{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T03:15:13Z","timestamp":1793330113258,"version":"4.5.0"},"reference-count":11,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T00:00:00Z","timestamp":1770249600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T00:00:00Z","timestamp":1773014400000},"content-version":"vor","delay-in-days":32,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["JA Clin Rep"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Tracheal agenesis is an exceptionally rare and typically lethal congenital airway anomaly presenting with failed intubation. We report a case of unrecognized tracheal agenesis in which supraglottic airway-assisted ventilation enabled concurrent fiberoptic endoscopic evaluation during neonatal resuscitation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation<\/jats:title>\n                    <jats:p>\n                      A preterm male neonate born at 31 weeks and 1\u00a0day of gestation with polyhydramnios and suspected duodenal atresia developed severe respiratory failure immediately after delivery. Repeated attempts at tracheal intubation were unsuccessful despite vocal cord\u2013like structures being seen. Placement of a size 0.5 supraglottic airway (Air-Q\n                      <jats:sup>\u00ae<\/jats:sup>\n                      ) resulted in transient partial ventilation with intermittent colorimetric carbon dioxide detection, permitting fiberoptic endoscopic evaluation. Endoscopy demonstrated a blind-ending subglottic pouch and a distal tracheoesophageal fistula, strongly suggesting tracheal agenesis; computed tomography subsequently confirmed the diagnosis of Floyd type II tracheal agenesis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Early supraglottic airway-assisted endoscopic evaluation may facilitate rapid recognition of tracheal agenesis during neonatal resuscitation and support timely, multidisciplinary decision-making after failed intubation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s40981-026-00852-w","type":"journal-article","created":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T17:34:57Z","timestamp":1770312897000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Tracheal agenesis diagnosed by supraglottic airway\u2013assisted endoscopic evaluation during neonatal resuscitation: a case report"],"prefix":"10.1186","volume":"12","author":[{"given":"Erika","family":"Miyazaki","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4918-099X","authenticated-orcid":false,"given":"Kentaro","family":"Yamakawa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie","family":"Kusumoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshie","family":"Taniguchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shoichi","family":"Uezono","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,5]]},"reference":[{"issue":"3","key":"852_CR1","doi-asserted-by":"publisher","first-page":"425","DOI":"10.1007\/s00431-011-1563-x","volume":"171","author":"MD de Groot","year":"2012","unstructured":"de Groot MD, Haak MC, Lakeman P, Cohen-Overbeek TE, van der Voorn JP, Bretschneider JH, et al. Tracheal agenesis: approach towards this severe diagnosis. Case report and review of the literature. Eur J Pediatr. 2012;171(3):425\u201331.","journal-title":"Eur J Pediatr"},{"issue":"6","key":"852_CR2","doi-asserted-by":"publisher","first-page":"741","DOI":"10.1001\/archotol.1989.01860300095025","volume":"115","author":"EM Diaz Jr","year":"1989","unstructured":"Diaz EM Jr, Adams JM, Hawkins HK, Smith RJ. Tracheal agenesis: a case report and literature review. Arch Otolaryngol Head Neck Surg. 1989;115(6):741\u20135.","journal-title":"Arch Otolaryngol Head Neck Surg"},{"issue":"11","key":"852_CR3","first-page":"1253","volume":"57","author":"T Georgescu","year":"2021","unstructured":"Georgescu T, Radoi V, Radulescu M, Ilian A, Toader OD, Pop LG, et al. Prenatal diagnosis and outcome of tracheal agenesis as part of congenital high airway obstruction syndrome: case presentation and literature review. Med (Kaunas). 2021;57(11):1253.","journal-title":"Med (Kaunas)"},{"issue":"16 Suppl 2","key":"852_CR4","first-page":"S385","volume":"152","author":"HC Lee","year":"2025","unstructured":"Lee HC, Strand ML, Finan E, Illuzzi J, Kamath-Rayne BD, Kapadia V, et al. Part 5: neonatal resuscitation: 2025 American heart association and American academy of pediatrics guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. Circulation. 