{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T22:30:58Z","timestamp":1774564258284,"version":"3.50.1"},"reference-count":17,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2004,10,1]],"date-time":"2004-10-01T00:00:00Z","timestamp":1096588800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2004,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Infantile tracheomalacia is a potentially life-threatening disease requiring prolonged artificial respiratory support. Diagnosis and management of this disease may be further improved by establishing a suitable objective and quantitative assessment protocol for tracheal collapsibility. It is our hypothesis that tracheal collapsibility can be represented by the relationship between intraluminal pressure and the cross-sectional area of the trachea. To test this hypothesis, static pressure\/area relationships of the trachea were obtained from anesthetized and paralyzed infants, who were diagnosed as having tracheomalacia by endoscopic observation. These relationships were fitted on a linear regression model, followed by calculation of the estimated closing pressure. The tracheal closing pressure ranged from \u22128 to \u221227 cm H2O, suggesting easy collapsibility of the trachea during crying or coughing and noncollapsibility during the spontaneous respiratory cycle, which coincided with the infants' symptoms. It is our conclusion that tracheal collapsibility of infants with tracheomalacia can be quantitatively assessed by the static pressure\/area relationship of the trachea obtained under general anesthesia and paralysis.<\/jats:p>","DOI":"10.1164\/rccm.200312-1691oc","type":"journal-article","created":{"date-parts":[[2004,7,8]],"date-time":"2004-07-08T20:28:00Z","timestamp":1089318480000},"page":"780-785","source":"Crossref","is-referenced-by-count":21,"title":["Quantitative Assessment of Tracheal Collapsibility in Infants with Tracheomalacia"],"prefix":"10.1093","volume":"170","author":[{"given":"Junko","family":"Okazaki","sequence":"first","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shiroh","family":"Isono","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hisaya","family":"Hasegawa","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miho","family":"Sakai","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuzo","family":"Nagase","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takashi","family":"Nishino","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba; Department of Neonatology; and Department of Cardiovascular Surgery, Matsudo City Hospital, Matsudo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2004,10,1]]},"reference":[{"key":"2026032606284836700_BIB1","first-page":"1013","volume-title":"Ann Otol Rhinol Laryngol","year":"1963"},{"key":"2026032606284836700_BIB2","first-page":"832","volume-title":"Pediatr Res","year":"1998"},{"key":"2026032606284836700_BIB3","first-page":"567","volume-title":"Pediatrics","year":"1995"},{"key":"2026032606284836700_BIB4","first-page":"548","volume-title":"J Pediatr Surg","year":"1992"},{"key":"2026032606284836700_BIB5","first-page":"393","volume-title":"AJR Am J Roentgenol","year":"1998"},{"key":"2026032606284836700_BIB6","first-page":"241","volume-title":"Pediatr Pulmonol","year":"1996"},{"key":"2026032606284836700_BIB7","first-page":"1074","volume-title":"J Pediatr","year":"1988"},{"key":"2026032606284836700_BIB8","first-page":"170","volume-title":"Pediatr Pulmonol","year":"1990"},{"key":"2026032606284836700_BIB9","first-page":"162","volume-title":"Anesth Analg","year":"1996"},{"key":"2026032606284836700_BIB10","first-page":"233","volume-title":"Pediatr Pulmonol","year":"1990"},{"key":"2026032606284836700_BIB11","first-page":"178","volume-title":"Gastrointest Endosc","year":"1994"},{"key":"2026032606284836700_BIB12","first-page":"832","volume-title":"Am J Respir Crit Care Med","year":"2000"},{"key":"2026032606284836700_BIB13","first-page":"14","volume-title":"Pediatr Pulmonol","year":"1989"},{"key":"2026032606284836700_BIB14","first-page":"149","volume-title":"Early Hum Dev","year":"2000"},{"key":"2026032606284836700_BIB15","first-page":"322","volume-title":"Eur Respir J","year":"1997"},{"key":"2026032606284836700_BIB16","first-page":"137","volume-title":"Pediatr Pulmonol","year":"2003"},{"key":"2026032606284836700_BIB17","first-page":"59","volume-title":"J Pediatr","year":"1997"}],"container-title":["American Journal of Respiratory and Critical Care Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/170\/7\/780\/67490883\/ajrccm_170_7_780.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/170\/7\/780\/67490883\/ajrccm_170_7_780.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T10:28:53Z","timestamp":1774520933000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ajrccm\/article\/170\/7\/780\/8538724"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,10,1]]},"references-count":17,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2004,10,1]]},"published-print":{"date-parts":[[2004,10,1]]}},"URL":"https:\/\/doi.org\/10.1164\/rccm.200312-1691oc","relation":{},"ISSN":["1073-449X","1535-4970"],"issn-type":[{"value":"1073-449X","type":"print"},{"value":"1535-4970","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2004,10]]},"published":{"date-parts":[[2004,10,1]]}}}