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Koji Amaya

Observed names: Amaya, Koji, K Amaya, Koji AMAYA
ORCID: 0000-0002-3615-586X
Observed ORCID: 0000-0002-3615-586X
OpenAlex ID: A5055849971
Angiotensin II activates MAP kinase and NF-kappaB through angiotensin II type I receptor in human pancreatic cancer cells.
2004 · Koji Amaya, Tetsuo Ohta, et al. · PubMed · 62
A multicenter prospective registration study on laparoscopic pancreatectomy in Japan: report on the assessment of 1,429 patients
2019 · Takao Ohtsuka, Yuichi Nagakawa, et al. · Journal of Hepato-Biliary-Pancreatic Sciences · 31
Comparison of three fistula risk scores after pancreatoduodenectomy: A single-institution retrospective study
2020 · Hironori Hayashi, Koji Amaya, et al. · Asian Journal of Surgery · 19
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Sclerosing mesenteritis mimicking metachronous peritoneal metastases from descending colon adenocarcinoma
2017 · Toshifumi Watanabe, Shiro Terai, et al. · World Journal of Surgical Oncology · 10
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Hybrid Laparoscopic and Anterior Approach for Postsurgical Inguinal Hernia After Iliofemoral Arterial Bypass
2015 · Tomoya Tsukada, Hiroto Saito, et al. · International Surgery · 9
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A case of pancreatic cancer with formation of a mass mimicking alcoholic or autoimmune pancreatitis in a young man. Possibility of diagnosis by hypermethylation of pure pancreatic juice.
2008 · Koushiro Ohtsubo, Hiroyuki Watanabe, et al. · PubMed · 9
Superior Mesenteric Artery–Pancreaticoduodenal Arcade Bypass Grafting for Repair of Inferior Pancreaticoduodenal Artery Aneurysm with Celiac Axis Occlusion
2018 · Akira Murata, Koji Amaya, et al. · Annals of Vascular Diseases · 3
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Single-incision laparoscopic appendectomy for treating appendicitis in a patient with gastrointestinal malrotation
2014 · Tomoya Tsukada, Masahide Kaji, et al. · International Journal of Surgery Case Reports · 3
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The Clinicopathological Characteristics and Prognosis of Cholangiolocarcinoma: A Multicenter Study With a Central Pathology Review
2026 · Takamichi Ishii, Kenta Makino, et al. · Journal of Hepato-Biliary-Pancreatic Sciences · 2
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Clinical features of patients with pancreatic ductal adenocarcinoma with a history of other primary malignancies: A retrospective analysis
2021 · Hironori Hayashi, Koji Amaya, et al. · Molecular and Clinical Oncology · 2
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A case of Ruptured Cystic Artery Pseudoaneurysm due to Acute Cholecystitis
2016 · Akira Nakayama, Seiichi Yamamoto, et al. · Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons) · 2
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[A Case of Ascending Colon Cancer with Extra Iliac Lymph Node Metastases].
2015 · Itsuro Terada, Siro Terai, et al. · PubMed · 2
A Case of Gastrointestinal Stromal Tumor of the Stomach with Lymph Node Metastasis Treated with Laparoscopic and Endoscopic Cooperative Surgery
2014 · Jun Kinoshita, Masahide Kaji, et al. · Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons) · 2
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Current Status of Surgical Site Infection after Gastroenterological Surgery
2002 · Koji AMAYA, Itasu NINOMIYA, et al. · Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons) · 2
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Prognostic Impact of Pancreatic Body/Tail Cancer Involving the Portal Vein: A Project Study of the Japanese Society of Hepato‐Biliary‐Pancreatic Surgery
2025 · Yusuke Yamamoto, Teiichi Sugiura, et al. · Journal of Hepato-Biliary-Pancreatic Sciences · 1
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Use of the Staple Line Reinforcement Tool to Reduce the Rate and Completely Avoid Anastomotic Leakage in Functional End-to-End Anastomosis
2024 · Atsushi Hirose, Masahiro Hada, et al. · Cureus · 1
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Proposal of nomograms to predict clinical outcomes in patients with ampulla of Vater cancer based on the Korea‐Japan collaborative study
2022 · Hyung Sun Kim, Woojin Kim, et al. · Journal of Hepato-Biliary-Pancreatic Sciences · 1
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Ruptured anaplastic carcinoma of the pancreas with intraabdominal hemorrhage
2022 · Kohei TAKANAGA, Hironori HAYASHI, et al. · Suizo · 1
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[Laparoscopy Assisted Subtotal Gastrectomy(BillrothⅠ Reconstruction)for Gastric Cancer in the Upper Stomach-A Report of Three Cases].
2021 · Takahisa Yamaguchi, Jun Kinoshita, et al. · PubMed · 1
[A Case of a Huge Gastrointestinal Stromal Tumor with Extraluminal Growth Arising in the Small Intestine Diagnosed as an Ovarian Tumor].
2020 · Makoto Nakura, Atsushi Hirose, et al. · PubMed · 1
Intraductal Dissemination of Bile Duct Carcinoma with Pancreaticobiliary Maljunction in the Pancreatic Duct after Pancreatoduodenectomy
2017 · Yuki Higashi, Koichi Shimizu, et al. · 日本消化器外科学会雑誌 · 1
[A Case of Simultaneous Laparoscopic Resection of Sigmoid Colon Cancer and Liver Metastases after Chemotherapy with Modified FOLFOX6 plus Panitumumab].
2015 · Itsuro Terada, Koji Amaya, et al. · PubMed · 1
Laparoscopic Treatment of a Parastomal Hernia Using the Mesh-Lap-Sugarbaker Method—A Case Report—
2014 · Toru WATANABE, Itsuro TERADA, et al. · Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) · 1
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[Four cases of multiple liver metastasis of colorectal cancer treated with hepatic resection after chemotherapy].
2001 · K Amaya, G Nishimura, et al. · PubMed · 1
Use of an Oral Nutritional Supplement Containing Calcium Beta-Hydroxy-Beta-Methylbutyrate (CaHMB), L-arginine, and L-glutamine May Have Helped Avoid Surgery That Could Have Led to Short Bowel Syndrome: A Case Report
2026 · Atsushi Hirose, Tomoya Tsukada, et al. · Cureus
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Works count: 40
Citation count: 168
H-index: 6
I10-index: 4
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