Yoji Hirayama

1.3k total citations
32 papers, 1.1k citations indexed

About

Yoji Hirayama is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Epidemiology. According to data from OpenAlex, Yoji Hirayama has authored 32 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Surgery, 9 papers in Cardiology and Cardiovascular Medicine and 6 papers in Epidemiology. Recurrent topics in Yoji Hirayama's work include Cardiovascular Health and Disease Prevention (6 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Gastroesophageal reflux and treatments (3 papers). Yoji Hirayama is often cited by papers focused on Cardiovascular Health and Disease Prevention (6 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Gastroesophageal reflux and treatments (3 papers). Yoji Hirayama collaborates with scholars based in Japan, Germany and United Kingdom. Yoji Hirayama's co-authors include Akira Yamashina, Hirofumi Tomiyama, Yutaka Koji, Yoshio Yamamoto, Tomio Arai, Kenichi Hirose, Minoru Yambe, Yoshifumi Takata, Kazuo Inoue and Kazuki Shiina and has published in prestigious journals such as SHILAP Revista de lepidopterología, Diabetes and Hypertension.

In The Last Decade

Yoji Hirayama

29 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Yoji Hirayama Japan 13 694 212 185 138 113 32 1.1k
Ghanshyam Palamaner Subash Shantha United States 18 341 0.5× 101 0.5× 173 0.9× 92 0.7× 179 1.6× 48 874
Sandrine Charpentier France 17 441 0.6× 164 0.8× 170 0.9× 25 0.2× 63 0.6× 108 1.0k
Stephen C. Gale United States 13 327 0.5× 119 0.6× 542 2.9× 107 0.8× 93 0.8× 26 1.1k
Takako Takita Japan 15 240 0.3× 135 0.6× 231 1.2× 72 0.5× 341 3.0× 24 1.1k
Brendan Limone United States 15 261 0.4× 127 0.6× 101 0.5× 77 0.6× 50 0.4× 36 996
Walter Droogné Belgium 18 701 1.0× 164 0.8× 212 1.1× 83 0.6× 69 0.6× 44 973
Prashanth Panduranga Oman 16 616 0.9× 141 0.7× 228 1.2× 99 0.7× 17 0.2× 123 874
Linda C. Stehling United States 18 258 0.4× 154 0.7× 442 2.4× 46 0.3× 75 0.7× 46 2.0k
Vikas Aggarwal United States 15 245 0.4× 121 0.6× 255 1.4× 75 0.5× 29 0.3× 80 670
Kathryn A. Britton United States 17 752 1.1× 88 0.4× 323 1.7× 227 1.6× 486 4.3× 28 1.5k

Countries citing papers authored by Yoji Hirayama

Since Specialization
Citations

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

Fields of papers citing papers by Yoji Hirayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yoji Hirayama

