Ryuichi Hayashi

5.9k total citations
268 papers, 4.0k citations indexed

About

Ryuichi Hayashi is a scholar working on Surgery, Otorhinolaryngology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryuichi Hayashi has authored 268 papers receiving a total of 4.0k indexed citations (citations by other indexed papers that have themselves been cited), including 160 papers in Surgery, 122 papers in Otorhinolaryngology and 80 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryuichi Hayashi's work include Head and Neck Cancer Studies (119 papers), Head and Neck Surgical Oncology (45 papers) and Reconstructive Surgery and Microvascular Techniques (42 papers). Ryuichi Hayashi is often cited by papers focused on Head and Neck Cancer Studies (119 papers), Head and Neck Surgical Oncology (45 papers) and Reconstructive Surgery and Microvascular Techniques (42 papers). Ryuichi Hayashi collaborates with scholars based in Japan, United States and Italy. Ryuichi Hayashi's co-authors include Minoru Sakuraba, Satoshi Ebihara, Yoshihiro Kimata, Atsushi Ochiai, Satoshi Fujii, Shimpei Miyamoto, Makoto Tahara, Masahisa Saikawa, Takahiro Asakage and Kiyonori Harii and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Ryuichi Hayashi

235 papers receiving 3.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuichi Hayashi Japan 31 2.2k 1.3k 1.1k 921 283 268 4.0k
A. Eckardt Germany 34 2.0k 0.9× 763 0.6× 573 0.5× 1.3k 1.4× 193 0.7× 158 3.7k
Klaus‐Dietrich Wolff Germany 41 3.0k 1.4× 864 0.7× 721 0.7× 1.2k 1.3× 554 2.0× 233 5.5k
Klaus W. Grätz Switzerland 36 1.6k 0.7× 843 0.6× 624 0.6× 608 0.7× 582 2.1× 139 3.7k
Matthew M. Hanasono United States 47 4.5k 2.0× 789 0.6× 864 0.8× 830 0.9× 367 1.3× 179 5.5k
Thomas Mücke Germany 32 2.0k 0.9× 493 0.4× 455 0.4× 797 0.9× 290 1.0× 152 3.2k
Keith S. Heller United States 33 1.6k 0.7× 544 0.4× 280 0.3× 670 0.7× 177 0.6× 66 3.4k
Stefan Schultze–Mosgau Germany 36 1.8k 0.8× 502 0.4× 417 0.4× 449 0.5× 940 3.3× 144 5.2k
J. Jansma Netherlands 26 683 0.3× 755 0.6× 1.0k 1.0× 383 0.4× 162 0.6× 95 2.7k
Edouard Stauffer Switzerland 34 2.7k 1.2× 378 0.3× 737 0.7× 1.0k 1.1× 324 1.1× 116 4.2k
David E. Schuller United States 43 3.0k 1.4× 3.3k 2.5× 1.7k 1.6× 2.2k 2.4× 89 0.3× 152 6.4k

Countries citing papers authored by Ryuichi Hayashi

Since Specialization
Citations

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

Fields of papers citing papers by Ryuichi Hayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichi Hayashi

