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Dive into the research topics where Takanori Haba is active.

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Featured researches published by Takanori Haba.


Surgery Today | 1992

Gastric emptying after pancreatoduodenectomy with total stomach preservation and selective proximal vagotomy.

Yozo Watanabe; Hidenori Tsumura; Hideki Sakurai; Takanori Haba; Seiichi Ono; Hiroshi Aonuma

This study evaluates postoperative gastric emptying following a new method of pancreatoduodenectomy with total stomach preservation and selective proximal vagotomy performed on 10 patients with diseases affecting the head of the pancreas, 7 being malignant and 3 benign. Reconstruction was carried out using the Billroth I and Billroth II techniques in 5 patients each, respectively. Early postoperative gastric emptying was evaluated by the time before intragastric tube removal and the resumption of oral intake, as well as by barium gastric radiography, while late postoperative gastric emptying was evaluated by the acetaminophen method. No difference was seen in early postoperative gastric emptying between the two surgical techniques, the mean time which elapsed before intragastric tube removal being 4.4 days for the Billroth I and 4.5 days for the Billroth II patients, and the mean time until the resumption of oral intake being 6.8 days for the Billroth I and 7.0 days for the Billroth II patients. A significant delay in gastric emptying was seen in the Billroth II patients compared to a normal control group, 30 and 45 min after acetaminophen administration, but the difference in gastric emptying between the Billroth I and II patients was not significant. Moreover, both techniques impaired gastric emptying much less than Traversos pylorus-preserving pancreatoduodenectomy.


Digestive Endoscopy | 1998

A Case of Postbulbar Duodenal Ulcer with Jaundice

Takeo Maekawa; Kiyotaka Yabuki; Koichi Sato; Takanori Haba; Kaoru Ogawa; Michio Matsumoto

Abstract: A 63‐year‐old man was hospitalized because of jaundice and anorexia. An upper gastrointestinal series and hypotonic duodenography revealed circumferential sclerosis and stenosis of the duodenal wall. Endoscopic examination disclosed an ulcer, the upper margin of which was located at the papilla of Vater. The papilla was situated in the base of the ulcer. Endoscopic retrograde cholangiopancreatography disclosed mild dilatation of the common bile, intrahepatic bile and pancreatic ducts, but with neither severe stenosis nor occlusion. Nevertheless, there was some degree of circumferential compression and mild stenosis of the terminal portions of the bile and pancreatic ducts, as potential causes of obstructive jaundice in this patient. Computed tomographic examination of the abdomen revealed a tumorous lesion at the duodenal bulb. Because malignancy in the duodenum could not be ruled out, a pancreatoduodenectomy was performed. Histopathological examination showed a postbulbar duodenal ulcer, associated with inflammation of the papillary orifice and fibrosis of the region near the papilla. There was no evidence of a tumorous lesion. In this case, a postbulbar duodenal ulcer may have caused obstructive jaundice.


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

Long Term Follow-up Study of Selective Vagotomy with Pyloroplasty. Physiological and Morphological Studies of Gastric Endo and Exocrine System.

Koichi Sato; Takeo Maekawa; Takanori Haba; Kiyotaka Yabuki; Yoshiaki Okahara; Akira Ishiguro; Hidenori Tsumura; Yozo Watanabe

選択的迷走神経切離術兼幽門形成術後20年以上経過症例について, 胃内外分泌能の生理学的および形態学的変化を検討した.基礎および最高酸分泌量の減酸率はそれぞれ78.2%, 75.8%と, 術後早期と同じように良好に保たれていた.空腹時および肉汁エキス刺激時のガストリン値は, 術前と比較し有意に高値を示し, 高ガストリン血症を呈する症例が多く認められた.高酸群の壁細胞は術前と同じく, 細胞内分泌細管の内腔開大は認められず, microvilliの長さと数も保たれていた.これに対して, 低酸群では細胞内分泌細管の内腔開大, microvilliの長さと数の減少および配列の乱れが目立った.電顕および免疫染色によるガストリン細胞の観察ではG-cell hyperplasiaが認められ, また肉汁エキス刺激では, 基底側細胞膜にΩ 型開口分泌像を示し, 術後20年以上経過してもその反応性が十分保たれていることがわかった.


Digestive Endoscopy | 1995

A Case of Duodenal Duplication

Hiroshi Nozaki; Noboru Mizobuchi; Takanori Haba; Noburu Sakakibara

Abstract: Duplication of the duodenum is extremely rare. Including the present case, duodenal duplication in adults has been reported in only 20 cases in Japan. All previously reported cases underwent open surgery, and endoscopic resection has not previously been reported. In this report, we describe a patient in whom a duodenal duplication was endoscopically resectable, demonstrating the usefulness of endoscopic resection for the treatment of this malformation.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1992

Clinical Study on Perforated Peptic Ulcers in the Elderly.

