title: Difficulty Inserting Cuffed Endotracheal Tubes in a Child: A Case Report.
abstract: We experienced difficulty inserting cuffed inner diameter (ID) 4.5- and 5.0-mm endotracheal tubes (ETTs) in a 5-year-old boy. Postoperative ultrasound investigations showed that the internal transverse width of the cricoid cartilage was 8.0 mm. The maximum outer diameter (OD) of the deflated cuff portion of the cuffed ID 4.5- and 5.0-mm ETTs was 8.5 and 9.6 mm, respectively. The OD of an uncuffed ID 5.5-mm ETT was 7.6 mm; this tube passed the cricoid cartilage. Hence, the transverse width of the cricoid cartilage and ETT diameter including cuff folds should be considered when selecting cuffed ETTs.
authors.affiliation: From the Department of Anesthesia, Japan Community Health Care Organization, Kyushu Hospital, Kitakyushu, Fukuoka, Japan.
authors.forename: Keiko
authors.initials: K
authors.lastname: Imai
authors.forename: Taku
authors.initials: T
authors.lastname: Doi
authors.forename: Kenji
authors.initials: K
authors.lastname: Kayashima
mesh_terms: D000233:Adenoidectomy / Q000379:methods; D000732:Androstanols / Q000627:therapeutic use; D000768:Anesthesia, General / Q000379:methods*; D018685:Anesthetics, Inhalation / Q000627:therapeutic use*; D002675:Child, Preschool; D003413:Cricoid Cartilage / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation* / Q000379:methods; D008297:Male; D008738:Methyl Ethers / Q000627:therapeutic use; D008876:Middle Ear Ventilation / Q000379:methods; D003473:Neuromuscular Nondepolarizing Agents / Q000627:therapeutic use*; D009929:Organ Size; D010033:Otitis Media / Q000601:surgery; D011859:Radiography; D000077123:Rocuronium; D000077149:Sevoflurane; D014132:Trachea / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014463:Ultrasonography
chemical_list: D000732:Androstanols; D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D003473:Neuromuscular Nondepolarizing Agents; D000077149:Sevoflurane; D000077123:Rocuronium