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuichi Hayashi. A scholar is included among the top collaborators of Ryuichi Hayashi 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 Ryuichi Hayashi. Ryuichi Hayashi 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.
Suzuki, Toshihiro, Manami Shimomura, Shigeki Yagyu, et al.. (2025). Feasibility of Intratumoral Administration With EPHB4‐CAR‐T Cells for the Treatment of Oral Squamous Cell Carcinoma. Cancer Science. 116(5). 1227–1238. 1 indexed citations
2.
Matsuura, Kazuto, et al.. (2024). Anatomical recognition artificial intelligence for identifying the recurrent laryngeal nerve during endoscopic thyroid surgery: A single‐center feasibility study. Laryngoscope Investigative Otolaryngology. 9(6). e70049–e70049. 2 indexed citations
3.
Tanaka, Hideki, Yoshikatsu Koga, Akihiro Ishikawa, et al.. (2024). Real-Time Fluorescence Monitoring System for Optimal Light Dosage in Cancer Photoimmunotherapy. Pharmaceuticals. 17(9). 1246–1246. 2 indexed citations
4.
Shinozaki, Takeshi, Toshifumi Tomioka, Kazuto Matsuura, et al.. (2024). Early enteral nutrition and mobilization following head and neck surgery with free flap reconstruction. Japanese Journal of Clinical Oncology. 54(7). 770–777. 1 indexed citations
5.
6.
Imamura, Yoshinori, Naomi Kiyota, Makoto Tahara, et al.. (2024). Risk prediction model for cisplatin-induced acute kidney injury in patients with head and neck cancer receiving chemoradiotherapy: A re-analysis of a phase II/III JCOG1008 trial. Oral Oncology. 154. 106868–106868. 2 indexed citations
7.
Adachi, Masahiro, Tetsuro Taki, Motohiro Kojima, et al.. (2024). Predicting lymph node recurrence in cT1‐2N0 tongue squamous cell carcinoma: collaboration between artificial intelligence and pathologists. The Journal of Pathology Clinical Research. 10(5). e12392–e12392. 4 indexed citations
8.
Harada, Tsuyoshi, et al.. (2023). Priority of the basic and instrumental activities of daily living in older patients with cancer prescribed rehabilitation: a cross-sectional survey. Supportive Care in Cancer. 31(8). 503–503. 3 indexed citations
9.
Tomioka, Toshifumi, Takeshi Beppu, Tetsuro Onitsuka, et al.. (2023). Post-operative progress of arm abduction function and rate of lymph node metastasis around the region of the accessory nerve: a multicentre prospective observational study. Japanese Journal of Clinical Oncology. 53(5). 401–409.
10.
Sato, Haruna, et al.. (2023). A Case Series on Pain Accompanying Photoimmunotherapy for Head and Neck Cancer. Healthcare. 11(6). 924–924. 13 indexed citations
11.
Matsuura, Kazuto, et al.. (2023). Evaluation of geriatric assessment for reconstructive surgery of head and neck cancer. JOURNAL OF JAPAN SOCIETY FOR HEAD AND NECK SURGERY. 33(1). 33–39.
12.
Adachi, Masahiro, Toshifumi Tomioka, Satoshi Fujii, et al.. (2022). Is elective neck dissection necessary for patients with cT3-4N0 parotid gland cancer?. Auris Nasus Larynx. 49(5). 856–861. 2 indexed citations
13.
Saito, Yuki, Akihiro Homma, Naomi Kiyota, et al.. (2022). Human papillomavirus-related oropharyngeal carcinoma. Japanese Journal of Clinical Oncology. 52(7). 700–706. 2 indexed citations
14.
Okumura, Masayuki, Atsushi Motegi, Sadamoto Zenda, et al.. (2020). Efficacy and safety of accelerated fractionated radiotherapy without elective nodal irradiation for T3N0 glottic cancer without vocal cord fixation. Head & Neck. 42(8). 1775–1782. 4 indexed citations
15.
Monden, Nobuya, Takahiro Asakage, Naomi Kiyota, et al.. (2019). A review of head and neck cancer staging system in the TNM classification of malignant tumors (eighth edition). Japanese Journal of Clinical Oncology. 49(7). 589–595. 25 indexed citations
16.
Sakuraba, Minoru, et al.. (2013). Closure of difficult pharyngocutaneous fistula following salvage laryngectomy: case report. Toukeibu Gan. 39(4). 504–508.
17.
Hayashi, Ryuichi, Mitsuo Yamazaki, Masakazu Miyazaki, et al.. (2008). Salvage surgery for hypopharyngeal carcinoma and cervical esophageal carcinoma with local recurrence or residual tumor after chemoradiotherapy. Toukeibu Gan. 34(1). 47–51. 4 indexed citations
18.
Sakuraba, Minoru, Takayuki Asano, Ryuichi Hayashi, et al.. (2005). ANALYSIS OF POSTOPERATIVE COMPLICATIONS AFTER CONDUIT RECONSTRUCTION USING FREE JEJUNUM GRAFT. Toukeibu Gan. 31(3). 352–356. 3 indexed citations
19.
Kamijo, Tomoyuki, Tomoyuki Yokose, Takahiro Hasebe, et al.. (2000). Potential role of microvessel density in predicting radiosensitivity of T1 and T2 stage laryngeal squamous cell carcinoma treated with radiotherapy.. PubMed. 6(8). 3159–65. 30 indexed citations
20.
Hayashi, Nobuyuki, Ryuichi Hayashi, Takeo Yamaguchi, et al.. (1990). MUCIN-PRODUCING CARCINOMA OF THE GALLBLADDER : REPORT OF A CASE. Acta gastro-enterologica belgica. 32(8). 2001–2007. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by A. Eckardt Breakdown of academic impact, for papers by Klaus‐Dietrich Wolff Breakdown of academic impact, for papers by Klaus W. Grätz Breakdown of academic impact, for papers by Matthew M. Hanasono Breakdown of academic impact, for papers by Thomas Mücke Breakdown of academic impact, for papers by Keith S. Heller Breakdown of academic impact, for papers by Stefan Schultze–Mosgau Breakdown of academic impact, for papers by J. Jansma Breakdown of academic impact, for papers by Edouard Stauffer Breakdown of academic impact, for papers by David E. Schuller
Rankless by CCL
2026