Yozo Watanabe; Hidenori Tsumura; Toshiyuki Nakagawa; Kiyotaka Yabuki; Toshio Morimoto; Yoshiaki Okahara; Takanori Haba; Takeshi Okubo; Koichi Sato; Michihiro Orihata; Noburu Sakakibara

本論文の目的は, 70歳以上の消化性潰瘍穿孔例を詳細に分析し, その臨床的特徴を明らかにすることにある.対象は1966年から1990年までに, 順天堂大学で手術が施行された消化性潰瘍穿孔192例で, うち70歳以上の高齢者は20例であった.方法は全例を年代別, 年齢別に検討し70歳以上の症例については, 患者背景, 術前併存疾患, 臨床所見, 治療, 病理学的所見および死亡例について検討した.最近の10年間で70歳以上の症例は有意に増加し, 穿孔症例の年代別平均年齢は年々高くなっている.70歳以上の穿孔例20例のうち十二指腸潰瘍は16例と多くを占めていた.潰瘍の既往歴の無い例は14例で, 術前併存疾患合併率は85%であった.病理学的には急性潰瘍型が11例であった. 手術は単純閉鎖術が2例のみで他は根治手術が行われ, 手術死亡は4例であった.高齢老の穿孔例は, 既往歴の無い例が多く, 病状が刻々変化するので, 画像診断を駆使して早期に診断すべきである.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1988

Pathophysiological studies of anastomotic ulcer caused by retained gastric antrum.

Koichi Sato; Yozo Watanabe; Hidenori Tsumura; Takanori Haba; Akio Nohmi; Hiroshi Sasaki; Takeshi Ohkubo; Kiyotaka Yabuki; Toshio Morimoto; Yasuhiro Ishii; Ryuji Momose; Kisaburo Yagasaki; Michihiro Orihata; Yoshiaki Okahara; Seiichi Ono; Noburu Sakakibara

教室で経験した胃切除後吻合部潰瘍26例を幽門粘膜空置群5例, 幽門腺 (+) 群5例および幽門腺 (-) 群16例に分けて検討した.幽門粘膜空置群の原疾患は全例十二指腸潰瘍であり, そのBAO, BAO/MAO比, basal gastrin値およびI-IGRは他の2群と比較して高値を示し, BAO/MAO比では, 他の2群との間に, basal gastrin値では, 幽門腺 (-) 群との間に有意差 (p<0.05) が認められた.以上のことより, 吻合部潰瘍症例において, 原疾患が十二指腸潰瘍で, かつBillroth II法吻合による胃切除術後で, BAO, BAO/MAO比, basal gastrin値およびI-IGRが高値を示す症例は幽門粘膜空置による吻合部潰瘍を強く疑う必要があると考えられた.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1984

Reapprasal of a current therapy for bleeding gastroduodenal ulcer.

Yozo Watanabe; Hidenori Tsumura; Kazuo Kojima; Toshinobu Kawashima; Takeshi Kudo; Takanori Haba; Akio Nomi; Hiroshi Sasaki; Tsuyoshi Ookubo; Kiyotaka Yabuki; Koiichi Sato; Toshio Morimoto; Tsutomu Kidokoro

本研究の目的は, われわれがこれまで出血性潰瘍に対して行ってきた保存療法と外科療法の成績を分析し, その治療方針を再検討することにある. 対象は慢性出血性潰瘍152例とストレス潰瘍を含むAGML54例である. 保存療法のうちH2受容体拮抗剤による間欠静注法の止血効果は, 軽症あるいは中等症の出血例に対しては80%以上の有効率であったが, 重症出血例に対しては30~50%と低い有効率であった. これらの無効例のうちAGMLの重症出血例に対しては, secretin 2U/kg/hの持続点滴法が有効であった. これら保存療法と内視鏡的止血法の組合わせにより, 外科療法の適応は, AGMLの重症出血の一部の例や, 穿孔あるいは狭窄をともなう慢性出血性潰瘍など限られてくる.


Journal of Surgical Research | 1996

Role of Kupffer Cells in the Induction of Tolerance after Liver Transplantation

Koichi Sato; Kiyotaka Yabuki; Takanori Haba; Takeo Maekawa


Progress of Digestive Endoscopy(1972) | 1994

A Case of Rendu-Osler-Weber Disease with Bleeding from Mucosal Telangiectasia of the Stomach Treated by Endoscopic Hemostasis Using Clip

Yoshimi Iwanuma; Takanori Haba; Takeo Maekawa


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1987

Evaluation of severity of diabetes mellitus based on preoperative and postoperative complications.

Akio Nomi; Yozo Watanabe; Michihiro Orihata; Kisaburo Yagasaki; Ryuzi Momose; Yasuhiro Ishii; Toshio Morimoto; Koichi Sato; Tsuyoshi Okubo; Hiroshi Sasaki; Kiyotaka Yabuki; Takanori Haba; Toshinobu Kawashima; Hidenori Tsumura; Keiichiro Kondo; Tsutomu Kidokoro

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