Ryoga Hamura

499 total citations
62 papers, 313 citations indexed

About

Ryoga Hamura is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryoga Hamura has authored 62 papers receiving a total of 313 indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Oncology, 35 papers in Surgery and 18 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryoga Hamura's work include Pancreatic and Hepatic Oncology Research (28 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (13 papers) and Inflammatory Biomarkers in Disease Prognosis (12 papers). Ryoga Hamura is often cited by papers focused on Pancreatic and Hepatic Oncology Research (28 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (13 papers) and Inflammatory Biomarkers in Disease Prognosis (12 papers). Ryoga Hamura collaborates with scholars based in Japan. Ryoga Hamura's co-authors include Kenei Furukawa, Koichiro Haruki, Yoshihiro Shirai, Toru Ikegami, Takeshi Gocho, Shinji Onda, Tomohiko Taniai, Hiroaki Shiba, Katsuhiko Yanaga and Jungo Yasuda and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Carcinogenesis.

In The Last Decade

Ryoga Hamura

52 papers receiving 311 citations

Peers

Countries citing papers authored by Ryoga Hamura

Since Specialization

Citations

This map shows the geographic impact of Ryoga Hamura's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryoga Hamura with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoga Hamura more than expected).

Fields of papers citing papers by Ryoga Hamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryoga Hamura. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryoga Hamura. The network helps show where Ryoga Hamura may publish in the future.

