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Dive into the research topics where Nobuyuki Kawamura is active.

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Featured researches published by Nobuyuki Kawamura.


Journal of Gastroenterology | 1997

Hemorrhage into a simple liver cyst: Diagnostic implications of a recent case

Kazuhiro Hanazaki; Wakabayashi M; Hiromitsu Mori; Harutsugu Sodeyama; Katsumi Yoshizawa; Shiro Yokoyama; Yoshihisa Sode; Nobuyuki Kawamura; Tadaaki Miyazaki

Hemorrhage complicating simple liver cyst is rare. On imaging studies, the differential diagnosis between intracystic hemorrhage and cystadenocarcinoma of the liver is unreliable, and hepatectomy has been performed for benign liver cyst in this situation. We describe the characteristics of hemorrhage into a liver cyst in a patient who underwent dome resection of the cyst. In our patient, important diagnostic findings included benign cytologic features in a cyst fluid specimen aspirated with ultrasonographic guidance and a fall in hemoglobin and hematocrit, suggestive of hemorrhage. Other informative features were absence of communication between the intrahepatic bile ducts and the cystic liver lesion upon endoscopic retrograde cholangiopancreatography, as well as benign intraoperative frozen-section histology.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1998

Laparoscopic Splenectomy for Idiopathic Thrombocytopenic Purpura using Harmonic Scalpel and Endocutter in the Splenic Hilus.

Harutsugu Sodeyama; Kazuhiro Hanazaki; Wakabayashi M; Jun Igarashi; Shinji Nakata; Nobuyuki Kawamura; Tadaaki Miyazaki

特発性血小板減少性紫斑病10症例に腹腔鏡下脾臓摘出術を施行した.最近の5症例には, 頭側高位の右側臥位でハーモニック・スカルペル (LCS) を用いて胃脾間膜などの切離を行い, 最後にエンドカッターで脾門部を一括処理する術式を施行した.1例は出血のため開腹に移行したが, 他の4例では出血のコントロールも容易であり, 平均手術時間は1時間37分で従来の腹腔鏡下脾臓摘出術5例の平均3時間10分より有意に短時間で開腹手術と同様であった.術後経過も順調で, 重篤な合併症も経験しなかった.本術式は特発性血小板減少性紫斑病症例に対する優れた術式であると考えられた.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1997

A Case of Hepatoma with Glycogen Storage Disease Type I.

Wakabayashi M; Kazuhiro Hanazaki; Jun Igarashi; Harutsugu Sodeyama; Nobuyuki Kawamura; Tadaaki Miyazaki

糖原病I型を合併した肝癌の初回および再発に対して2回の切除を行った1例を経験したので報告する. 症例は40歳の男性. 小児期より体格は小さく, 23歳より痛風と診断されていた. 肝機能障害を指摘され来院, 腹部超音波検査, computed tomography, 血管造影で肝S3に腫瘤を認め, 空腹時血糖の低下, AFPの上昇, 肝生検組織のglucose-6-phosphataseの低下より糖原病I型に合併した肝癌と診断し肝左葉外側区域切除術を施行した. 術後7か月目に手術創部に腫瘤が出現し, computed tomographyで肝S7に腫瘤 を認めたため, 肝癌再発と診断し肝S7部分切除, 腹壁腫瘤切除を施行, また術中に大網および右副腎にも腫瘤を認めたため大網切除と横行結腸部分切除, 右副腎摘出術を施行した. 病理組織診断はいずれもhepatocellular carcinomaであった. 再手術後1年10か月を経た現在経過観察中である.


Digestive Surgery | 1997

Two Conservative Resections for a Patient with Early Gastric Cancer and Nephrotic Syndrome

Kazuhiro Hanazaki; Wakabayashi M; Harutsugu Sodeyama; Shiro Yokoyama; Yoshihisa Sode; Nobuyuki Kawamura; Tadaaki Miyazaki; Tohru Yamazaki; Ken Hayashi

Anastomotic leakage is the most common cause of postoperative mortality from gastrointestinal surgery. The nephrotic syndrome includes hypoproteinemia due to massive proteinuria, and hypoproteinemia i


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1996

Laparoscopic Splenectomy for Idiopathic Thrombocytopenic Purpura, in Comparison with Open Splenectomy.

Harutsugu Sodeyama; Susumu Asato; Kazuhiro Hanazaki; Wakabayashi M; Nobuyuki Kawamura; Tadaaki Miyazaki; Masuo Ohtsuka; Ken Hayashi

特発性血小板減少性紫斑病5例に対して腹腔鏡下脾臓摘出術を行い, 開腹下脾臓摘出術を行った10例と比較した.手術は頭側高位の右下斜め側臥位で行い, 気腹に吊り上げ法を併用し, 超音波メスやハーモニックスカルペル (LCS) を使用した.腹腔鏡下脾臓摘出術の手術時間は164~298分, 平均220±54分で開腹下手術の97±25分と比較し有意に長かった.出血量は20~400g, 平均170±180gで開腹下手術の204±212gより少ない傾向にあった.術後3日間の鎮痛剤の使用量, 術後の鎮痛剤の使用期間には差を認めなかった.腹腔鏡下脾臓摘出術では経口摂取開始が平均2.4±0.6日後, 術後入院期間が平均11.4±2.1日間で開腹下手術と比較し有意に回復が早かった.腹腔鏡下脾臓摘出術で重篤な合併症は経験しなかった.特発性血小板減少性紫斑病で脾臓摘出術の適応のある症例には腹腔鏡下脾臓摘出術を積極的に選択すべきと考える.


Gastroenterology | 2001

Familial gastrointestinal stromal tumor with hyperpigmentation: association with a germline mutation of the c-kit gene.

Hironobu Maeyama; Eiko Hidaka; Hiroyoshi Ota; Satoshi Minami; Masashi Kajiyama; Akira Kuraishi; Hiromitsu Mori; Yoshiaki Matsuda; Shuichi Wada; Harutsugu Sodeyama; Shinji Nakata; Nobuyuki Kawamura; Satoru Hata; Masahide Watanabe; Yoshihiro Iijima; Tsutomu Katsuyama


Hepato-gastroenterology | 1998

Surgery for gastric cancer in patients older than 80 years of age

Kazuhiro Hanazaki; Wakabayashi M; Harutsugu Sodeyama; Miyazawa M; Shiro Yokoyama; Sode Y; Nobuyuki Kawamura; Ohtsuka M; Tadaaki Miyazaki


Hepato-gastroenterology | 2001

Palliative gastrectomy for advanced gastric cancer

Kazuhiro Hanazaki; Harutsugu Sodeyama; Yasuhiro Mochizuki; Jun Igarashi; Shiro Yokoyama; Sode Y; Wakabayashi M; Nobuyuki Kawamura; Tadaaki Miyazaki


Hepato-gastroenterology | 1999

Post-operative chemotherapy in non-curative gastrectomy for advanced gastric cancer

Kazuhiro Hanazaki; Yasuhiro Mochizuki; Machida T; Shiro Yokoyama; Harutsugu Sodeyama; Sode Y; Wakabayashi M; Nobuyuki Kawamura; Tadaaki Miyazaki


Hepato-gastroenterology | 1997

Surgical treatment of gastric cancer detected by mass screening

Kazuhiro Hanazaki; Harutsugu Sodeyama; Wakabayashi M; Miyazawa M; Shiro Yokoyama; Sode Y; Nobuyuki Kawamura; Tadaaki Miyazaki; Ohtsuka M

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