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Featured researches published by Shinya Ohtsuka.


Gastric Cancer | 2001

Long-term effects of jejunal pouch added to Roux-en-Y reconstruction after total gastrectomy

Kazuya Miyoshi; Sadanori Fuchimoto; Toshihide Ohsaki; Tatsuhiko Sakata; Shinya Ohtsuka; Norihisa Takakura

Background. Jejunal pouch reconstruction after total gastrectomy has been demonstrated to ameliorate postgastrectomy symptoms, with the process of adaptation taking several months. In contrast to the short-term effects of pouch reconstruction, there are few reports about the long-term consequences (more than 2 years after surgery). Methods. In this study, 22 patients with jejunal pouch (PRY group) and 12 patients without jejunal pouch (RY group) who survived for more than 2 years without any recurrence and were available for follow-up were compared. Patients in the two groups were compared 2 years after surgery in terms of postgastrectomy symptoms, and improvements in body weight and nutritional parameters. Results. Eating capacity at a single meal compared with that in the pre-illness state was significantly better in the PRY group than in the RY group. The total score on the gastrointestinal symptom rating scale (GSRS) in the PRY group was less than that in the RY group (3.17 vs 5.25). The GSRS score for reflux syndrome in the PRY group was significantly better than that in the RY group. Assessment according to Cuschieris gradings revealed that the total score in the PRY group was lower than that in the RY group (2.73 vs 5.92). Among the various symptoms examined, the incidence of dietary restriction and that of heartburn were significantly lower in the PRY group. Conclusion. We conclude that, 2 years after total gastrectomy, the pouch reconstruction had alleviated postgastrectomy symptoms to a greater extent than simple Roux-en-Y reconstruction, but the effectiveness could be improved. The long-term effects of pouch reconstruction should be examined more precisely with an adequate and valid scoring system for determining quality of life.


Okayama Igakkai Zasshi (journal of Okayama Medical Association) | 2009

成人鼠径ヘルニア手術症例の臨床的検討:Mesh plug 法と PROLENE hernia system の比較

Ryosuke Hamano; Shinya Ohtsuka; Sayaka Fujii; Manabu Nishie; Naoyuki Tokunaga; Yosuke Tsunemitsu; Kazuhide Iwakawa; Masaru Inagaki; Toshihide Ohsaki; Hiromi Iwagaki

To compare the results of the PROLENE hernia system (PHS) and mesh-plug technique (MPT), a retrospective study of adult patients with inguinal hernia was performed. The total number of inguinal herniorrhaphies for the past 9 years was 376, and the numbers of operative treatments by PHS, MPT and the Bassini procedure were 79, 291 and 6, respectively. There were no significant differences either in the operating time or the hospitalization days. No postoperative complications were observed in the PHS group; however, 8 complications were found among the 291 cases (2.75 %) of the MPT group (hematoma, 3 ; seroma, 2 ; testitis, 1 ; mesh infection, 2). Out of the total 376 cases, the number of initial and recurrence cases was 355 and 21, respectively, and out of the 21 recurrence cases the number of initial surgeries by Bassini and MPT was 14 and 7, respectively. Among the 21 recurrence cases there were no recurrences after PHS.


Okayama Igakkai Zasshi (journal of Okayama Medical Association) | 2009

A retrospective study of the PROLENE hernia system compared with the mesh‑plug technique

Ryosuke Hamano; Shinya Ohtsuka; Sayaka Fujii; Manabu Nishie; Naoyuki Tokunaga; Yosuke Tsunemitsu; Kazuhide Iwakawa; Masaru Inagaki; Toshihide Ohsaki; Hiromi Iwagaki

To compare the results of the PROLENE hernia system (PHS) and mesh-plug technique (MPT), a retrospective study of adult patients with inguinal hernia was performed. The total number of inguinal herniorrhaphies for the past 9 years was 376, and the numbers of operative treatments by PHS, MPT and the Bassini procedure were 79, 291 and 6, respectively. There were no significant differences either in the operating time or the hospitalization days. No postoperative complications were observed in the PHS group; however, 8 complications were found among the 291 cases (2.75 %) of the MPT group (hematoma, 3 ; seroma, 2 ; testitis, 1 ; mesh infection, 2). Out of the total 376 cases, the number of initial and recurrence cases was 355 and 21, respectively, and out of the 21 recurrence cases the number of initial surgeries by Bassini and MPT was 14 and 7, respectively. Among the 21 recurrence cases there were no recurrences after PHS.


Nippon Daicho Komonbyo Gakkai Zasshi | 2012

Abdominal Wall with Recurrent Invasive Colon Cancer Repaired Using a Tensor Fascia Latae Myocutaneous Flap

Kazuhide Iwakawa; Naoyuki Tokunaga; Yosuke Tsunemitsu; Kenta Isoda; Ryosuke Hamano; Manabu Nishie; Hideaki Miyasou; Shinya Ohtsuka; Hiromi Iwagaki


Nippon Daicho Komonbyo Gakkai Zasshi | 2010

Surgically Treated Cases of Metastatic Colorectal Cancer after Curative Resection for Gastric Cancer: A Clinicopathological Study

Kazuhide Iwakawa; Hitoshi Inoue; Hidenori Kiyochi; Shinsuke Kajiwara; Manabu Nishie; Ryosuke Hamano; Hideaki Miyaso; Shinya Ohtsuka; Hiromi Iwagaki


The Japanese Journal of Gastroenterological Surgery | 2014

A Squamous Cell Carcinoma of the Ascending Colon

Yuji Kimura; Shinya Ohtsuka; Kazuhide Iwakawa; Manabu Nishie; Ryousuke Hamano; Hideaki Miyasou; Yousuke Tsunemitsu; Masaru Inagaki; Hiromi Iwagaki; Hiroshi Sonobe


Okayama Igakkai Zasshi (journal of Okayama Medical Association) | 2012

Two cases of lymphoepithelial cyst of the pancreas

Ryosuke Hamano; Masaru Inagaki; Yuuji Kimura; Kenta Isoda; Koji Kitada; Manabu Nishie; Nagahisa Nomura; Naoyuki Tokunaga; Kenji Takahashi; Hideaki Miyasou; Yosuke Tsunemitsu; Shinya Ohtsuka; Kazuya Miyoshi; Kazuhide Iwakawa; Masahiko Takahashi; Hiromi Iwagaki


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2012

A case of metachronous adenocarcinoma arising at a colostomy site after abdominoperineal resection

Yuji Kimura; Kazuhide Iwakawa; Manabu Nishie; Shinya Ohtsuka; Masaru Inagaki; Hiromi Iwagaki


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2012

A case of intestinal obstruction presented with ileal endometriosis

Yuji Kimura; Shinya Ohtsuka; Ryosuke Hamano; Kazuhide Iwakawa; Masaru Inagaki; Hiromi Iwagaki


Acta Medica Okayama | 2012

Analysis of surgical outcomes of diverticular disease of the colon.

Hideaki Miyaso; Kazuhide Iwakawa; Koji Kitada; Yuji Kimura; Kenta Isoda; Manabu Nishie; Ryosuke Hamano; Naoyuki Tokunaga; Yosuke Tsunemitsu; Shinya Ohtsuka; Masaru Inagaki; Hiromi Iwagaki

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Sayaka Fujii

Kawasaki Medical School

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