Kenjiro Yamamoto

3.4k total citations
221 papers, 2.4k citations indexed

About

Kenjiro Yamamoto is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Kenjiro Yamamoto has authored 221 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Pulmonary and Respiratory Medicine, 67 papers in Surgery and 52 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Kenjiro Yamamoto's work include Gallbladder and Bile Duct Disorders (50 papers), Renin-Angiotensin System Studies (46 papers) and Pancreatic and Hepatic Oncology Research (45 papers). Kenjiro Yamamoto is often cited by papers focused on Gallbladder and Bile Duct Disorders (50 papers), Renin-Angiotensin System Studies (46 papers) and Pancreatic and Hepatic Oncology Research (45 papers). Kenjiro Yamamoto collaborates with scholars based in Japan, United States and Hong Kong. Kenjiro Yamamoto's co-authors include Fumihiko Ikemoto, Youichi Abe, Takao Itoi, Juro Ueda, Itsumaro Kumadaki, Yoshihiro Kobayashi, Shuntaro Mukai, Takayoshi Tsuchiya, Takeshi Okahara and Atsushi Sofuni and has published in prestigious journals such as Science, Journal of Biological Chemistry and SHILAP Revista de lepidopterología.

In The Last Decade

Kenjiro Yamamoto

206 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kenjiro Yamamoto Japan	25	722	639	623	563	455	221	2.4k
Thomas Jax Germany	18	429 0.6×	581 0.9×	384 0.6×	824 1.5×	848 1.9×	44	2.7k
William P. Dole United States	34	1.9k 2.6×	635 1.0×	608 1.0×	660 1.2×	269 0.6×	84	3.7k
Ravi Nistala United States	28	652 0.9×	346 0.5×	139 0.2×	533 0.9×	222 0.5×	59	2.1k
Tamás Radovits Hungary	31	1.2k 1.7×	780 1.2×	344 0.6×	835 1.5×	160 0.4×	194	3.2k
Toru Miyoshi Japan	37	2.2k 3.0×	1.2k 1.8×	464 0.7×	895 1.6×	198 0.4×	233	4.4k
Yasushi Abiko Japan	29	985 1.4×	330 0.5×	234 0.4×	1.1k 1.9×	116 0.3×	225	3.1k
David G. Hassall United Kingdom	21	414 0.6×	560 0.9×	225 0.4×	777 1.4×	87 0.2×	34	2.1k
Keisuke Ishizawa Japan	28	258 0.4×	206 0.3×	395 0.6×	643 1.1×	411 0.9×	149	2.5k
Jin Endo Japan	28	1.1k 1.5×	900 1.4×	533 0.9×	1.3k 2.3×	241 0.5×	86	3.5k
Masayuki Shibasaki Japan	28	247 0.3×	831 1.3×	455 0.7×	985 1.7×	217 0.5×	124	2.7k

Countries citing papers authored by Kenjiro Yamamoto

Since Specialization

Citations

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

Fields of papers citing papers by Kenjiro Yamamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenjiro Yamamoto

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

Kojima, Hiroyuki, Takao Itoi, Atsushi Sofuni, et al.. (2025). The impact of the novel EUS scope and ultrasonographic system for diagnosis and therapy in patients with pancreatobiliary diseases (videos). Journal of Hepato-Biliary-Pancreatic Sciences. 32(7). 544–553.

Yamamoto, Kenjiro, Takao Itoi, Atsushi Sofuni, et al.. (2025). Verification in an animal study of the appropriate settings for a novel radiofrequency generator in radiofrequency ablation therapy for residual intraductal lesions after endoscopic papillectomy (with video). Digestive Endoscopy. 37(6). 704–711. 1 indexed citations

Mukai, Shuntaro, Takao Itoi, Takayoshi Tsuchiya, et al.. (2024). A novel technique for one‐step dilation followed by bile aspiration using an ultra‐tapered bougie dilator with side holes to minimize bile leakage during EUS‐guided hepaticogastrostomy. Journal of Hepato-Biliary-Pancreatic Sciences. 31(5). e17–e19. 1 indexed citations

Yamamoto, Kenjiro, Takao Itoi, Akio Katanuma, et al.. (2024). Multicenter comparative study on the usefulness of the optimal electrosurgical unit setting in endoscopic papillectomy for ampullary neoplasms (with video). Journal of Hepato-Biliary-Pancreatic Sciences. 31(7). 503–511. 1 indexed citations

Mukai, Shuntaro, Takao Itoi, Takayoshi Tsuchiya, et al.. (2024). One‐step tract dilation using a novel long balloon catheter during endoscopic ultrasound‐guided hepaticogastrostomy. Journal of Hepato-Biliary-Pancreatic Sciences. 31(7). e38–e40. 4 indexed citations

Kojima, Hiroyuki, et al.. (2023). Surgical salvage intervention for a migrated metal stent during endoscopic ultrasound-guided hepaticogastrostomy. Endoscopy. 55(S 01). E1228–E1229. 1 indexed citations

