25th WSCTS Annual Meeting and Exhibiotion 2015 2015年09月21日 Edinburgh, Scotlan

Isaka Tamami

Kanzaki Masato

Kikkawa Takuma

Mitsuboshi Shota

Murasugi Masahide

Ogihara Akira

Onuki Takamasa

Oyama Kunihiro

Sakamoto Kei

Yoshiya Takehito

Journal of Cardiothoracic Surgery

Tokyo Women’s Medical University

A novel and simple method for identifying thelung intersegmental plane with an infraredthermography著者名 Sakamoto Kei, Kanzaki Masato, Ogihara Akira,Mitsuboshi Shota, Yoshiya Takehito, KikkawaTakuma, Isaka Tamami, Oyama Kunihiro, MurasugiMasahide, Onuki Takamasayear 2015-12-16URL http://hdl.handle.net/10470/31431MEETING ABSTRACT Open AccessA novel and simple method for identifying thelung intersegmental plane with an infraredthermographyKei Sakamoto, Masato Kanzaki*, Akira Ogihara, Shota Mitsuboshi, Takehito Yoshiya, Takuma Kikkawa, Tamami Isaka,Kunihiro Oyama, Masahide Murasugi, Takamasa OnukiFrom World Society of Cardiothoracic Surgeons 25th Anniversary Congress, EdinburghEdinburgh, UK. 19-22 September 2015Background/IntroductionIn performing lung segmentectomy, identification of theintersegmental plane is a very important process. Toidentify the intersegmental plane, several methods havebeen reported: (1) making a border line between inflatedand deflated segments; (2) using infrared thoracoscopywith intravenous or intrabronchial injection of indocya-nine green; (3) identifying intersegmental pulmonaryvein using 3-dimensional pulmonary models. Howevereach method has its own problems, and the choice ofthese methods is controversial. Recently, in ex-vivostudy, the relation between lung perfusion and lung sur-face temperature was reported, whereas the change ofsurface temperature during lung segmentectomy has notbeen clarified.Aims/ObjectivesWe hypothesized that surface temperatures of resectingsegments or lobes decrease due to blood flow suppres-sion by ligation of target arteries and veins. Thereforewe tried to identify the intersegmental or interloberplane with an infrared thermography.MethodWe used experimental pig models, and performed lunglobectomies (n = 2), and segmentectomies (n = 4). Duringsurgical procedure, lung surface temperatures weremonitored with an infrared thermography through thethoracotomies.ResultsAfter ligation of target arteries and veins, differences intemperature between resecting and preserving areaswere clearly identified, and transitional zones of surfacetemperature were visualized as sharp lines. And inter-segmental or interlober planes detected by an infraredthermography were exactly matched with the linesdetected by inflate-deflate lines.Discussion/ConclusionResult of this study shows the possibility of the visualiza-tion of intersegmental or interlober planes with an infraredthermography. The thermographical method is noninva-sive, and we just need to monitor the lung surface with aninfrared thermography. In addition we can use the ther-mographical method together with conventional methodsduring operation. We consider that the thermographicalmethod can help thoracic surgeons who perform lung seg-mentectomy to identify the intersegmental plane simplyand precisely.Published: 16 December 2015doi:10.1186/1749-8090-10-S1-A113Cite this article as: Sakamoto et al.: A novel and simple method foridentifying the lung intersegmental plane with an infraredthermography. Journal of Cardiothoracic Surgery 2015 10(Suppl 1):A113.Department of Surgery, Tokyo Women’s Medical University, Shinjuku, Tokyo,162-8666, JapanSakamoto et al. Journal of Cardiothoracic Surgery 2015, 10(Suppl 1):A113http://www.cardiothoracicsurgery.org/content/10/S1/A113© 2015 Sakamoto et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided theoriginal work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

A novel and simple method for identifying the lung intersegmental plane with an infrared thermography

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A novel and simple method for identifying the lung intersegmental plane with an infrared thermography

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