H
Hisashi Nakamura
Publications - 11
Citations - 982
Hisashi Nakamura is an academic researcher. The author has contributed to research in topics: Perforation (oil well) & Lymphovascular invasion. The author has an hindex of 6, co-authored 10 publications receiving 764 citations.
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Journal ArticleDOI
Narrow-band imaging (NBI) magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team.
Yasushi Sano,Shinji Tanaka,Shin-ei Kudo,Shoichi Saito,Takahisa Matsuda,Yoshiki Wada,Takahiro Fujii,Hiroaki Ikematsu,Toshio Uraoka,Nozomu Kobayashi,Hisashi Nakamura,Kinichi Hotta,Takahiro Horimatsu,Naoto Sakamoto,Kuang-I Fu,Osamu Tsuruta,Hiroshi Kawano,Hiroshi Kashida,Yoji Takeuchi,Hirohisa Machida,Toshihiro Kusaka,Naohisa Yoshida,Ichiro Hirata,Takeshi Terai,Hiro-o Yamano,Kazuhiro Kaneko,Takeshi Nakajima,Taku Sakamoto,Yuichiro Yamaguchi,Naoto Tamai,Naoko Nakano,Nana Hayashi,Shiro Oka,Mineo Iwatate,Hideki Ishikawa,Yoshitaka Murakami,Shigeaki Yoshida,Yutaka Saito +37 more
TL;DR: The Japan NBI Expert Team was constituted with the aim of establishing a universal NBI magnifying endoscopic classification for colorectal tumors (JNET classification) in 2011, and consensus was reached on this classification using the modified Delphi method in June 2014.
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Local recurrence after endoscopic resection for large colorectal neoplasia: A multicenter prospective study in Japan
Shiro Oka,Shinji Tanaka,Yutaka Saito,Hiroyasu Iishi,Shin-ei Kudo,Hiroaki Ikematsu,Masahiro Igarashi,Yusuke Saitoh,Yuji Inoue,Kiyonori Kobayashi,Takashi Hisabe,Osamu Tsuruta,Yasushi Sano,Hiro-o Yamano,Seiji Shimizu,Naohisa Yahagi,Toshiaki Watanabe,Hisashi Nakamura,Takahiro Fujii,Hideki Ishikawa,Kenichi Sugihara +20 more
TL;DR: En bloc ESD reduces the local recurrence rate for large colorectal neoplasias, and piecemeal resection only in ESD is the most important risk factor forLocal recurrence regardless of the ER method used.
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Current status in the occurrence of postoperative bleeding, perforation and residual/local recurrence during colonoscopic treatment in Japan.
Shiro Oka,Shinji Tanaka,Hiroyuki Kanao,Hideki Ishikawa,Toshiaki Watanabe,Masahiro Igarashi,Yutaka Saito,Hiroaki Ikematsu,Kiyonori Kobayashi,Yuji Inoue,Naohisa Yahagi,Sumio Tsuda,Seiji Simizu,Hiroyasu Iishi,Hiro-o Yamano,Shin-ei Kudo,Osamu Tsuruta,Satoshi Tamura,Yusuke Saito,Eisai Cho,Takahiro Fujii,Yasushi Sano,Hisashi Nakamura,Kenichi Sugihara,Tetsuichiro Muto +24 more
TL;DR: Colorectal Endoscopic Resection Standardization Implementation Working Group, Japanese Society for Cancer of the Colon and Rectum, conducted a questionnaire survey to clarify the incidence of postoperative bleeding, perforation, and residual/local recurrence associated with colonoscopic treatment.
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Factors associated with technical difficulties and adverse events of colorectal endoscopic submucosal dissection: retrospective exploratory factor analysis of a multicenter prospective cohort.
Yoji Takeuchi,Hiroyasu Iishi,Shinji Tanaka,Yutaka Saito,Hiroaki Ikematsu,Shin-ei Kudo,Yasushi Sano,Takashi Hisabe,Naohisa Yahagi,Yusuke Saitoh,Masahiro Igarashi,Kiyonori Kobayashi,Hiro-o Yamano,Seiji Shimizu,Osamu Tsuruta,Yuji Inoue,Toshiaki Watanabe,Hisashi Nakamura,Takahiro Fujii,Noriya Uedo,Toshio Shimokawa,Hideki Ishikawa,Kenichi Sugihara +22 more
TL;DR: Poor lifting after submucosal injection was the risk factor most frequently associated with technical difficulties and adverse events on C-ESD, and less experienced endoscopists should start by performing C- ESDs on LST-G lesions.
Journal ArticleDOI
Validation study for development of the Japan NBI Expert Team classification of colorectal lesions.
Mineo Iwatate,Yasushi Sano,Shinji Tanaka,Shin-ei Kudo,Shoichi Saito,Takahisa Matsuda,Yoshiki Wada,Takahiro Fujii,Hiroaki Ikematsu,Toshio Uraoka,Nozomu Kobayashi,Hisashi Nakamura,Kinichi Hotta,Takahiro Horimatsu,Naoto Sakamoto,Kuang-I Fu,Osamu Tsuruta,Hiroshi Kawano,Hiroshi Kashida,Yoji Takeuchi,Hirohisa Machida,Toshihiro Kusaka,Naohisa Yoshida,Ichiro Hirata,Takeshi Terai,Hiro-o Yamano,Takeshi Nakajima,Taku Sakamoto,Yuichiro Yamaguchi,Naoto Tamai,Naoko Nakano,Nana Hayashi,Shiro Oka,Hideki Ishikawa,Yoshitaka Murakami,Shigeaki Yoshida,Yutaka Saito +36 more
TL;DR: The Japan narrow‐band imaging (NBI) Expert Team (JNET) was organized to unify four previous magnifying NBI classifications and created criteria (referred to as the NBI scale) for evaluation of vessel pattern and surface pattern.