Yamamoto, Kenjiro, Atsushi Sofuni, Takayoshi Tsuchiya, et al.. (2023). Factors predicting technical failure of endoscopic transpapillary gallbladder drainage for acute cholecystitis. SHILAP Revista de lepidopterología. 4(1). e308–e308. 1 indexed citations

Ito, Hiroshi, et al.. (2023). Multimodal Time Series Learning of Robots Based on Distributed and Integrated Modalities: Verification with a Simulator and Actual Robots. 9551–9557. 3 indexed citations

Yamamoto, Kenjiro, Takayoshi Tsuchiya, Reina Tanaka, et al.. (2023). Endoscopic retrieval of a proximally migrated fully covered self‐expandable metal stent using biopsy forceps with a guiding sheath cannula. Journal of Hepato-Biliary-Pancreatic Sciences. 30(12). e81–e83. 1 indexed citations

10.

Yamamoto, Kenjiro, Takao Itoi, Yukitoshi Matsunami, et al.. (2023). Early and late effects of endoscopic interventions in patients with malignant afferent loop syndrome: A single‐center experience and literature review. Journal of Hepato-Biliary-Pancreatic Sciences. 31(2). 120–132. 1 indexed citations

11.

Tonozuka, Ryosuke, Kazumasa Nagai, Takayoshi Tsuchiya, et al.. (2023). Potential versatile uses of a novel ultra‐thin peroral cholangioscope. Journal of Hepato-Biliary-Pancreatic Sciences. 31(3). e11–e13. 1 indexed citations

12.

Tonozuka, Ryosuke, Takao Itoi, Kazumasa Nagai, et al.. (2022). A novel peroral digital cholangioscope with a large accessory channel: An experimental study. Journal of Hepato-Biliary-Pancreatic Sciences. 30(3). 401–407. 1 indexed citations

13.

Yamamoto, Kenjiro, et al.. (2022). Use of a novel self‐assembling hemostatic gel as a complementary therapeutic tool for endoscopic sphincterotomy‐related bleeding. Journal of Hepato-Biliary-Pancreatic Sciences. 29(9). e81–e83. 12 indexed citations

14.

Yamamoto, Kenjiro, Shuntaro Mukai, Ryosuke Tonozuka, et al.. (2022). A novel self‐assembling hemostatic agent as an effective therapeutic tool for intracavitary bleeding from peripancreatic fluid collection after endoscopic ultrasonography‐guided drainage using a lumen‐apposing metal stent. Journal of Hepato-Biliary-Pancreatic Sciences. 30(6). e38–e40.

15.

Yamamoto, Kenjiro, Takayoshi Tsuchiya, Ryosuke Tonozuka, et al.. (2022). Endoscopic ultrasound‐guided gastrojejunostomy for malignant afferent loop syndrome with hemorrhage in a patient with recurrent peritoneal dissemination. Journal of Hepato-Biliary-Pancreatic Sciences. 29(7). e65–e67. 1 indexed citations

16.

Yamamoto, Kenjiro, Yukitoshi Matsunami, Takayoshi Tsuchiya, et al.. (2021). Stent placement using the EUS‐guided pancreatic duct drainage rendezvous technique for pancreatic ductal stenosis after endoscopic papillectomy. Journal of Hepato-Biliary-Pancreatic Sciences. 29(4). e19–e21. 1 indexed citations

17.

Mukai, Shuntaro, Takao Itoi, Takayoshi Tsuchiya, et al.. (2021). New deployment techniques of the lumen‐apposing metal stent in walled‐off necrosis filled with necrotic tissue: Chick opening its mouth (with video). Digestive Endoscopy. 33(6). 985–989. 10 indexed citations

18.

Yamamoto, Kenjiro, Takao Itoi, Takayoshi Tsuchiya, et al.. (2020). Pre‐aspiration of a large retention cyst followed by EUS‐FNB for the successful diagnosis of a patient with pancreatic cancer. Journal of Hepato-Biliary-Pancreatic Sciences. 27(12). e20–e21. 1 indexed citations

19.

Itoi, Takao, Kenjiro Yamamoto, Takayoshi Tsuchiya, et al.. (2018). EUS-guided antegrade metal stenting with hepaticoenterostomy using a dedicated plastic stent with a review of the literature (with video). Endoscopic Ultrasound. 7(6). 404–404. 31 indexed citations

20.

Abe, Youichi, Takeshi Okahara, & Kenjiro Yamamoto. (1972). EFFECT OF D-3-ACETOXY-2,3-DIHYDRO-5-2-(DIMETHYLAMINO) ETYL-2-(P-METHOXYPHENYL)-1,5-BENZOTHIAZEPIN-4 (5H)-ONE-HYDROCHLORIDE (CRD) ON RENAL FUNCTION IN THE DOG. Japanese Circulation Journal-english Edition. 36(9). 1002–1003. 10 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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