フルテキストファイル
著者
Yagi, Shunjiro Department of Plastic and Reconstructive Surgery, Tottori University Hospital 研究者総覧 KAKEN
Sasaki, Takafumi Cardio Flow Design, Inc.
Fukuhara, Takahiro Division of Otolaryngology, Head and Neck Surgery, Department of Sensory and Motor Organs, School of Medicine, Faculty of Medicine, Tottori University 研究者総覧 KAKEN
Fujii, Kaori Department of Plastic and Reconstructive Surgery, Tottori University Hospital
Morita, Maki Department of Plastic and Reconstructive Surgery, Tottori University Hospital
Suyama, Yoshiko Department of Plastic and Reconstructive Surgery, Tottori University Hospital 研究者総覧 KAKEN
Fukuoka, Kohei Department of Plastic and Reconstructive Surgery, Tottori University Hospital
Nishino, Teruyasu Cardio Flow Design, Inc.
Hisatome, Ichiro Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medical Sciences, Tottori University 研究者総覧 KAKEN
キーワード
computational fluid dynamics
computational modeling
microsurgery
reconstruction
sutured
抄録
[Background] Technical issues in free flap transfer, such as the selection of recipient vessels and the positioning and method of anastomosis of the vascular pedicle, have been the subject of vigorous debate. Recent developments in computational fluid dynamics (CFD) have enabled the analysis of blood flow within microvessels. In this study, CFD was used to analyze hemodynamics in a microanastomosis. [Methods] In the fluid calculation process, the fluid domain modelizes microvessels with anastomosis. The inlet flow conditions were measured as venous waveform, and the fluid is simulated as blood. Streamlines (SL), wall shear stress (WSS), and oscillatory shear index (OSI) at the anastomosis were visualized and analyzed for observing effects from the flow field. [Results] Some flow disruption was evident as the SL passed over the sutures. The maximum recorded WSS was 13.37 Pa where the peak of a suture was exposed in the lumen. The local maximum value of the OSI was 0.182, recorded at the base of the anastomosis on the outflow side. [Conclusion] In the ideal anastomosis, the SL is disrupted as little as possible by the sutures. The WSS indicated that thrombus formation is unlikely to occur at suture peaks, but more likely to occur at the base of sutures, where the OSI is high. Tight suture knots are important in microanastomosis.
出版者
Tottori University Medical Press
資料タイプ
学術雑誌論文
外部リンク
ISSN
0513-5710
EISSN
1346-8049
書誌ID
AA00892882
掲載誌名
Yonago Acta Medica
最新掲載誌名
Yonago Acta Medica
63
4
開始ページ
308
終了ページ
312
Original Articles
発行日
2020-11-24
出版者DOI
著者版フラグ
出版社版
著作権表記
注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.
掲載情報
Yagi Shunjiro, Sasaki Takafumi, Fukuhara Takahiro, et al. Hemodynamic Analysis of a Microanastomosis Using Computational Fluid Dynamics. 2020, 63(4). 308-312. doi:10.33160/yam.2020.11.013
部局名
医学部・医学系研究科・医学部附属病院
言語
英語