2025;152(16 Suppl 2):S385\u2013423.","journal-title":"Circulation"},{"issue":"Suppl 1","key":"852_CR5","doi-asserted-by":"publisher","first-page":"110766","DOI":"10.1016\/j.resuscitation.2025.110766","volume":"215","author":"M Hogeveen","year":"2025","unstructured":"Hogeveen M, Monnelly V, Binkhorst M, Cusack J, Fawke J, Kardum D, et al. European resuscitation Council guidelines 2025: newborn resuscitation and support of transition of infants at birth. Resuscitation. 2025;215(Suppl 1):110766.","journal-title":"Resuscitation"},{"issue":"1","key":"852_CR6","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1097\/EJA.0000000000001928","volume":"41","author":"N Disma","year":"2024","unstructured":"Disma N, Asai T, Cools E, Cronin A, Engelhardt T, Fiadjoe J, et al. Airway management in neonates and infants: European society of anaesthesiology and intensive care and British journal of anaesthesia joint guidelines. Eur J Anaesthesiol. 2024;41(1):3\u201323.","journal-title":"Eur J Anaesthesiol"},{"issue":"6","key":"852_CR7","doi-asserted-by":"publisher","first-page":"618","DOI":"10.1111\/j.1460-9592.2009.02990.x","volume":"19","author":"N Jagannathan","year":"2009","unstructured":"Jagannathan N, Roth AG, Sohn LE, Pak TY, Amin S, Suresh S. The new air-Q intubating laryngeal airway for tracheal intubation in children with anticipated difficult airway: a case series. Paediatr Anaesth. 2009;19(6):618\u201322.","journal-title":"Paediatr Anaesth"},{"issue":"4","key":"852_CR8","doi-asserted-by":"publisher","first-page":"268","DOI":"10.1016\/j.amjoto.2005.01.001","volume":"26","author":"M Somri","year":"2005","unstructured":"Somri M, Barna Teszler C, Tome R, Kugelman A, Vaida S, Gaitini L. Flexible fiberoptic bronchoscopy through the laryngeal mask airway in a small, premature neonate. Am J Otolaryngol. 2005;26(4):268\u201371.","journal-title":"Am J Otolaryngol"},{"key":"852_CR9","first-page":"557","volume":"86","author":"J Floyd","year":"1962","unstructured":"Floyd J, Campbell DC Jr, Dominy DE. Agenesis of the trachea. Am Rev Respir Dis. 1962;86:557\u201360.","journal-title":"Am Rev Respir Dis"},{"key":"852_CR10","doi-asserted-by":"publisher","first-page":"49","DOI":"10.1186\/s12887-017-0806-z","volume":"17","author":"B Grass","year":"2017","unstructured":"Grass B, Simma L, Reinehr M, Zimmermann U, Gysin C, Henze G, et al. Two case reports of unexpected tracheal agenesis in the neonate: 3\u00a0C\u2019s beyond algorithms for difficult airway management. BMC Pediatr. 2017;17:49.","journal-title":"BMC Pediatr"},{"issue":"1 Pt 2","key":"852_CR11","doi-asserted-by":"publisher","first-page":"29","DOI":"10.1016\/S0022-3468(88)80534-7","volume":"23","author":"JI Fann","year":"1988","unstructured":"Fann JI, Hartman GE, Shochat SJ. Waterseal gastrostomy in the management of premature infants with tracheoesophageal fistula and pulmonary insufficiency. J Pediatr Surg. 1988;23(1 Pt 2):29\u201331.","journal-title":"J Pediatr Surg"}],"container-title":["JA Clinical Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s40981-026-00852-w","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40981-026-00852-w.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40981-026-00852-w.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T17:36:56Z","timestamp":1781631416000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1186\/s40981-026-00852-w"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,5]]},"references-count":11,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,12]]}},"alternative-id":["852"],"URL":"https:\/\/doi.org\/10.1186\/s40981-026-00852-w","relation":{},"ISSN":["2363-9024"],"issn-type":[{"value":"2363-9024","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,5]]},"assertion":[{"value":"4 January 2026","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"26 January 2026","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"31 January 2026","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"5 February 2026","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent was obtained from the patient\u2019s legal guardians for publication of this case report and accompanying images.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"16"}}