Kenji Hirano

9.1k total citations · 1 hit paper
184 papers, 5.9k citations indexed

About

Kenji Hirano is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Kenji Hirano has authored 184 papers receiving a total of 5.9k indexed citations (citations by other indexed papers that have themselves been cited), including 147 papers in Surgery, 93 papers in Pulmonary and Respiratory Medicine and 81 papers in Oncology. Recurrent topics in Kenji Hirano's work include Gallbladder and Bile Duct Disorders (80 papers), Pancreatic and Hepatic Oncology Research (76 papers) and Pediatric Hepatobiliary Diseases and Treatments (54 papers). Kenji Hirano is often cited by papers focused on Gallbladder and Bile Duct Disorders (80 papers), Pancreatic and Hepatic Oncology Research (76 papers) and Pediatric Hepatobiliary Diseases and Treatments (54 papers). Kenji Hirano collaborates with scholars based in Japan, United States and Spain. Kenji Hirano's co-authors include Hiroyuki Isayama, Minoru Tada, Naoki Sasahira, Yousuke Nakai, Hirofumi Kogure, Natsuyo Yamamoto, Masao Omata, Kazuhiko Koike, Takeshi Tsujino and Nobuo Toda and has published in prestigious journals such as Journal of Clinical Oncology, Gastroenterology and Econometrica.

In The Last Decade

Kenji Hirano

180 papers receiving 5.7k citations

Hit Papers

align trajectories sort by overperformance

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.

Standard steroid treatment for autoimmune pancreatitis

2009 474 citations Kenji Hirano, Masako Omata et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kenji Hirano Japan	44	4.6k	2.7k	2.3k	1.5k	1.5k	184	5.9k
John F. Gibbs United States	39	1.9k 0.4×	1.6k 0.6×	2.1k 0.9×	829 0.5×	303 0.2×	150	4.7k
Arief A. Suriawinata United States	38	2.4k 0.5×	868 0.3×	3.2k 1.4×	1.1k 0.7×	367 0.2×	123	5.9k
Nirag Jhala United States	41	2.4k 0.5×	1.5k 0.6×	3.2k 1.4×	1.4k 0.9×	152 0.1×	165	6.0k
A.G. Morganti Italy	38	2.6k 0.6×	2.8k 1.0×	2.9k 1.3×	895 0.6×	170 0.1×	438	7.3k
Richard Hubner United Kingdom	33	1.6k 0.3×	1.2k 0.4×	3.4k 1.4×	1.1k 0.7×	189 0.1×	199	5.5k
Thomas M. Pisansky United States	51	2.3k 0.5×	7.2k 2.7×	1.8k 0.8×	251 0.2×	861 0.6×	215	9.8k
Andrew T. Turrisi United States	47	1.7k 0.4×	7.8k 2.9×	5.0k 2.2×	2.2k 1.5×	431 0.3×	133	11.1k
Lipika Goyal United States	31	2.3k 0.5×	1.4k 0.5×	2.5k 1.1×	764 0.5×	179 0.1×	185	5.1k
Akira Sawaki Japan	44	4.7k 1.0×	7.4k 2.7×	6.3k 2.7×	808 0.5×	344 0.2×	150	11.8k
Martin E. Blackstein Canada	37	1.6k 0.4×	3.9k 1.5×	2.0k 0.8×	211 0.1×	736 0.5×	101	6.3k

Countries citing papers authored by Kenji Hirano

Since Specialization

Citations

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

Fields of papers citing papers by Kenji Hirano

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenji Hirano

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

Watanabe, Takeo, Yousuke Nakai, Suguru Mizuno, et al.. (2021). Prognosis of primary sclerosing cholangitis according to age of onset. Journal of Hepato-Biliary-Pancreatic Sciences. 28(12). 1115–1120. 2 indexed citations

Mizuno, Suguru, Kenji Hirano, Hiroyuki Isayama, et al.. (2015). Prospective study of bezafibrate for the treatment of primary sclerosing cholangitis. Journal of Hepato-Biliary-Pancreatic Sciences. 22(10). 766–770. 43 indexed citations

Nakai, Yousuke, Hiroyuki Isayama, Naoki Sasahira, et al.. (2014). Risk factors for post-ERCP pancreatitis in wire-guided cannulation for therapeutic biliary ERCP. Gastrointestinal Endoscopy. 81(1). 119–126. 55 indexed citations

