Takao Ohtsuka

12.1k total citations · 2 hit papers
322 papers, 7.3k citations indexed

About

Takao Ohtsuka is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Takao Ohtsuka has authored 322 papers receiving a total of 7.3k indexed citations (citations by other indexed papers that have themselves been cited), including 209 papers in Oncology, 180 papers in Surgery and 120 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Takao Ohtsuka's work include Pancreatic and Hepatic Oncology Research (161 papers), Pancreatitis Pathology and Treatment (88 papers) and Gastric Cancer Management and Outcomes (51 papers). Takao Ohtsuka is often cited by papers focused on Pancreatic and Hepatic Oncology Research (161 papers), Pancreatitis Pathology and Treatment (88 papers) and Gastric Cancer Management and Outcomes (51 papers). Takao Ohtsuka collaborates with scholars based in Japan, United States and Canada. Takao Ohtsuka's co-authors include Masao Tanaka, Masafumi Nakamura, Kenoki Ohuchida, Kazuhiro Mizumoto, Shunichi Takahata, Yoshihiro Miyasaka, Yasuhiro Shimizu, Christopher L. Wolfgang, Yoshinao Oda and Roberto Salvia and has published in prestigious journals such as Journal of Biological Chemistry, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Takao Ohtsuka

297 papers receiving 7.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Revisions of international consensus Fukuoka guidelines for the management of IPMN of the pancreas

2017 1.1k citations Masao Tanaka, Takao Ohtsuka et al. Pancreatology profile →
International evidence-based Kyoto guidelines for the management of intraductal papillary mucinous neoplasm of the pancreas

2023 140 citations Takao Ohtsuka, Susumu Hijioka et al. Pancreatology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Takao Ohtsuka Japan	44	5.1k	3.6k	1.7k	1.7k	1.4k	322	7.3k
Mark Bloomston United States	43	3.4k 0.7×	2.6k 0.7×	1.6k 0.9×	2.2k 1.3×	2.1k 1.5×	159	7.5k
Aatur D. Singhi United States	43	3.9k 0.8×	2.3k 0.6×	1.1k 0.6×	1.7k 1.0×	1.3k 0.9×	225	6.8k
Sarah P. Thayer United States	44	6.4k 1.3×	4.6k 1.3×	1.8k 1.0×	2.3k 1.3×	985 0.7×	91	8.5k
Todd W. Bauer United States	48	4.1k 0.8×	3.7k 1.0×	3.0k 1.7×	1.4k 0.8×	1.1k 0.8×	185	7.1k
Benoît Terris France	45	3.5k 0.7×	2.3k 0.7×	1.2k 0.7×	2.0k 1.2×	988 0.7×	185	7.5k
Shuji Nomoto Japan	51	4.0k 0.8×	2.2k 0.6×	1.8k 1.0×	3.6k 2.1×	1.6k 1.1×	216	7.9k
Shinichi Yachida Japan	38	4.6k 0.9×	1.6k 0.4×	1.6k 0.9×	2.1k 1.2×	2.4k 1.7×	141	6.9k
Hans G. Beger Germany	33	4.3k 0.9×	2.4k 0.7×	1.3k 0.7×	1.5k 0.8×	1.1k 0.8×	76	6.1k
Lorenza Rimassa Italy	42	3.3k 0.6×	1.7k 0.5×	1.6k 0.9×	1.3k 0.7×	1.2k 0.9×	269	6.6k
Kazuhiro Mizumoto Japan	52	4.7k 0.9×	2.4k 0.7×	1.2k 0.7×	3.5k 2.0×	2.3k 1.6×	221	8.1k

Countries citing papers authored by Takao Ohtsuka

Since Specialization

Citations

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

Fields of papers citing papers by Takao Ohtsuka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takao Ohtsuka

This figure shows the co-authorship network connecting the top 25 collaborators of Takao Ohtsuka. A scholar is included among the top collaborators of Takao Ohtsuka 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 Takao Ohtsuka. Takao Ohtsuka 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

Idichi, Tetsuya, Yota Kawasaki, Yutaka Hayashi, et al.. (2025). Association between intra-tumoral microbiome and genetic alterations in intraductal papillary mucinous neoplasms of the pancreas. Pancreatology. 25(6). 905–911.

Kato, Hiroyuki, Akihiko Horiguchi, Takao Ohtsuka, et al.. (2025). Annual report of Japanese biliary tract cancer registry from 2021: Focus on the rate of R0 resection, postoperative complications, and site of lymph node metastasis. Journal of Hepato-Biliary-Pancreatic Sciences. 32(5). 339–349.

