{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,1]],"date-time":"2024-09-01T06:33:31Z","timestamp":1725172411882},"reference-count":13,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T00:00:00Z","timestamp":1654646400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T00:00:00Z","timestamp":1654646400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Anesthesiol"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Although there are at least seven manufacturers producing left-sided double-lumen tubes (DLTs), there have been few reports comparing the segments of these DLTs. In this study, we compared various segments of left-sided DLTs further.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>We examined five manufacturers\u2019 left-sided DLTs: Mallinckrodt, Portex, R\u00fcsch, Sheridan, and Daiken-medical. We conducted the following six trials or measurements, and three supplemental trials or measurements: First, we tried to pass various sizes of steel balls down each lumen in order from the smallest (3\u00a0mm) to largest (4.5\u00a0mm). If the ball passed on the first attempt, we tried just once; otherwise, we made a second attempt. Second, we measured the external diameter of tracheal and bronchial cuff using a profile projector. Third, we measured the length of the cuff and tip of the bronchial segment of the tubes using the profile projector. Fourth, we measured various lengths of the tubes. Fifth, we measured the external diameter of both lumens and the tubules for tracheal and bronchial cuff inflation. Finally, we measured various cross-sectional areas including the tracheal lumen, bronchial lumen, and tubules for cuff inflation. We also conducted three supplemental studies. First, we measured air volume in the cuff when intracuff pressure equaled 2 or 3\u00a0kPa. Second, we defined the configuration of the tracheal and bronchial cuffs. Third, we defined the presence or absence of bevels and also measured the angle of the bevels using the profile projector.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>We performed nine trials and measurements and found large disparities between each manufacturer\u2019s tubes.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The large disparities found between the measurements of the five manufacturers\u2019 tubes may be due to different lots or changes in specifications made by each manufacturer. We found tubes exhibiting lower quality, such as deformations, and non-universal and inconsistent sizing, in the comparison of the manufacturers\u2019 tubes. Practitioners should be aware of the features and aspects of these tubes.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12871-022-01698-2","type":"journal-article","created":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T06:04:09Z","timestamp":1654668249000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Comparisons of the segments of left-sided double-lumen tracheobronchial tubes as industrial products"],"prefix":"10.1186","volume":"22","author":[{"given":"Zen\u2019ichiro","family":"Wajima","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiya","family":"Shiga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuyuki","family":"Imanaga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,6,8]]},"reference":[{"key":"1698_CR1","doi-asserted-by":"publisher","first-page":"583","DOI":"10.1016\/S1053-0770(96)80132-7","volume":"10","author":"LM Watterson","year":"1996","unstructured":"Watterson LM, Harrison GA. A comparison of the endobronchial segment of modern left-sided double-lumen tubes in anesthesia for bilateral sequential lung transplantation. J Cardiothorac Vasc Anesth. 1996;10:583\u20135.","journal-title":"J Cardiothorac Vasc Anesth"},{"key":"1698_CR2","doi-asserted-by":"publisher","first-page":"618","DOI":"10.1177\/0310057X0603400513","volume":"34","author":"L Partridge","year":"2006","unstructured":"Partridge L, Russell WJ. The margin of safety of a left double-lumen tracheobronchial tube depends on the length of the bronchial cuff and tip. Anaesth Intensive Care. 2006;34:618\u201320.","journal-title":"Anaesth Intensive Care"},{"key":"1698_CR3","first-page":"3634202","volume":"2019","author":"N Hegland","year":"2019","unstructured":"Hegland N, Schnitzler S, Ellensohn J, Steurer MP, Weiss M, Dullenkopf A. Dimensional variations of left-sided double-lumen endobronchial tubes. Anesthesiol Res Pract. 2019;2019:3634202.","journal-title":"Anesthesiol Res Pract"},{"issue":"59\u201378","key":"1698_CR4","first-page":"9","volume":"75","author":"G Merli","year":"2009","unstructured":"Merli G, Guarino A, Della Rocca G, Frova G, Petrini F, Sorbello M, et al. Recommendations for airway control and difficult airway management in thoracic anesthesia and lung separation procedures. Minerva Anestesiol. 