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Faculty of Medicine School of Medicine Department of Surgery, Plastic and Reconstructive Surgery |
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Associate Professor |
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ITO Hiroshi
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Research Areas 【 display / non-display 】
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Life Science / Plastic and reconstructive surgery
Papers 【 display / non-display 】
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Postoperative Monitoring by Near-Infrared Spectroscopy in Transferred Free Tissue Reviewed
Fujita Tamaki, Ito Hiroshi, Ito Noriko, Nakai Michikazu
International Journal of Surgical Wound Care 6 ( 4 ) 112 - 120 2025.12
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 日本創傷外科学会
Background: Near-infrared spectroscopy is being increasingly frequently used for postoperative monitoring of free flaps, offering real-time data on regional oxygen saturation and total hemoglobin index. However, comprehensive reports on Hb values and ssfree flaps using near-infrared spectroscopy analyzed the findings.<br>Methods: Eight types of free flaps were evaluated. The regional oxygen saturation and total hemoglobin index were measured in flap and normal control sites immediately after surgery and on postoperative days 1, 2, 3, 5, and 7. Measurements were taken by the surgeon or assistant. Flap viability was assessed clinically and with near-infrared spectroscopy; reoperation or other interventions were performed as necessary. Data were analyzed using a generalized linear mixed model.<br/>Results: Among 110 monitored flaps, 10 failed; of these, 4 were salvaged, 4 were partially necrotic, and 2 were completely necrotic. Causes included venous thrombus (four), arteriovenous thrombus (two), hematoma (one), and other causes (three). All failures were detected between postoperative days 1 and 4. Successful flaps showed lower regional oxygen saturation and higher total hemoglobin index values than normal controls. The difference in regional oxygen saturation was greater after the first postoperative day than immediately after surgery, while the total hemoglobin index difference remained constant. Radial forearm flaps had higher initial regional oxygen saturation and total hemoglobin index; deep inferior epigastric artery perforator flaps showed lower values throughout.<br>Conclusions: Near-infrared spectroscopy parameters vary by flap type and should be considered in postoperative monitoring. Differences between the flap and control sites, especially in total hemoglobin index, may serve as useful criteria for flap assessments.<br/>
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A Case of the Divided Nevus of the Eyelids Treated with Only Serial Excision Reviewed
Ito Noriko, Ito Hiroshi, Fujita Tamaki
Japanese Journal of Surgical Wound Care 16 ( 3 ) 98 - 102 2025
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society for Surgical Wound Care
DOI： 10.11310/jsswc.16.98
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Ito Hiroshi, Hori Keijiro, Niimi Yosuke, Watanabe Tatsushi
Journal of Plastic and Reconstructive Surgery 1 ( 1 ) 20 - 25 2022.1
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 日本形成外科学会
In some cases of free flap transfer, two comitant veins must be anastomosed to a single suitable recipient vein to avoid congestion due to the lack of network between the two comitant veins. In this situation, both veins are mostly anastomosed to the recipient vein in an end-to-side fashion. However, the distal end of the recipient vein sometimes has to be cut to reach the comitant veins that are short in length. In such cases, we anastomose both of the comitant veins to a single recipient vein in an end-to-end fashion with a twin tower shape. The twin tower-shaped anastomosis technique involves two comitant veins in parallel anastomosed to a single recipient vein in an end-to-end fashion, and the gap of the two comitant veins is closed directly via an interrupted suture method. With this technique, two comitant veins and the recipient vein can be successfully anastomosed in an end-to-end fashion.
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指間形成に対する局所皮弁の工夫 Reviewed
伊東 大、仲沢弘明、森岡康祐
形成外科 45 ( 10 ) 951 - 959 2002
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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増刊号 エキスパートの知恵と経験211Pearls-若手にシェアしたい私のこだわり- 四肢の手術 2.爪床損傷の程度を見極める:抜爪して評価を! Reviewed
伊東 大
形成外科 68 ( 13 ) S93 - S93 2025.6
Authorship：Lead author Publishing type：Research paper (scientific journal) Publisher：克誠堂出版(株)
Books 【 display / non-display 】
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続・食道疾患症例集—こんな時どうする？
田代耕盛、武野慎祐、河野文彰、伊東 大、七島篤志、中村都英（ Role： Contributor）
海鳥社 2019.6
Language：Japanese
Presentations 【 display / non-display 】
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宮崎大学形成外科8年間の報告と今後の展望
伊東 大
第3回南九州形成外科フォーラム
Event date： 2025.11.21
Presentation type：Public lecture, seminar, tutorial, course, or other speech
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当科における超高齢者に対する手術症例の検討
鬼頭雄也、伊東 大、伊東憲子、赤嶺 希
第127回九州・沖縄形成外科学会学術集会
Event date： 2025.11.1
Presentation type：Oral presentation (general)
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当科における超高齢者に対する手術症例の検討
鬼頭雄也、伊東 大、伊東憲子、赤嶺 希
第58回新宿フォーラム
Event date： 2025.10.24
Presentation type：Oral presentation (general)
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腹部巨大腫瘍摘除術により右鼠径部の再建を行った1例
小島 慎平 田代 尚己 村嶋 隆哉 永井 崇敬 澤田 篤郎 賀本 敏行、伊東 大、佐藤 勇一郎
第22回泌尿器科再建再生研究会
Event date： 2025.5.24
Presentation type：Poster presentation
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遊離組織移植症例の近赤外線小型組織オキシメーターを併用した術後管理
藤田 環、伊東 大、伊東憲子、中井陸運
第68回日本形成外科学会総会・学術集会 2025.4.17
Event date： 2025.4.16 - 2025.4.18
Presentation type：Oral presentation (general)