Arigami, Takaaki, Daisuke Matsushita, Masataka Shimonosono, et al.. (2024). Difference between sentinel and non‐sentinel lymph nodes in the distribution of dendritic cells and macrophages: An immunohistochemical and morphometric study using gastric regional nodes obtained in sentinel node navigation surgery for early gastric cancer. Journal of Anatomy. 246(2). 272–287. 2 indexed citations

Hirashita, Teijiro, Naoki Ikenaga, Kohei Nakata, et al.. (2024). Prognostic significance of lymph node metastasis in pancreatic tail cancer: A multicenter retrospective study. Annals of Gastroenterological Surgery. 8(4). 681–690. 1 indexed citations

Mori, Shinichiro, Yoshiaki Kita, Kenji Baba, et al.. (2024). A sutureless overlapped anastomosis technique using linear staplers with reinforced bioabsorbable material in robotic right colectomy with intracorporeal anastomosis. Colorectal Disease. 26(4). 754–759. 2 indexed citations

Nakajo, Masatoyo, Megumi Jinguji, Tetsuya Idichi, et al.. (2024). Machine learning-based prognostic modeling in gallbladder cancer using clinical data and pre-treatment [18F]-FDG-PET-radiomic features. Japanese Journal of Radiology. 43(5). 864–874.

Kawasaki, Yota, Tetsuya Idichi, Hiroshi Kurahara, et al.. (2023). Usefulness of cranio-dorsal approach for laparoscopic left lateral sectionectomy. Updates in Surgery. 75(4). 889–895. 1 indexed citations

Tanimoto, Akihide, Shiroh Tanoue, Shinichi Hashimoto, et al.. (2023). Next-Generation Sequencing Analysis of Pancreatic Cancer Using Residual Liquid Cytology Specimens from Endoscopic Ultrasound—Guided Fine-Needle Biopsy: A Prospective Comparative Study with Tissue Specimens. Diagnostics. 13(6). 1078–1078. 6 indexed citations

Ohtsuka, Takao, Masafumi Nakamura, Susumu Hijioka, et al.. (2023). Feasibility of Surveillance for Mucinous Cystic Neoplasm of the Pancreas. Pancreas. 52(5). e288–e292. 2 indexed citations

10.

Arigami, Takaaki, Yoshikazu Uenosono, Daisuke Matsushita, et al.. (2023). Clinical significance of intraperitoneal paclitaxel combined with systemic chemotherapy for gastric cancer with peritoneal metastasis. International Journal of Clinical Oncology. 28(10). 1371–1377. 5 indexed citations

11.

Nakajo, Masatoyo, Yoshiaki Shinden, Megumi Jinguji, et al.. (2023). Application of Machine Learning Analyses Using Clinical and [18F]-FDG-PET/CT Radiomic Characteristics to Predict Recurrence in Patients with Breast Cancer. Molecular Imaging and Biology. 25(5). 923–934. 6 indexed citations

12.

Okubo, Keishi, Takaaki Arigami, Daisuke Matsushita, et al.. (2021). The Clinical Significance of CA19-9 and Tumor Size Ratios for Predicting Prognosis After Conversion Surgery in Patients With Stage IV Gastric Cancer. Anticancer Research. 41(11). 5643–5649. 2 indexed citations

13.

Kawano, Takafumi, Yusuke Saito, Shun Onishi, et al.. (2021). Malignant perivascular epithelioid cell neoplasm in the liver: report of a pediatric case. SHILAP Revista de lepidopterología. 7(1). 212–212. 7 indexed citations

14.

Mori, Shinichiro, Yoshiaki Kita, Kenji Baba, et al.. (2021). Anatomical study of the inferior mesenteric vein using three-dimensional computed tomography angiography in laparoscopy-assisted surgery for left-sided colorectal cancer. Surgery Today. 51(10). 1665–1670. 6 indexed citations

15.

Nagai, Shuntaro, Kinuko Nagayoshi, Yusuke Mizuuchi, et al.. (2020). Laparoscopic spacer placement for recurrent sacral chordoma before carbon ion radiotherapy: A case report. Asian Journal of Endoscopic Surgery. 13(4). 582–585. 3 indexed citations

16.

Koikawa, Kazuhiro, Kenoki Ohuchida, Yukio Ando, et al.. (2018). Basement membrane destruction by pancreatic stellate cells leads to local invasion in pancreatic ductal adenocarcinoma. Cancer Letters. 425. 65–77. 58 indexed citations

17.

Sadakari, Yoshihiko, Shuntaro Nagai, Kinuko Nagayoshi, et al.. (2018). Application of ultrasonography to high-tie and low-tie vascular ligation of the inferior mesenteric artery in laparoscopic colorectal cancer surgery: technical notes. Surgical Endoscopy. 33(1). 309–314. 4 indexed citations

18.

Miyasaka, Yoshihiro, Yasuhisa Mori, Kohei Nakata, Takao Ohtsuka, & Masafumi Nakamura. (2017). Prophylactic Biliary and Gastrointestinal Bypass for Unresectable Pancreatic Head Cancer: A Retrospective Case Series. JOP, journal of the pancreas. 18(6). 2 indexed citations

19.

Tamura, Koji, Takao Ohtsuka, Hideyo Kimura, et al.. (2016). Treatment of pancreatic stones and a migrated pancreatic tube after pancreatoduodenectomy using a short - Type double balloon enteroscope: A case report. Acta gastro-enterologica belgica. 58(2). 114–120. 1 indexed citations

20.

Zheng, Biao, Kenoki Ohuchida, Ming Zhao, et al.. (2015). CD146 attenuation in cancer‐associated fibroblasts promotes pancreatic cancer progression. Molecular Carcinogenesis. 55(11). 1560–1572. 36 indexed citations

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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