{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T16:56:33Z","timestamp":1767372993226},"reference-count":18,"publisher":"American Dental Society of Anesthesiology (ADSA)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023]]},"abstract":"<jats:p>A tracheal bronchus is a congenital abnormality of the tracheobronchial tree in which a displaced or accessory bronchus arises from the trachea superior to its bifurcation. We herein report a case in which a tracheal bronchus was incidentally found after induction of general anesthesia, and we discuss the potential airway management problems that may have ensued. An 80-year-old man was scheduled for buccal mucosa resection and abdominal skin grafting for treatment of squamous cell carcinoma of the left buccal mucosa. Because of trismus and anticipated airway difficulty, an awake intubation was performed under sedation. A 3-branched structure was incidentally observed at the first branching site that was supposed to be the carina. The tip of the endotracheal tube was repositioned 3 cm above the tracheal trifurcation, and the rest of the procedure proceeded uneventfully. A flexible fiberoptic scope is not used in many anesthesia cases, making the identification of such tracheal or bronchial abnormalities more difficult. Therefore, it is important to carefully check the bronchial morphology on any available chest radiographs before surgery, listen to lung sounds after intubation, and assess thoracic lung compliance without neglecting routine safety checks.<\/jats:p>","DOI":"10.2344\/anpr-70-02-09","type":"journal-article","created":{"date-parts":[[2024,1,15]],"date-time":"2024-01-15T04:24:13Z","timestamp":1705292653000},"page":"173-177","source":"Crossref","is-referenced-by-count":2,"title":["Tracheal Bronchus Detected During General Anesthesia: A Case Report"],"prefix":"10.2344","volume":"70","author":[{"given":"Toru","family":"Yamamoto","sequence":"first","affiliation":[{"name":"Division of Dental Anesthesiology, Graduate School of Medicine and Dental Sciences, Niigata University, Niigata, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatsuru","family":"Tsurumaki","sequence":"additional","affiliation":[{"name":"Division of Dental Anesthesiology, Graduate School of Medicine and Dental Sciences, Niigata University, Niigata, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroko","family":"Kanemaru","sequence":"additional","affiliation":[{"name":"Division of Dental Anesthesiology, Graduate School of Medicine and Dental Sciences, Niigata University, Niigata, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenji","family":"Seo","sequence":"additional","affiliation":[{"name":"Division of Dental Anesthesiology, Graduate School of Medicine and Dental Sciences, Niigata University, Niigata, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1191","reference":[{"key":"i1878-7177-70-4-173-b01","series-title":"Br J Anaesth","first-page":"317","article-title":"Implication of a tracheal bronchus for adult anaesthetic practice","volume":"85","author":"Conacher","year":"2000","unstructured":"Conacher\n              ID.\n            \n          \n          Implication of a tracheal bronchus for adult anaesthetic practice.\nBr J Anaesth.\n2000;\n85:\n317\u2013321."},{"key":"i1878-7177-70-4-173-b02","series-title":"Anesthesiology","first-page":"581","article-title":"Obstruction of anomalous tracheal bronchus with endotracheal intubation","volume":"55","author":"Vredevoe","year":"1981","unstructured":"Vredevoe\n              LA,\n            \n            \n              Brechner\n              T,\n            \n            \n              Moy\n              TP.\n            \n          \n          Obstruction of anomalous tracheal bronchus with endotracheal intubation.\nAnesthesiology.\n1981;\n55:\n581\u2013583."},{"key":"i1878-7177-70-4-173-b03","series-title":"J Clin Anesth","first-page":"247","article-title":"An unusual cause of intraoperative hypoxemia","volume":"6","author":"Pribble","year":"1994","unstructured":"Pribble\n              CG,\n            \n            \n              Dean\n              JM.\n            \n          \n          An unusual cause of intraoperative hypoxemia.\nJ Clin Anesth.\n1994;\n6:\n247\u2013249."},{"key":"i1878-7177-70-4-173-b04","series-title":"Chest","first-page":"537","article-title":"Tracheal bronchus: a cause of prolonged atelectasis in intubated children","volume":"113","author":"O'Sullivan","year":"1998","unstructured":"O'Sullivan\n              BP,\n            \n            \n              Frassica\n              JJ,\n            \n            \n              Rayder\n              SM.\n            \n          \n          Tracheal bronchus: a cause of prolonged atelectasis in intubated children.\nChest.\n1998;\n113:\n537\u2013540."},{"key":"i1878-7177-70-4-173-b05","series-title":"Korean J Anesthesiol","first-page":"67","article-title":"The EZ-Blocker\u00ae for one-lung ventilation in a patient with Kartagener syndrome and tracheal bronchi","volume":"76","author":"Hwang","year":"2023","unstructured":"Hwang\n              B-Y,\n            \n            \n              Kwon\n              J-Y,\n            \n            \n              Kim\n              E,\n            \n            et al.