Keisuke Okamura

1.9k total citations
150 papers, 1.3k citations indexed

About

Keisuke Okamura is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Keisuke Okamura has authored 150 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 87 papers in Surgery, 63 papers in Pulmonary and Respiratory Medicine and 59 papers in Oncology. Recurrent topics in Keisuke Okamura's work include Pancreatic and Hepatic Oncology Research (47 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (33 papers) and Gallbladder and Bile Duct Disorders (30 papers). Keisuke Okamura is often cited by papers focused on Pancreatic and Hepatic Oncology Research (47 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (33 papers) and Gallbladder and Bile Duct Disorders (30 papers). Keisuke Okamura collaborates with scholars based in Japan, United States and Netherlands. Keisuke Okamura's co-authors include Satoshi Hirano, Takahiro Tsuchikawa, Toshiaki Shichinohe, Takehiro Noji, Toru Nakamura, Yoshitsugu Nakanishi, Toshimichi Asano, Kimitaka Tanaka, Yuma Ebihara and Soichi Murakami and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and PLoS ONE.

In The Last Decade

Keisuke Okamura

135 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Keisuke Okamura Japan	20	764	641	589	150	132	150	1.3k
Marta Sandini Italy	23	759 1.0×	810 1.3×	383 0.7×	185 1.2×	161 1.2×	67	1.3k
Dan Ionuț Gheonea Romania	19	600 0.8×	727 1.1×	356 0.6×	270 1.8×	42 0.3×	113	1.4k
Marco Caricato Italy	23	638 0.8×	729 1.1×	350 0.6×	58 0.4×	51 0.4×	92	1.3k
Giulia Zamboni Italy	18	416 0.5×	493 0.8×	210 0.4×	400 2.7×	81 0.6×	55	1.1k
Wang Cai China	12	791 1.0×	244 0.4×	437 0.7×	101 0.7×	43 0.3×	27	1.1k
Hong Jun Park South Korea	19	484 0.6×	250 0.4×	295 0.5×	379 2.5×	54 0.4×	55	1.2k
Mario Masrur United States	20	847 1.1×	181 0.3×	414 0.7×	63 0.4×	120 0.9×	97	1.1k
Ch. Herfarth Germany	17	662 0.9×	353 0.6×	272 0.5×	106 0.7×	57 0.4×	88	1.1k
Audrius Dulskas Lithuania	18	726 1.0×	687 1.1×	227 0.4×	58 0.4×	105 0.8×	108	1.2k
Ryo Shimoda Japan	24	787 1.0×	247 0.4×	569 1.0×	113 0.8×	68 0.5×	74	1.4k

Countries citing papers authored by Keisuke Okamura

Since Specialization

Citations

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

Fields of papers citing papers by Keisuke Okamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keisuke Okamura

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

Okamura, Keisuke, et al.. (2024). Addition of Sacubitril/Valsartan to Mineralocorticoid Receptor Antagonist Therapy in Primary Aldosteronism: Effects on Plasma Aldosterone Concentration and Plasma Renin Activity. Journal of Clinical Medicine Research. 16(10). 509–517.

Ogoyama, Yukako, Makiko Abe, Keisuke Okamura, et al.. (2024). Effects of renal denervation on blood pressure in patients with hypertension: a latest systematic review and meta-analysis of randomized sham-controlled trials. Hypertension Research. 47(10). 2745–2759. 9 indexed citations

Tsuchikawa, Takahiro, Satoshi Takeuchi, Kimitaka Tanaka, et al.. (2021). Long-term survival after repetitive lymphadenectomy for nodal recurrence of pancreatic neuroendocrine neoplasms: a report of two cases. Journal of Surgical Case Reports. 2021(10). rjab446–rjab446.

Nakanishi, Yoshitsugu, Satoshi Hirano, Keisuke Okamura, et al.. (2021). Clinical and oncological benefits of left hepatectomy for Bismuth type I/II perihilar cholangiocarcinoma. Surgery Today. 52(5). 844–852. 6 indexed citations

Asano, Toshimichi, Toru Nakamura, Takehiro Noji, et al.. (2020). Outcomes of limited resection for patients with intraductal papillary mucinous neoplasm of the pancreas: A single-center experience. Pancreatology. 20(7). 1399–1405. 5 indexed citations

Saito, Takahiro, Yuma Ebihara, Liming Li, et al.. (2020). A novel laparoscopic near-infrared fluorescence spectrum system for photodynamic diagnosis of peritoneal dissemination in pancreatic cancer. Photodiagnosis and Photodynamic Therapy. 33. 102157–102157. 6 indexed citations

