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Dive into the research topics where Hitoshi Satomura is active.

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Featured researches published by Hitoshi Satomura.


International Surgery | 2014

Salvage Lymphadenectomy for Recurrent Esophageal Cancer After Chemoradiotherapy

Masanobu Nakajima; Yasushi Domeki; Hitoshi Satomura; Masakazu Takahashi; Akira Sugawara; Hiroto Muroi; Kinro Sasaki; Satoru Yamaguchi; Tatsuya Miyazaki; Hiroyuki Kuwano; Hiroyuki Kato

Although salvage esophagectomies are widely performed, reports on salvage lymphadenectomy (SL) are few. We review our SL cases to clarify the indications. Fifty-five patients with esophageal cancer underwent chemoradiotherapy or radiotherapy, including 3 patients with single lymph node (LN) recurrences and one with allochronic double cervical node recurrence. Our department removed 5 recurrent LNs from these 4 patients. In Case 1, right supraclavicular LN was judged to be metastatic and R0 resection was carried out; he is alive without recurrence. In Case 2, we found, allochronically, metastases in his left cervical paraesophageal LN and left supraclavicular LN; residual tumors were R1 in both lesions. He is alive despite esophageal recurrence. In Case 3, a lymphadenectomy was performed on his thoracic para-aortic LN; however, tumor was removed incompletely, and he died 4 months after SL from disease progression. In Case 4, a subcarinal LN was thought to be metastatic, and was removed but no malignant tissues detected. He died 17 months after SL from pneumonia. Our experiences suggest that some patients survive relatively long with SL. Moreover, molecular examination of resected lesions could guide subsequent therapies. SL might be more widely used for these patients if not otherwise contraindicated.


World Journal of Gastroenterology | 2015

Gastrojejunostomy for pyloric stenosis after acute gastric dilatation due to overeating

Akiharu Kimura; Norihiro Masuda; Norihiro Haga; Tomokazu Ito; Kichirou Otsuka; Jyunko Takita; Hitoshi Satomura; Yuji Kumakura; Hiroyuki Kato; Hiroyuki Kuwano

A 34-year-old woman presented at our hospital with abdominal distention due to overeating. Acute gastric dilatation was diagnosed. The patient was hospitalized, and nasogastric decompression was initiated. On hospitalization day 3, she developed shock, and her respiratory state deteriorated, requiring intubation and mechanical ventilation. Nasogastric decompression contributed to the improvement in her clinical condition. She was discharged 3 mo after admission. During outpatient follow-up, her dietary intake decreased, and her body weight gradually decreased by 14 kg. An upper gastrointestinal series and endoscopy revealed pyloric stenosis; therefore, we performed gastrojejunostomy 18 mo after her initial admission. The patient was discharged from the hospital with no postoperative complications. Gastric necrosis and perforation due to overeating-induced gastric dilatation are life-threatening conditions. Surgical intervention may be required if delayed pyloric stenosis occurs after conservative treatment. We report a case of pyloric stenosis due to overeating-induced gastric dilatation treated by gastrojejunostomy 18 mo after the initial presentation.


International Surgery | 2015

Phase I Dose-Escalation Study of Docetaxel, Cisplatin, and 5-Fluorouracil Combination Chemotherapy in Patients With Advanced Esophageal Carcinoma.

Hitoshi Satomura; Masanobu Nakajima; Kinro Sasaki; Satoru Yamaguchi; Yasushi Domeki; Masakazu Takahashi; Hiroto Muroi; Tsukasa Kubo; Maiko Kikuchi; Haruka Otomo; Keisuke Ihara; Hiroyuki Kato

A dose-escalation study of docetaxel (DOC), cisplatin (CDDP), and 5-fluorouracil (5-FU; DCF combination regimen) was performed to determine the maximum-tolerated dose (MTD), recommended dose (RD) and dose-limiting toxicities (DLT) in advanced esophageal carcinoma. Eighteen patients with esophageal carcinoma were enrolled and received DCF combination therapy at different dose levels. DLTs included febrile neutropenia and oral mucositis. DLT occurred in 2 out of 6 patients at level 2 and 3. The study proceeded to level 4, according to the protocol. The level 4 dose was defined as the MTD and the level 3 dose was defined as the RD. The RD for DCF combination chemotherapy for advanced esophageal carcinoma in the present study was 70 mg/m(2) DOC plus 70 mg/m(2) CDDP on day 1 plus 700 mg/m(2) 5-FU on days 1-5 at 4-week intervals. This regimen was tolerable and highly active. A phase II study has been started.


Digestive Surgery | 2014

Effectiveness of sternocleidomastoid flap repair for cervical anastomotic leakage after esophageal reconstruction.