Co-authorship network of co-authors of Ryoga Hamura

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoga Hamura. A scholar is included among the top collaborators of Ryoga Hamura based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryoga Hamura. Ryoga Hamura is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	ASO Visual Abstract: ARID4B Promotes the Progression of Hepatocellular Carcinoma Through the PI3K/AKT Pathway 2025 ·Annals of Surgical Oncology ·(unknown), Mitsuru Yanagaki, (unknown), Koichiro Haruki, (unknown), Tomohiko Taniai, Shinji Onda, Ryoga Hamura, Masashi Tsunematsu, Yoshihiro Shirai, Michinori Matsumoto, Masayuki Shimoda, Toru Ikegami	0
2	The preoperative cachexia index predicts outcomes after pancreatic resection for resectable pancreatic cancer 2025 ·Surgery Today ·Ryoga Hamura, Yoshihiro Shirai, Masashi Tsunematsu, (unknown), (unknown), Koichiro Haruki, (unknown), (unknown), Kenei Furukawa, Michinori Matsumoto, Shinji Onda, Tadashi Uwagawa, Toru Ikegami	0
3	Timing of TS1 adjuvant chemotherapy as a prognostic factor in recurrent pancreatic cancer after surgery 2024 ·Surgical Oncology ·(unknown), Kenei Furukawa, (unknown), (unknown), Masashi Tsunematsu, Ryoga Hamura, Yoshihiro Shirai, Koichiro Haruki, Shuichi Fujioka, Toru Ikegami	2
4	Successful laparoscopic resection for giant mature cystic teratoma of the pancreas: a case report and surgical refinements 2024 ·Surgical Case Reports ·(unknown), Masashi Tsunematsu, (unknown), Ryoga Hamura, (unknown), (unknown), Takashi Horiuchi, (unknown), (unknown), Shinji Onda	0
5	Superior mesenteric vein/portal vein contact in preoperative imaging indicates biological malignancy in anatomically resectable pancreatic cancer 2023 ·Surgical Oncology ·Yoshihiro Shirai, Shinji Onda, (unknown), Ryoga Hamura, Michinori Matsumoto, Mitsuru Yanagaki, Masashi Tsunematsu, Tomohiko Taniai, (unknown), Kenei Furukawa, (unknown), Taro Sakamoto, Takeshi Gocho, Tadashi Uwagawa, Toru Ikegami	1
6	Preoperative Therapy for Unresectable Locally Advanced Pancreatic Cancer for ≥6 Months Improves Prognosis After Pancreatectomy 2023 ·Anticancer Research ·Michinori Matsumoto, Yoshihiro Shirai, Tadashi Uwagawa, Masashi Tsunematsu, (unknown), (unknown), (unknown), Shinji Onda, (unknown), Koichiro Haruki, Ryoga Hamura, (unknown), Toru Ikegami	1
7	The Japanese 5-5-500 Rule Predicts Prognosis of Hepatocellular Carcinoma After Hepatic Resection 2023 ·Anticancer Research ·(unknown), Koichiro Haruki, Tomohiko Taniai, Kenei Furukawa, Takashi Horiuchi, Shinji Onda, Mitsuru Yanagaki, Yoshihiro Shirai, Ryoga Hamura, Toru Ikegami	3
8	The Gastrohepatic Ligament Approach Using Multiple Traction Tapes in Laparoscopic Spleen-Preserving Distal Pancreatectomy with Preservation of Splenic Vessels (with Video) 2023 ·Annals of Surgical Oncology ·Masashi Tsunematsu, Shinji Onda, Ryoga Hamura, Takashi Horiuchi, Yoshihiro Shirai, Toru Ikegami	0
9	Conversion surgery for undifferentiated carcinoma with osteoclast-like giant cells of the pancreas: a case report 2022 ·SHILAP Revista de lepidopterología ·(unknown), Takeshi Gocho, Tomohiko Taniai, Tadashi Uwagawa, Ryoga Hamura, Yoshihiro Shirai, Jungo Yasuda, Koichiro Haruki, Kenei Furukawa, Toru Ikegami	5
10	Effects of an enteral nutrient-rich therapy with omega-3 fatty acids in patients with unresectable or recurrent biliary tract cancer or pancreatic cancer during chemotherapy: a case–control study 2022 ·Medical Oncology ·(unknown), Tadashi Uwagawa, Ryoga Hamura, Yoshihiro Shirai, Jungo Yasuda, Kenei Furukawa, Hironori Shiozaki, Shinji Onda, (unknown), Toru Ikegami	5
11	Safe perioperative management of major hepatectomy in a patient with portal hypertension after elimination of hepatitis C: a case report 2022 ·SHILAP Revista de lepidopterología ·Ryoga Hamura, Shinji Onda, Yoshihiro Shirai, Jungo Yasuda, Koichiro Haruki, Kenei Furukawa, Taro Sakamoto, Takeshi Gocho, Toru Ikegami	0
12	The impact of S-1 for the patient with lymph nodal metastasis biliary tract cancer as adjuvant chemotherapy: a multicenter database analysis 2022 ·International Journal of Clinical Oncology ·Ryoga Hamura, Koichiro Haruki, Tomohiko Taniai, Mitsuru Yanagaki, Yoshihiro Shirai, Kenei Furukawa, (unknown), (unknown), (unknown), Yukio Nakabayashi, Tadashi Uwagawa, Toru Ikegami	3
13	Ischemic small bowel perforation caused by cholesterol crystal embolism following transcatheter arterial chemoembolization for recurrent hepatocellular carcinoma: a case report 2021 ·SHILAP Revista de lepidopterología ·Ryoga Hamura, Koichiro Haruki, Ryota Iwase, Kenei Furukawa, Yoshihiro Shirai, Shinji Onda, Takeshi Gocho, Toru Ikegami	2
14	Effectiveness of Anatomical Resection for Small Hepatocellular Carcinoma: a Propensity Score–Matched Analysis of a Multi-institutional Database 2021 ·Journal of Gastrointestinal Surgery ·Koichiro Haruki, Kenei Furukawa, Yuki Fujiwara, Tomohiko Taniai, Ryoga Hamura, Yoshihiro Shirai, Jungo Yasuda, Hironori Shiozaki, Shinji Onda, Takeshi Gocho, Hiroaki Shiba, (unknown), Yukio Nakabayashi, Shuichi Fujioka, Tomoyoshi Okamoto, Toru Ikegami	15
15	Proposal for a revised system for classifying difficulty of laparoscopic partial liver resection 2021 ·Langenbeck s Archives of Surgery ·Shinji Onda, Kenei Furukawa, Koichiro Haruki, Jungo Yasuda, Yoshihiro Shirai, Ryoga Hamura, Hironori Shiozaki, Takeshi Gocho, (unknown), Toru Ikegami	4
16	Endovascular micro-arterial stenting for arterial pseudoaneurysm after pancreatic surgery 2020 ·Surgery Today ·Yoshihiro Shirai, Kenei Furukawa, Hirokazu Ashida, Takeshi Gocho, Shinji Onda, Ryoga Hamura, Shunsuke Nakashima, Hiroya Ojiri, Toru Ikegami	4
17	Gastric calcifying fibrous tumor suspected to be complicated with immunoglobulin G4-related disease treated by laparoscopy and endoscopy cooperative surgery: a case report 2019 ·SHILAP Revista de lepidopterología ·Ryoga Hamura, (unknown), (unknown), Takeshi Kawamura, (unknown), Katsuhiko Yanaga	6
18	Combination of Distance from Superior Mesenteric Artery and Serum CA19-9 as a Novel Prediction of Local Recurrence in Patients With Pancreatic Cancer Following Resection 2019 ·Anticancer Research ·(unknown), Yuki Fujiwara, Ryoga Hamura, Koichiro Haruki, Taro Sakamoto, Hiroaki Shiba, Katsuhiko Yanaga	6
19	Prognostic Factors in Patients With Recurrent Pancreatic Cancer: A Multicenter Database Analysis 2019 ·Anticancer Research ·Kenei Furukawa, Hiroaki Shiba, Ryoga Hamura, Koichiro Haruki, Yuki Fujiwara, (unknown), Yukio Nakabayashi, Takeyuki Misawa, Tomoyoshi Okamoto, Katsuhiko Yanaga	8
20	Spontaneous biliary peritonitis with common bile duct stones: report of a case 2016 ·Surgical Case Reports ·Ryoga Hamura, Koichiro Haruki, Jun’ya Tsutsumi, (unknown), Hiroaki Shiba, Katsuhiko Yanaga	5

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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