Sasaki, Takashi, Hiroyuki Isayama, Yousuke Nakai, et al.. (2013). A pilot study of salvage irinotecan monotherapy for advanced biliary tract cancer.. PubMed. 33(6). 2619–22. 20 indexed citations

Uchino, Rie, Naoki Sasahira, Hiroyuki Isayama, et al.. (2013). Detection of painless pancreatitis by computed tomography in patients with post-endoscopic retrograde cholangiopancreatography hyperamylasemia. Pancreatology. 14(1). 17–20. 10 indexed citations

Matsubara, Saburo, Minoru Tada, Masaaki Akahane, et al.. (2012). Incidental Pancreatic Cysts Found by Magnetic Resonance Imaging and Their Relationship With Pancreatic Cancer. Pancreas. 41(8). 1241–1246. 43 indexed citations

Kawakubo, Kazumichi, Hiroyuki Isayama, Naoki Sasahira, et al.. (2012). Clinical utility of single‐operator cholangiopancreatoscopy using a SpyGlass probe through an endoscopic retrograde cholangiopancreatography catheter. Journal of Gastroenterology and Hepatology. 27(8). 1371–1376. 13 indexed citations

Nakai, Yousuke, Hiroyuki Isayama, Hideaki Ijichi, et al.. (2012). Phase I trial of gemcitabine and candesartan combination therapy in normotensive patients with advanced pancreatic cancer: GECA1. Cancer Science. 103(8). 1489–1492. 33 indexed citations

Takahara, Naminatsu, Hiroyuki Isayama, Takashi Sasaki, et al.. (2012). Endoscopic papillary balloon dilation for bile duct stones in patients on hemodialysis. Journal of Gastroenterology. 47(8). 918–923. 24 indexed citations

10.

Hirano, Kenji, Minoru Tada, Hiroyuki Isayama, et al.. (2012). High Alcohol Consumption Increases the Risk of Pancreatic Stone Formation and Pancreatic Atrophy in Autoimmune Pancreatitis. Pancreas. 42(3). 502–505. 29 indexed citations

11.

Hirano, Kenji, Akihiro Isogawa, Minoru Tada, et al.. (2012). Long-Term Prognosis of Autoimmune Pancreatitis in Terms of Glucose Tolerance. Pancreas. 41(5). 691–695. 26 indexed citations

12.

Sasaki, Takashi, Hiroyuki Isayama, Yousuke Nakai, et al.. (2010). Prognostic factors in patients with advanced biliary tract cancer receiving chemotherapy. Cancer Chemotherapy and Pharmacology. 67(4). 847–853. 24 indexed citations

13.

Nakai, Yousuke, Hiroyuki Isayama, Takao Kawabe, et al.. (2009). Efficacy and safety of metallic stents in patients with unresectable pancreatic cancer receiving gemcitabine. Suizo. 24(2). 208–209. 3 indexed citations

14.

Nakai, Yousuke, Hiroyuki Isayama, Takao Kawabe, et al.. (2008). Efficacy and Safety of Metallic Stents in Patients With Unresectable Pancreatic Cancer Receiving Gemcitabine. Pancreas. 37(4). 405–410. 20 indexed citations

15.

Matsubara, Saburo, Toshihiko Arizumi, Osamu Togawa, et al.. (2007). Endoscopic transpapillary approach to the gallbladder for diagnosing gallbladder cancer.. PubMed. 21(12). 809–13. 3 indexed citations

16.

Higashi, Daijiro, et al.. (2007). Study of colorectal cancer with Crohn's disease.. PubMed. 27(6A). 3771–4. 10 indexed citations

17.

Isayama, Hiroyuki, Takao Kawabe, Yutaka Komatsu, et al.. (2005). Successful treatment for groove pancreatitis by endoscopic drainage via the minor papilla. Gastrointestinal Endoscopy. 61(1). 175–178. 33 indexed citations

18.

Hirano, Kenji, Hiroyuki Isayama, Nobuo Toda, et al.. (2001). Pancreatic ductal alterations following small diameter, long length, unflanged pancreatic duct (PD) stent placement. Gastrointestinal Endoscopy. 53(5). AB86–AB86. 1 indexed citations

19.

Muramatsu, Toshiya, et al.. (2001). Clinical outcome of stent implantation in small coronary arteries using different types of coronary stents.. PubMed. 13(9). 634–9. 11 indexed citations

20.

Hirano, Kenji. (1999). Semiparametric Bayesian Models for Dynamic Earnings Data. 6 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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