Masanobu Nakajima; Hitoshi Satomura; Masakazu Takahashi; Hiroto Muroi; Hiroyuki Kuwano; Hiroyuki Kato

Background/Aims: The purpose of this study was to investigate the effectiveness of sternocleidomastoid (SCM) flap repair for anastomotic leakage after esophagectomy. Methods: A refractory cutaneous fistula from the gastric stump developed in 8 patients with esophageal cancer who underwent esophagogastric anastomosis after esophagectomy. All patients underwent SCM flap repair. The cutaneous fistula was removed and resutured. The sternal head of the left SCM was dissected from the manubrium of the sternum and sutured onto the repaired gastric stump. Results: The operative duration was 80-220 min (median, 120 min). The amount of intraoperative bleeding ranged from 5 to 182 g (median, 15 g). The absence of recurrent anastomotic leakage was confirmed after the SCM flap repair in every patient. Oral intake was initiated 7-15 days (median, 10 days) after the repair operation without discomfort. Conclusions: SCM flap repair is an effective and minimally invasive treatment method for cervical anastomotic leakage after esophageal reconstruction. This method may be considered in patients with refractory leakage of the gastric stump after staple anastomosis. i 2014 S. Karger AG, Basel


International Surgery | 2015

Effectiveness of proton beam therapy on liver metastases of esophageal cancer: report of a case.

Hiroto Muroi; Masanobu Nakajima; Hitoshi Satomura; Masakazu Takahashi; Yasushi Domeki; M. Murakami; Tatsuya Nakamura; Akinori Takada; Hiroyuki Kato

A 53-year-old man with multiple liver metastasis of esophageal cancer underwent four courses of chemotherapy. After four courses of chemotherapy, positron emission tomography showed progressive disease. Because it was difficult to control the cancer only by chemotherapy, we performed proton beam therapy (PBT) combined with chemotherapy. The irradiated parts were the primary tumor, liver metastases (S2/S4/S6), and mediastinal lymph nodes. The primary tumor including the mediastinal lymph nodes and the S2/S4/S6 metastases received proton beam irradiation at a total dose of 68.2 Gy in 31 fractions and 66.0 Gy in 30 fractions, respectively, according to tumor location. This resulted in a complete response as shown by positron emission tomography. In our experience, PBT exerted a curative effect on liver metastases of esophageal cancer. It is thought that PBT may be effective in the treatment of esophageal cancer. This is the first report about PBT for liver metastases of esophageal cancer.


Anticancer Research | 2014

Can Expression of CXCL12 and CXCR4 Be Used to Predict Survival of Gastric Cancer Patients

Hitoshi Satomura; Kinro Sasaki; Masanobu Nakajima; Satoru Yamaguchi; Shinichi Onodera; Kichiro Otsuka; Masakazu Takahashi; Hiroto Muroi; Yosuke Shida; Hideo Ogata; Kentaro Okamoto; Hiroyuki Kato


Medical Oncology | 2017

Validity of neoadjuvant chemotherapy with docetaxel, cisplatin, and S-1 for resectable locally advanced gastric cancer

Kinro Sasaki; Shinichi Onodera; Kichiro Otsuka; Hitoshi Satomura; Eigo Kurayama; Tsukasa Kubo; Masakazu Takahashi; Jun Ito; Masanobu Nakajima; Satoru Yamaguchi; Kazuhito Miyachi; Hiroyuki Kato


Anticancer Research | 2015

Low PHLDA3 Expression in Oesophageal Squamous Cell Carcinomas Is Associated with Poor Prognosis

Hiroto Muroi; Masanobu Nakajima; Hitoshi Satomura; Masakazu Takahashi; Satoru Yamaguchi; Kinro Sasaki; Takehiko Yokobori; Tatsuya Miyazaki; Hiroyuki Kuwano; Hiroyuki Kato


in Vivo | 2016

Effective Mediastinal Lymphadenectomy for Esophageal Cancer Using Slender Tracheal Forceps in Prone Position Thoracoscopic Esophagectomy

Masanobu Nakajima; Masakazu Takahashi; Yasushi Domeki; Hitoshi Satomura; Hiroto Muroi; Maiko Kikuchi; Hideo Ogata; Satoru Yamaguchi; Kinro Sasaki; Makoto Sakai; Makoto Sohda; Tatsuya Miyazaki; Hiroyuki Kuwano; Hiroyuki Kato


World Journal of Surgery | 2015

Long-Term Comparison of Boomerang-Shaped Jejunal Interposition and Billroth-I Reconstruction After Distal Gastrectomy

Kinro Sasaki; Kazuhito Miyachi; Norihito Yoda; Shinichi Onodera; Hitoshi Satomura; Kichiro Otsuka; Masanobu Nakajima; Satoru Yamaguchi; Masakatsu Sunagawa; Hiroyuki Kato

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Hiroto Muroi

Dokkyo Medical University

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Kinro Sasaki

Dokkyo Medical University

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Yasushi Domeki

Dokkyo Medical University

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Kichiro Otsuka

Dokkyo Medical University

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