{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T05:15:45Z","timestamp":1777526145977,"version":"3.51.4"},"reference-count":11,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2014,3,6]],"date-time":"2014-03-06T00:00:00Z","timestamp":1394064000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Asian Cardiovasc Thorac Ann"],"published-print":{"date-parts":[[2014,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Kinking of the middle lobar bronchus is sometimes observed after a right upper lobectomy, but prevention and treatment have not been established. This study aimed to determine the risk factors for a kinked middle lobar bronchus causing postoperative middle lobe atelectasis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We performed a retrospective analysis of the medical records of 35 patients who underwent a right upper lobectomy in our hospital. Demographic and preoperative variables were compared in 4 patients with postoperative middle lobe atelectasis and kinking of the middle lobar bronchus and 31 without postoperative middle lobe atelectasis, determined by bronchoscopy and computed tomography findings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>There were no significant differences between the two groups in terms of age, sex, body mass index, smoking status, lung function test results, or volume ratio of the right upper lobe. A shorter distance from the carina to the middle lobe orifice was the only risk factor for a kinked middle lobar bronchus identified (40.25\u2009\u00b1\u20092.45 vs. 48.06\u2009\u00b1\u20094.78\u2009mm, p\u2009=\u20090.006).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>A short distance from the carina to the middle lobe orifice could be a risk factor for kinking of the middle lobar bronchus in postoperative middle lobe atelectasis after right upper lobectomy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0218492314526396","type":"journal-article","created":{"date-parts":[[2014,3,6]],"date-time":"2014-03-06T20:37:42Z","timestamp":1394138262000},"page":"955-959","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["A risk factor for kinked middle lobar bronchus following right upper lobectomy"],"prefix":"10.1177","volume":"22","author":[{"given":"Yoshiko","family":"Masuda","sequence":"first","affiliation":[{"name":"Department of Thoracic Surgery, Kumamoto Chuo Hospital, Kumamoto, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takashi","family":"Marutsuka","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Kumamoto Chuo Hospital, Kumamoto, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Makoto","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2014,3,6]]},"reference":[{"key":"bibr1-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.166.3.3340769"},{"key":"bibr2-0218492314526396","first-page":"417","volume":"12","author":"Kanemitsu S","year":"2006","journal-title":"Ann Thorac Cardiovasc Surg"},{"key":"bibr3-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1007\/s00595-008-3767-x"},{"key":"bibr4-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.162.3.3809475"},{"key":"bibr5-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1378\/chest.111.5.1285"},{"key":"bibr6-0218492314526396","unstructured":"Ohsumi A, Miyamoto Y, Nagai S. Sleeve resection of bronchial stump for bronchial kinking after left upper lobectomy.\n                      J Jpn Soc Bronchol\n                      2010; 32: 347\u2013351."},{"key":"bibr7-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1148\/109.3.577"},{"key":"bibr8-0218492314526396","unstructured":"Nezu K, Iioka S, Tojo T, et\u00a0al. Deformation of the residual bronchus after upper lobectomy of the lung.\n                      J Jpn Soc Bronchol\n                      1994; 16: 539\u2013544."},{"key":"bibr9-0218492314526396","unstructured":"Hasegawa T, Tomioka H, Okazaki M, et\u00a0al. Clinical aspect, bronchoscopic and bronchographic findings of patients with middle lobe syndrome.\n                      J Jpn Soc Bronchol\n                      1991; 12: 259\u2013265."},{"key":"bibr10-0218492314526396","doi-asserted-by":"publisher","DOI":"10.1007\/s005950050122"},{"key":"bibr11-0218492314526396","doi-asserted-by":"crossref","unstructured":"Masuda Y. Kinking of the middle lobar bronchus after right upper lobectomy.\n                      J Jpn Bronchoesophagol Soc\n                      2013; 64: 41\u201346.","DOI":"10.2468\/jbes.64.41"}],"container-title":["Asian Cardiovascular and Thoracic Annals"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0218492314526396","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0218492314526396","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0218492314526396","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T16:28:41Z","timestamp":1777393721000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/0218492314526396"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,3,6]]},"references-count":11,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2014,10]]}},"alternative-id":["10.1177\/0218492314526396"],"URL":"https:\/\/doi.org\/10.1177\/0218492314526396","relation":{},"ISSN":["0218-4923","1816-5370"],"issn-type":[{"value":"0218-4923","type":"print"},{"value":"1816-5370","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,3,6]]}}}