2009;75(59\u201378):9\u201396.","journal-title":"Minerva Anestesiol"},{"key":"1698_CR5","doi-asserted-by":"publisher","first-page":"729","DOI":"10.1097\/00000542-198711000-00018","volume":"67","author":"JL Benumof","year":"1987","unstructured":"Benumof JL, Partridge BL, Salvatierra C, Keating J. Margin of safety in positioning modern double-lumen endotracheal tubes. Anesthesiology. 1987;67:729\u201338.","journal-title":"Anesthesiology"},{"key":"1698_CR6","volume-title":"Understanding anesthesia equipment","author":"JA Dorsch","year":"2008","unstructured":"Dorsch JA, Drosch SE. Tracheal tubes and associated equipment. In: Dorsch HA, Drosch SE, editors. Understanding anesthesia equipment. 5th ed. Philadelphia: Lippincott Williams & Wilkins, a Wolters Kluwer business; 2008.","edition":"5"},{"key":"1698_CR7","doi-asserted-by":"publisher","first-page":"732","DOI":"10.1213\/00000539-199809000-00048","volume":"87","author":"Y Doi","year":"1998","unstructured":"Doi Y, Uda R, Akatsuka M, Tanaka Y, Kishida H, Mori H. Damaged Univent tubes. Anesth Analg. 1998;87:732\u20133.","journal-title":"Anesth Analg"},{"key":"1698_CR8","unstructured":"Mallinckrodt\u2122 Tracheal Tubes Airway Product Catalogue https:\/\/akinglobal.com.tr\/uploads\/subdir-141-4\/covidien%20Tracheal-Tubes-Airway-Product-Catalogue.pdf Accessed 26 Dec 2019."},{"key":"1698_CR9","doi-asserted-by":"publisher","first-page":"168","DOI":"10.1016\/S1053-0770(97)90208-1","volume":"11","author":"M Hannallah","year":"1997","unstructured":"Hannallah M, Benumof JL, Silverman PM, Kelly LC, Lea D. Evaluation of an approach to choosing a left double-lumen tube size based on chest computed tomographic scan measurement of left mainstem bronchial diameter. J Cardiothorac Vasc Anesth. 1997;11:168\u201371.","journal-title":"J Cardiothorac Vasc Anesth"},{"key":"1698_CR10","doi-asserted-by":"publisher","first-page":"50","DOI":"10.1177\/0310057X0303100109","volume":"31","author":"WJ Russell","year":"2003","unstructured":"Russell WJ, Strong TS. Dimensions of double-lumen tracheobronchial tubes. Anaesth Intensive Care. 2003;31:50\u20133.","journal-title":"Anaesth Intensive Care"},{"key":"1698_CR11","doi-asserted-by":"publisher","first-page":"117","DOI":"10.1016\/S1053-0770(05)80179-X","volume":"9","author":"P Slinger","year":"1995","unstructured":"Slinger P. Choosing the appropriate double-lumen tube: a glimmer of science comes to a dark art. J Cardiothorac Vasc Anesth. 1995;9:117\u20138.","journal-title":"J Cardiothorac Vasc Anesth"},{"key":"1698_CR12","doi-asserted-by":"publisher","first-page":"120","DOI":"10.1213\/ANE.0000000000002657","volume":"127","author":"EB Rosero","year":"2018","unstructured":"Rosero EB, Ozayar E, Eslava-Schmalbach J, Minhajuddin A, Joshi GP. Effects of increasing airway pressures on the pressure of the endotracheal tube cuff during pelvic laparoscopic surgery. Anesth Analg. 2018;127:120\u20135.","journal-title":"Anesth Analg"},{"key":"1698_CR13","first-page":"633","volume-title":"Understanding anesthesia equipment","author":"JA Dorsch","year":"2008","unstructured":"Dorsch JA, Drosch SE. Lung isolation devices. In: Dorsch HA, Drosch SE, editors. Understanding anesthesia equipment. 5th ed. Philadelphia: Lippincott Williams & Wilkins, a Wolters Kluwer business; 2008. p. 633\u201360.","edition":"5"}],"container-title":["BMC Anesthesiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12871-022-01698-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12871-022-01698-2\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12871-022-01698-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T06:04:19Z","timestamp":1654668259000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmcanesthesiol.biomedcentral.com\/articles\/10.1186\/s12871-022-01698-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,6,8]]},"references-count":13,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,12]]}},"alternative-id":["1698"],"URL":"https:\/\/doi.org\/10.1186\/s12871-022-01698-2","relation":{},"ISSN":["1471-2253"],"issn-type":[{"value":"1471-2253","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,6,8]]},"assertion":[{"value":"20 July 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"17 May 2022","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"8 June 2022","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable. We declare that ethical approval and informed consent was waived by the ethics committee of the International University of Health and Welfare Hospital. All methods were carried out in accordance with relevant guidelines and regulations.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"We declared that all authors have no conflicts of interest in regard to this work and no conflict of interest with any of the manufacturers of the five included DLTs.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"177"}}