This figure shows the co-authorship network connecting the top 25 collaborators of Yoji Hirayama. A scholar is included among the top collaborators of Yoji Hirayama 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 Yoji Hirayama. Yoji Hirayama 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.
Yamazaki, Hajime, Brian Z. Huang, Yoji Hirayama, et al.. (2025). Multiorgan Fibrosis and Risk of Type 2 Diabetes: Genetic and Observational Evidence Highlighting a Causal Role of Pancreatic Fibrosis. Diabetes. 75(2). 369–378.
2.
Hirayama, Yoji, Junji Otaki, Yoshimi Harada, et al.. (2022). Changes in prevalence of Helicobacter pylori in Japan from 2008 to 2018: a repeated cross-sectional study. BMJ Open. 12(9). e058774–e058774. 9 indexed citations
3.
Oikawa, Tetsuro, et al.. (2020). Four Cases of Upper Gastrointestinal Symptoms Successfully Treated with Ryokeijutsukanto. Kampo Medicine. 71(3). 246–250. 2 indexed citations
4.
Sakai, Shuntaro, et al.. (2019). An Elderly Woman With Gibbus Deformity and Physiologic Shock. SHILAP Revista de lepidopterología. 3(4). 432–433. 2 indexed citations
5.
Kawai, Takashi, et al.. (2017). Effects of rikkunshito on quality of life in patients with gastroesophageal reflux disease refractory to proton pump inhibitor therapy. Journal of Clinical Biochemistry and Nutrition. 60(2). 143–145. 8 indexed citations
6.
Matsumoto, Tetsuya, et al.. (2016). Evaluation of the rapid influenza detection tests GOLD SIGN FLU and Quick Navi-Flu for the detection of influenza A and B virus antigens in adults during the influenza season. International Journal of Infectious Diseases. 52. 55–58. 16 indexed citations
7.
Hirayama, Yoji, et al.. (2016). Acute Adrenal Insufficiency Associated with Rathke's Cleft Cyst. Internal Medicine. 55(6). 639–642. 3 indexed citations
8.
Otaki, Junji, Shizuko Nagata-Kobayashi, Jun Hiramoto, et al.. (2016). How do case presentation teaching methods affect learning outcomes?-SNAPPS and the One-Minute preceptor. BMC Medical Education. 16(1). 12–12. 32 indexed citations
9.
Hashimoto, Tsuyoshi, Soichi Akata, Jinho Park, et al.. (2011). High-resolution Computed Tomography Findings in a Case of Severe Leptospira Infection (Weil Disease) Complicated With Jarisch-Herxheimer Reaction. Journal of Thoracic Imaging. 27(1). W24–W26. 6 indexed citations
10.
Usui, Yasuhiro, Hirofumi Tomiyama, Hideki Hashimoto, et al.. (2008). Plasma B-type natriuretic peptide level is associated with left ventricular hypertrophy among obstructive sleep apnoea patients. Journal of Hypertension. 26(1). 117–123. 19 indexed citations
11.
Tomiyama, Hirofumi, Yoji Hirayama, Hideki Hashimoto, et al.. (2006). The Effects of Changes in the Metabolic Syndrome Detection Status on Arterial Stiffening: A Prospective Study. Hypertension Research. 29(9). 673–678. 35 indexed citations
12.
Tomiyama, Hirofumi, Hideki Hashimoto, Yoji Hirayama, et al.. (2005). Synergistic Acceleration of Arterial Stiffening in the Presence of Raised Blood Pressure and Raised Plasma Glucose. Hypertension. 47(2). 180–188. 74 indexed citations
13.
Tomiyama, Hirofumi, Tomio Arai, Yutaka Koji, et al.. (2004). The relationship between high-sensitive C-reactive protein and pulse wave velocity in healthy Japanese men. Atherosclerosis. 174(2). 373–377. 32 indexed citations
14.
Yambe, Minoru, Hirofumi Tomiyama, Yoji Hirayama, et al.. (2004). Arterial Stiffening as a Possible Risk Factor for Both Atherosclerosis and Diastolic Heart Failure. Hypertension Research. 27(9). 625–631. 171 indexed citations
15.
Yamashina, Akira, Hirofumi Tomiyama, Tomio Arai, et al.. (2003). Brachial-Ankle Pulse Wave Velocity as a Marker of Atherosclerotic Vascular Damage and Cardiovascular Risk. Hypertension Research. 26(8). 615–622. 417 indexed citations
16.
Tanaka, Naoto, Kenji Takazawa, Masahiro Fujita, et al.. (1999). [Adult case of isolated noncompaction of left ventricular myocardium revealed at hospitalization for tuberculous pleuritis].. PubMed. 33(3). 169–74. 7 indexed citations
17.
Fujino, Masayuki, Masahiro Ikeda, Hiroshi Suzuki, et al.. (1985). A case of thoracic duct cyst simulating an oesophageal submucosal tumour and visualised by endoscopic ultrasonography. Acta gastro-enterologica belgica. 27(12). 2768–2772. 3 indexed citations
18.
Hirayama, Yoji. (1982). Gastrointestinal manifestations in systemic lupus erythematosus. Acta gastro-enterologica belgica. 24(3). 405–418. 2 indexed citations
19.
Miki, Kazumasa, Yoji Hirayama, Masao Ichinose, et al.. (1982). Upper gastrointestinal mass survey with panendoscopy in a workplace. Gastrointestinal Endoscopy. 28(2). 70–72. 4 indexed citations
20.
Miki, Kazumasa, et al.. (1978). A SLIDING TUBE FOR COLONOSCOPY THAT CAN BE ATTACHED AND REMOVED DURING THE EXAMINATION. Acta gastro-enterologica belgica. 20(5). 438–444. 1 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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