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Dive into the research topics where Tsuyoshi Sasagawa is active.

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Featured researches published by Tsuyoshi Sasagawa.


Digestive Endoscopy | 1995

Laparoscopic Wedge Resection of the Stomach for Submucosal Tumor

Tsuyoshi Sasagawa; Hiroyoshi Suzuki; Youichi Kitamura; Ffidetoshi Oguma; Naoki Ishizuka; Akihiko Endo; Shigeru Suzuki; Ken Takasaki

We performed laparoscopic wedge resection of the stomach in two patients with submucosal gastric tumor. Three trocars were inserted in addition to a laparoscope. After the blood vessels surrounding the tumors had been ligated with ENDO CUPs, we used ENDO GIA (a linear endoscopic stapling device) four times and then wedge resection was performed. The operative time was 3h33m in Case 1 and 2.5h in Case 2, and bleeding was minimal in both cases. The postoperative courses were uneventful, and intestinal peristalsis recovered rapidly with minimal wound pain. These results suggest that laparoscopic wedge resection of the stomach, a radical procedure, is indicated for submucosal tumor of the stomach.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1995

The Effect of Extended Lymph Node Dissection in Patients with Gastric Cancer from Two Aspects, Quality of Life and Postoperative Survival Rate.

Youichi Kitamura; Hiroyoshi Suzuki; Tsuyoshi Sasagawa; Hidetoshi Oguma; Akihiko Endou; Naoki Ishizuka

胃癌におけるリンパ節拡大郭清の効果について, 過去10年間の2,592例を検討した. 検討は, 4群郭清 (D4) と2群郭清 (D2) の2群間で, 胃癌取扱い規約12版の進行程度に沿って層別化し, 生存率を対比した. また3年間経過を追えた再発のない胃全摘膵脾合切例で, 全身状態, quality of life (QOL) などについて対比した.(結果) D4郭清がD2郭清より, 各進行程度で良好であり, sen0, m, sm, n2 (+), mp, ss, n2 (+), se, n2 (+) の各群で, 有意の差を認めた.また, D4, D2の2群間で直死率, 術後縫合不全, 入院日数などに差を認めなかった. また各種QOLに関するアンケート調査の結果差を認めなかった.(まとめ) D4郭清はD2郭清と対比して, 安全で, QOLを損なうことがなく, また, stage II, IIIで良好な成績を示すことから, 積極的に選択すべき術式と考えた.


Archive | 1993

Diagnosis of Lymph Nodes with Metastasis from Stomach Cancer Using Ultrasonography

Youichi Kitamura; Hiroyoshi Suzuki; Tsuyoshi Sasagawa; Kiyotaka Yamamoto

Diagnosis of Lymph nodes metastasis has not been studied thoroughly. Thus, the diagnosis of lymph nodes metastasis using ultrasonography were examined. The following 3 items are defined as the criteria of metastasis (1)the major axis is more than 5mm, (2) the shape is spherical, (3)uniformly low internal echo is observed. Cases for which the extent of occupation by cancer was small were, how ever, not consistent with the above criteria. This is a future problem.


Anticancer Research | 2014

HER2-positive Gastric Cancer with Paraaortic Nodal Metastasis Successfully Resected After Chemotherapy with Trastuzumab: A Case Report

Naoki Ikari; Go Nakajima; Kiyoaki Taniguchi; Tsuyoshi Sasagawa; Kosuke Narumiya; Takuji Yamada; Kenji Kudo; Yoichi Kitamura; Kazuhiko Hayashi; Toshio Nishikawa; Masakazu Yamamoto


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1990

A study on cases of death due to recurrence in early gastric cancer.

Hideo Tezuka; Hiroyoshi Suzuki; Youichi Kitamura; Tsuyoshi Sasagawa; Shigeko Takeuchi; Takashi Haratsuka; Takayuki Tanaka; Kiyotaka Yamamoto; Yutaka Yoshida


Hepato-gastroenterology | 2008

Left thoracoabdominal approach for adenocarcinoma of the esophagogastric junction.

Tsutomu Nakamura; Hidetoshi Oguma; Tsuyoshi Sasagawa; Masaho Ota; Yoichi Kitamura; Masakazu Yamamoto


Journal of Tokyo Women's Medical College | 2003

A Patient with Recurrent Malignant Gastrointestinal Stromal Tumors Who Completely Responded to STI571

Yoichi Kitamura; Hidetoshi Oguma; Tsuyoshi Sasagawa; Kazuhiko Hayashi; Ken Takasaki


The Japanese Journal of Gastroenterological Surgery | 2015

Preoperative Evaluation of Body Muscle Mass is Useful for Risk Assessment for Male Patients with Gastric Cancer

Takuji Yamada; Kiyoaki Taniguchi; Tsuyoshi Sasagawa; Yoichi Kitamura; Masakazu Yamamoto


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2011

A CASE OF AMYLASE-PRODUCING SIGMOID COLON CANCER

Takuji Yamada; Kiyoaki Taniguchi; Satoshi Takeichi; Tsuyoshi Sasagawa; Yoichi Kitamura; Masakazu Yamamoto


Nihon Gekakei Rengo Gakkaishi (journal of Japanese College of Surgeons) | 2011

A Case of Severe Reflux Esophagitis After Total Gastrectomy Reconstruction in Billroth^|^ndash;II Resolved by a Simple Reoperation

Kiyoaki Taniguchi; Tsuyoshi Sasagawa; Satoshi Takeichi; Takuji Yamada; Hiroko Suzuki; Yoichi Kitamura; Masakazu Yamamoto

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