Nakamura, Toru, Toshimichi Asano, Keisuke Okamura, et al.. (2020). Predicting the Outcomes of Postoperative Pancreatic Fistula After Pancreatoduodenectomy Using Prophylactic Drain Contrast Imaging. Journal of Gastrointestinal Surgery. 25(6). 1445–1450. 2 indexed citations

Sato, Osamu, Takahiro Tsuchikawa, Tōru Yamada, et al.. (2019). Metastatic mixed adenoneuroendocrine carcinoma of the liver successfully resected by hepatic trisectionectomy following chemotherapy: A case report. SHILAP Revista de lepidopterología. 7(3). 491–496. 6 indexed citations

Miyazaki, Motoyasu, Akio Nakashima, Yoshihiko Nakamura, et al.. (2018). Association between medication adherence and illness perceptions in atrial fibrillation patients treated with direct oral anticoagulants: An observational cross-sectional pilot study. PLoS ONE. 13(9). e0204814–e0204814. 43 indexed citations

10.

Homma, Akihiro, Kimitaka Tanaka, Yoshitsugu Nakanishi, et al.. (2018). The surgical outcome of minimally invasive pharyngo-laryngo-oesophagectomy in prone position. Journal of Minimal Access Surgery. 15(2). 98–98. 1 indexed citations

11.

Okamura, Keisuke. (2015). Antihypertensive Effect and Safety of a Candesartan/Hydrochlorothiazide Combination in Patients with Uncontrolled Hypertension: A Prospective Multicenter Observational Study （Chikushi Anti –Hypertension Trial –Ecard(R): CHAT– E Study）. 36(5). 439–448. 2 indexed citations

12.

Ebihara, Yuma, Keita Sakamoto, Noriyuki Miyamoto, et al.. (2015). Strategic Approach to the Splenic Artery in Laparoscopic Spleen-preserving Distal Pancreatectomy. Surgical Laparoscopy Endoscopy & Percutaneous Techniques. 25(4). e122–e125. 18 indexed citations

13.

Morita, Takayuki, et al.. (2012). Total Pancreatectomy for a Multi-focal Invasive Ductal Carcinoma. The Japanese Journal of Gastroenterological Surgery. 45(10). 1046–1051. 1 indexed citations

14.

Morita, Takayuki, et al.. (2011). A CASE OF POLYSPLENIA SYNDROME WITH COMMON BILE DUCT CANCER. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 72(2). 466–471. 1 indexed citations

15.

Inoue, Yukiko, Tatsuyuki Kakuma, Keisuke Okamura, et al.. (2010). Beneficial Effect of Combination Therapy Comprising Angiotensin II Receptor Blocker Plus Calcium Channel Blocker on Plasma Adiponectin Levels. Clinical and Experimental Hypertension. 32(1). 21–28. 5 indexed citations

16.

Okamura, Keisuke, Yukiko Inoue, Yoshinari Uehara, et al.. (2009). PE-361 Impact of Brain Natriuretic Peptide in Predicting Reperfusion Injury Immediately after Reperfusion in Patients with ST-segment Elevation Acute Myocardial Infarction(PE061,ACS/AMI (Clinical/Pathophysiology) 2 (IHD),Poster Session (English),The 73rd Annual Scientific Meeting of The Japanese Circulation Society). Japanese Circulation Journal-english Edition. 73. 490–491. 6 indexed citations

17.

Morita, Takayuki, Keisuke Okamura, Koji Yamaguchi, et al.. (2009). A Case of Leiomyosarcoma of the Small Intestine with Rapidly Growth. The Japanese Journal of Gastroenterological Surgery. 42(4). 399–403. 2 indexed citations

18.

Suzuoki, Masato, et al.. (2008). A CASE OF HERNIATION THROUGH THE FORAMEN OF WINSLOW TREATED BY LAPAROSCOPY-ASSISTED SURGERY. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 69(1). 193–196. 2 indexed citations

19.

Okamura, Keisuke, Satoshi Watanabe, Kazuhiro Abe, Satoshi Kondo, & Hiroyuki Katoh. (2003). Autonomic Nerve Changes in the Mouse Pancreas after Pancreatic Duct Ligation. Pancreas. 27(1). 52–57. 3 indexed citations

20.

Matsumura, Kenta, Isao Abe, Masayo Fukuhara, et al.. (1994). Modulation of Circadian Rhythm of Blood Pressure by Cortisol in Patients with Hypopituitarism. Clinical and Experimental Hypertension. 16(1). 55–66. 14 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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