\n\n          The EZ-Blocker\u00ae for one-lung ventilation in a patient with Kartagener syndrome and tracheal bronchi.\nKorean J Anesthesiol.\n2023;\n76:\n67\u201371."},{"key":"i1878-7177-70-4-173-b06","series-title":"Radiographics","first-page":"105","article-title":"Congenital bronchial abnormalities revisited","volume":"21","author":"Ghaye","year":"2001","unstructured":"Ghaye\n              B,\n            \n            \n              Szapiro\n              D,\n            \n            \n              Franchamps\n              JM,\n            \n            \n              Dondelinger\n              RF.\n            \n          \n          Congenital bronchial abnormalities revisited.\nRadiographics.\n2001;\n21:\n105\u2013119."},{"key":"i1878-7177-70-4-173-b07","series-title":"Radiographics","first-page":"358","article-title":"Ducou Le Pointe H, Sirinelli D. 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Surg","first-page":"240","article-title":"Tracheal bronchus: classification, endoscopic analysis, and airway management","volume":"126","author":"Doolittle","year":"2002","unstructured":"Doolittle\n              AM,\n            \n            \n              Mair\n              EA.\n            \n          \n          Tracheal bronchus: classification, endoscopic analysis, and airway management.\nOtolaryngol Head Neck Surg.\n2002;\n126:\n240\u2013243."},{"key":"i1878-7177-70-4-173-b14","series-title":"Pediatr Pulmonol","first-page":"814","article-title":"Tracheal anomalies associated with Down syndrome: a systematic review","volume":"56","author":"Fockens","year":"2021","unstructured":"Fockens\n              MM,\n            \n            \n              H\u00f6lscher\n              M,\n            \n            \n              Limpens\n              J,\n            \n            \n              Dikkers\n              FG.\n            \n          \n          Tracheal anomalies associated with Down syndrome: a systematic review.\nPediatr Pulmonol.\n2021;\n56:\n814\u2013822."},{"key":"i1878-7177-70-4-173-b15","series-title":"Anaesth Intensive Care","first-page":"274","article-title":"Right upper lobe collapse secondary to an anomalous bronchus after endotracheal intubation for routine surgery","volume":"35","author":"Critchley","year":"2007","unstructured":"Critchley\n              LAH,\n            \n            \n              Ho\n              AMH,\n            \n            \n              Lee\n              SY.\n            \n          \n          Right upper lobe collapse secondary to an anomalous bronchus after endotracheal intubation for routine surgery.\nAnaesth Intensive Care.\n2007;\n35:\n274\u2013277."},{"key":"i1878-7177-70-4-173-b16","series-title":"Br J Anaesth","first-page":"573","article-title":"Airway management for patients with a tracheal bronchus","volume":"76","author":"Ikeno","year":"1996","unstructured":"Ikeno\n              S,\n        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Anesthesiol.\n2017;\n55:\n87\u201388."},{"key":"i1878-7177-70-4-173-b18","series-title":"Respir Med Case Rep","first-page":"1","article-title":"Flow-volume loop abnormality detecting a previously unrecognized right upper lobe tracheal bronchus","volume":"15","author":"Ruzycki","year":"2015","unstructured":"Ruzycki\n              S,\n            \n            \n              Tsai\n              WH,\n            \n            \n              Davidson\n              WJ.\n            \n          \n          Flow-volume loop abnormality detecting a previously unrecognized right upper lobe tracheal bronchus.\nRespir Med Case Rep.\n2015;\n15:\n1\u20133."}],"container-title":["Anesthesia Progress"],"original-title":[],"link":[{"URL":"https:\/\/anesthesiaprogress.kglmeridian.com\/view\/journals\/anpr\/70\/4\/article-p173.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/meridian.allenpress.com\/anesthesia-progress\/article-pdf\/70\/4\/173\/3316905\/i1878-7177-70-4-173.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/anesthesiaprogress.kglmeridian.com\/downloadpdf\/journals\/anpr\/70\/4\/article-p173.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/anesthesiaprogress.kglmeridian.com\/downloadpdf\/journals\/anpr\/70\/4\/article-p173.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,7]],"date-time":"2024-10-07T12:44:58Z","timestamp":1728305098000},"score":1,"resource":{"primary":{"URL":"https:\/\/anesthesiaprogress.kglmeridian.com\/view\/journals\/anpr\/70\/4\/article-p173.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023]]},"references-count":18,"journal-issue":{"issue":"4"},"URL":"https:\/\/doi.org\/10.2344\/anpr-70-02-09","relation":{},"ISSN":["1878-7177","0003-3006"],"issn-type":[{"type":"electronic","value":"1878-7177"},{"type":"print","value":"0003-3006"}],"subject":[],"published":{"date-parts":[[2023]]}}}