Katsuhisa Ohgi

1.5k total citations
127 papers, 830 citations indexed

About

Katsuhisa Ohgi is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Katsuhisa Ohgi has authored 127 papers receiving a total of 830 indexed citations (citations by other indexed papers that have themselves been cited), including 87 papers in Oncology, 85 papers in Surgery and 59 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Katsuhisa Ohgi's work include Pancreatic and Hepatic Oncology Research (73 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (47 papers) and Gallbladder and Bile Duct Disorders (37 papers). Katsuhisa Ohgi is often cited by papers focused on Pancreatic and Hepatic Oncology Research (73 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (47 papers) and Gallbladder and Bile Duct Disorders (37 papers). Katsuhisa Ohgi collaborates with scholars based in Japan, Italy and Israel. Katsuhisa Ohgi's co-authors include Teiichi Sugiura, Katsuhiko Uesaka, Ryo Ashida, Yukiyasu Okamura, Takaaki Ito, Yusuke Yamamoto, Shimpei Otsuka, Takeshi Aramaki, Yusuke Yamamoto and Mihoko Yamada and has published in prestigious journals such as SHILAP Revista de lepidopterología, Annals of Surgery and Scientific Reports.

In The Last Decade

Katsuhisa Ohgi

108 papers receiving 825 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Katsuhisa Ohgi Japan 16 606 514 378 169 121 127 830
Tatsuaki Sumiyoshi Japan 16 388 0.6× 441 0.9× 311 0.8× 205 1.2× 121 1.0× 76 766
Sadaaki Yamazoe Japan 14 420 0.7× 360 0.7× 229 0.6× 160 0.9× 158 1.3× 44 706
Aoi Hayasaki Japan 12 719 1.2× 417 0.8× 375 1.0× 219 1.3× 64 0.5× 75 862
Jean M. Butte Chile 18 685 1.1× 876 1.7× 562 1.5× 184 1.1× 172 1.4× 52 1.2k
Atsushi Oba Japan 18 762 1.3× 421 0.8× 384 1.0× 211 1.2× 123 1.0× 107 948
Ioannis T. Konstantinidis United States 15 579 1.0× 673 1.3× 435 1.2× 78 0.5× 87 0.7× 28 915
Satoshi Hirooka Japan 18 700 1.2× 485 0.9× 386 1.0× 203 1.2× 34 0.3× 65 888
Berend R. Beumer Netherlands 7 616 1.0× 277 0.5× 292 0.8× 218 1.3× 61 0.5× 12 812
Yoshiro Fujii Japan 17 518 0.9× 660 1.3× 469 1.2× 142 0.8× 199 1.6× 67 945
Katsumi Amikura Japan 13 507 0.8× 506 1.0× 163 0.4× 207 1.2× 111 0.9× 59 747

Countries citing papers authored by Katsuhisa Ohgi

Since Specialization
Citations

This map shows the geographic impact of Katsuhisa Ohgi'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 Katsuhisa Ohgi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Katsuhisa Ohgi more than expected).

Fields of papers citing papers by Katsuhisa Ohgi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Katsuhisa Ohgi. 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 Katsuhisa Ohgi. The network helps show where Katsuhisa Ohgi may publish in the future.

