{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T11:12:53Z","timestamp":1782990773037,"version":"3.54.5"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T00:00:00Z","timestamp":1695945600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pediatric Anesthesia"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>In everyday pediatric anesthesia practice, clinicians frequently exchange an already inserted endotracheal tube because of a leak or resistance causing significant morbidity. We investigated the accuracy of two ultrasound measurements; the transverse cricoid diameter and epiphyseal diameter of the distal radius in the prediction of endotracheal tube size that best fits in children compared to age\u2010based formulas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Patients<\/jats:title><jats:p>One hundred children (1\u20136\u2009years) who underwent elective surgery with endotracheal tube whether cuffed (<jats:italic>n<\/jats:italic>\u2009=\u200950) or uncuffed (<jats:italic>n<\/jats:italic>\u2009=\u200950) were enrolled. The primary endpoint was the agreement between the reference tube size for which its outer diameter was selected based on transverse cricoid diameter and the final best\u2010fit\u2010ETT. The Correlation and Bland Altman agreement tests were conducted between best\u2010fit\u2010ETT outer diameter and ultrasound\u2010measured outer diameter, and between best\u2010fit\u2010ETT inner diameter and inner diameter calculated by age\u2010based formulas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The agreement rate between transverse cricoid diameter\u2010based endotracheal tube size and best\u2010fit\u2010ETT size was 88% in cuffed group compared to 90% in uncuffed group. A significant positive correlation was reported between the outer diameter of best\u2010fit\u2010ETT and the outer diameter measured by the two ultrasound methods. A lower degree of positive correlation was reported between the inner diameter of best\u2010fit\u2010ETT, and the inner diameter calculated by age\u2010based formulas. Bland Altman's analysis showed agreement between best\u2010fit\u2010ETT outer diameter and epiphyseal diameter of the distal radius in both groups and with transverse cricoid diameter in the cuffed group, with no agreement with age\u2010based formulas in either group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Both transverse cricoid diameter and epiphyseal diameter of the distal radius are reliable predictors of the size of best\u2010fit\u2010ETT pediatric endotracheal tube compared to age\u2010based formulas. To save time and effort, we recommend the US measurement of the epiphyseal diameter of distal radius in the preoperative visit and documenting the predicted tube size with the preoperative assessments.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pan.14761","type":"journal-article","created":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T09:35:18Z","timestamp":1695980118000},"page":"68-78","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The accuracy of the ultrasound measured transverse cricoid diameter and the epiphyseal transverse diameter of the distal radius in predicting the pediatric endotracheal tube size"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7876-5829","authenticated-orcid":false,"given":"Hala Saad","family":"Abdel\u2010Ghaffar","sequence":"first","affiliation":[{"name":"Anesthesia and Intensive Care Department, Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omnia Hussein","family":"Thabet","sequence":"additional","affiliation":[{"name":"Anesthesia and Intensive Care Department, Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yara Hamdy","family":"Abbas","sequence":"additional","affiliation":[{"name":"Anesthesia and Intensive Care Department, Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5719-8829","authenticated-orcid":false,"given":"Noha Yahia Mohammd","family":"El\u2010hagagy","sequence":"additional","affiliation":[{"name":"Anesthesia and Intensive Care Department, Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6173-5973","authenticated-orcid":false,"given":"Abualauon Mohamed","family":"Abedalmohsen","sequence":"additional","affiliation":[{"name":"Anesthesia and Intensive Care Department, Faculty of Medicine Assiut University  Assiut Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,9,29]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bja.2018.04.013"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/pan.13772"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00000542-199703000-00015"},{"key":"e_1_2_10_5_1","first-page":"269","volume-title":"Smith's Anesth Infants Child","author":"Motoyama 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