","volume":"58","author":"Ezri","year":"2003","journal-title":"Anaesthesia"},{"key":"10.1093\/bja\/aer024_bib28","first-page":"38","article-title":"Clinical evaluation for predicting difficult laryngoscopy in obstetric patients","volume":"25","author":"Singh","year":"2009","journal-title":"J Anaesth Clin Pharmacol"},{"key":"10.1093\/bja\/aer024_bib29","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1093\/bja\/aep384","article-title":"Difficult tracheal intubation","volume":"104","author":"Combes","year":"2010","journal-title":"Br J Anaesth"},{"key":"10.1093\/bja\/aer024_bib30","doi-asserted-by":"crossref","first-page":"1171","DOI":"10.1381\/0960892042386869","article-title":"Laryngoscopy and morbid obesity: a comparison of the \u2018Sniff\u2019 and \u2018Ramped\u2019 positions","volume":"14","author":"Collins","year":"2004","journal-title":"Obes Surg"}],"container-title":["British Journal of Anaesthesia"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0007091217332270?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0007091217332270?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/academic.oup.com\/bja\/article-pdf\/106\/5\/743\/18252890\/aer024.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,13]],"date-time":"2025-09-13T18:42:59Z","timestamp":1757788979000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0007091217332270"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,5]]},"references-count":30,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2011,5]]}},"alternative-id":["S0007091217332270"],"URL":"https:\/\/doi.org\/10.1093\/bja\/aer024","relation":{"has-review":[{"id-type":"doi","id":"10.3410\/f.10277956.11086054","asserted-by":"object"}]},"ISSN":["0007-0912"],"issn-type":[{"value":"0007-0912","type":"print"}],"subject":[],"published":{"date-parts":[[2011,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Neck circumference to thyromental distance ratio: a new predictor of difficult intubation in obese patients","name":"articletitle","label":"Article Title"},{"value":"British Journal of Anaesthesia","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1093\/bja\/aer024","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2011 The Author(s). Published by Elsevier Ltd. All rights reserved.","name":"copyright","label":"Copyright"}]}}