Co-authorship network of co-authors of Katsuhisa Ohgi

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuhisa Ohgi. A scholar is included among the top collaborators of Katsuhisa Ohgi 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 Katsuhisa Ohgi. Katsuhisa Ohgi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kato, Yoshiyasu, Ryo Ashida, Katsuhisa Ohgi, et al.. (2025). Efficacy of Neoadjuvant Therapy for Resectable Pancreatic Cancer Might be Limited to Biologically Borderline Resectable Cases. Pancreas. 54(7). e630–e636.
2.
Otsuka, Shimpei, Ryo Ashida, Katsuhisa Ohgi, et al.. (2025). Prognostic Impact of Diabetes Mellitus and Extended Hepatectomy on Perihilar Cholangiocarcinoma. Annals of Surgery Open. 6(1). e552–e552. 1 indexed citations
3.
4.
Imamura, Taisuke, Ryo Ashida, Kenichi Urakami, et al.. (2024). Comprehensive sequencing of circulating tumour DNA in resectable pancreatic cancer. British journal of surgery. 111(3). 1 indexed citations
5.
Otsuka, Shimpei, Teiichi Sugiura, Ryo Ashida, et al.. (2024). Subdivision of pT1N0 (American Joint Committee on Cancer 8th edition) distal cholangiocarcinoma for adjuvant chemotherapy consideration. Journal of Hepato-Biliary-Pancreatic Sciences. 31(8). 559–568.
6.
Ohgi, Katsuhisa, Ryo Ashida, Mihoko Yamada, et al.. (2023). Efficacy of lymph node dissection for duodenal cancer according to the lymph node station. Annals of Gastroenterological Surgery. 8(1). 51–59. 3 indexed citations
7.
Ohgi, Katsuhisa, Teiichi Sugiura, Yukiyasu Okamura, et al.. (2023). Long-term adjuvant chemotherapy after resection for pancreatic cancer patients with positive peritoneal lavage cytology. Langenbeck s Archives of Surgery. 408(1). 165–165. 5 indexed citations
8.
Ashida, Ryo, Teiichi Sugiura, Katsuhisa Ohgi, et al.. (2023). Secondary Budd-Chiari syndrome occurred after adjuvant radiotherapy for perihilar cholangiocarcinoma: a case report. World Journal of Surgical Oncology. 21(1). 9–9. 1 indexed citations
9.
Ohgi, Katsuhisa, Nobuyuki Ohike, Tomoko Norose, et al.. (2023). Tumor vascularity on contrast-enhanced computed tomography as a predictive marker of metastatic potential for small nonfunctioning pancreatic neuroendocrine tumors. Surgery. 175(2). 484–490. 3 indexed citations
10.
Ashida, Ryo, Katsuhisa Ohgi, Naoki Umezaki, et al.. (2023). Acquired hemophilia A developing in the perioperative period of pancreatoduodenectomy: a report of two cases. SHILAP Revista de lepidopterología. 9(1). 75–75.
11.
Okamura, Yukiyasu, Teiichi Sugiura, Takaaki Ito, et al.. (2023). Prognostic impact of the distance from the root of splenic artery to tumor in the patients with pancreatic body or tail cancer. Pancreatology. 24(1). 100–108. 1 indexed citations
12.
Sugiura, Teiichi, Yukiyasu Okamura, Ryo Ashida, et al.. (2023). Benefit of lymph node dissection for perihilar and distal cholangiocarcinoma according to lymph node stations. Journal of Hepato-Biliary-Pancreatic Sciences. 31(4). 251–261. 5 indexed citations
13.
Ashida, Ryo, Yusuke Yamamoto, Takeshi Aramaki, et al.. (2022). Preoperative skeletal muscle fat infiltration is a strong predictor of poorer survival in gallbladder cancer underwent surgery. Clinical Nutrition ESPEN. 52. 60–67. 5 indexed citations
14.
Sugiura, Teiichi, Ryo Ashida, Katsuhisa Ohgi, et al.. (2022). Preoperative risk factors for early recurrence after resection of perihilar cholangiocarcinoma. BJS Open. 6(5). 2 indexed citations
15.
Ohgi, Katsuhisa, Teiichi Sugiura, Takaaki Ito, et al.. (2022). The prognostic impact of ABO blood type in pancreatic cancer: Relevance to adjuvant chemotherapy. Journal of Hepato-Biliary-Pancreatic Sciences. 29(8). 922–931. 3 indexed citations
16.
Ohgi, Katsuhisa, Nobuyuki Ohike, K. Tone, et al.. (2022). Clinical significance of immunocytochemical staining for peritoneal lavage cytology in pancreatic cancer. Surgery. 172(6). 1776–1781. 4 indexed citations
17.
Ohgi, Katsuhisa, Teiichi Sugiura, Yukiyasu Okamura, et al.. (2021). Changes in the body composition and nutritional status after total pancreatectomy. Langenbeck s Archives of Surgery. 406(6). 1909–1916. 2 indexed citations
18.
Sugiura, Teiichi, et al.. (2020). A Case of Splenic Sclerosing Angiomatoid Nodular Transformation. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 81(2). 360–366.
19.
20.
Ito, Takaaki, Teiichi Sugiura, Yukiyasu Okamura, et al.. (2019). The Safety and Survival Outcome of Hepatectomy with Combined Bile Duct Resection for Colorectal Liver Metastasis. World Journal of Surgery. 44(4). 1231–1243.

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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2026