Tsuneo Oyama

9.4k total citations · 6 hit papers
104 papers, 5.1k citations indexed

About

Tsuneo Oyama is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Gastroenterology. According to data from OpenAlex, Tsuneo Oyama has authored 104 papers receiving a total of 5.1k indexed citations (citations by other indexed papers that have themselves been cited), including 92 papers in Pulmonary and Respiratory Medicine, 76 papers in Surgery and 27 papers in Gastroenterology. Recurrent topics in Tsuneo Oyama's work include Gastric Cancer Management and Outcomes (92 papers), Esophageal Cancer Research and Treatment (55 papers) and Metastasis and carcinoma case studies (41 papers). Tsuneo Oyama is often cited by papers focused on Gastric Cancer Management and Outcomes (92 papers), Esophageal Cancer Research and Treatment (55 papers) and Metastasis and carcinoma case studies (41 papers). Tsuneo Oyama collaborates with scholars based in Japan, Germany and Austria. Tsuneo Oyama's co-authors include Hisahiro Matsubara, Akihisa Tomori, Takashi Uno, Kinichi Hotta, Yasushi Toh, Yoshinori Miyata, Hodaka Numasaki, Soji Ozawa, Yuji Tachimori and Ryu Ishihara and has published in prestigious journals such as SHILAP Revista de lepidopterología, The American Journal of Gastroenterology and Carcinogenesis.

In The Last Decade

Tsuneo Oyama

100 papers receiving 5.0k citations

Hit Papers

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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.

Endoscopic Submucosal Dissection of Early Esophageal Cancer

2005 492 citations Tsuneo Oyama, Akihisa Tomori et al. profile →
Esophageal cancer practice guidelines 2017 edited by the Japan esophageal society: part 2

2018 400 citations Yuko Kitagawa, Takashi Uno et al. Esophagus profile →
Esophageal cancer practice guidelines 2017 edited by the Japan Esophageal Society: part 1

2018 367 citations Yuko Kitagawa, Takashi Uno et al. Esophagus profile →
Guidelines for Diagnosis and Treatment of Carcinoma of the Esophagus April 2012 edited by the Japan Esophageal Society

2014 348 citations Tsuneo Oyama, Yuko Kitagawa et al. Esophagus profile →
Endoscopic submucosal dissection/endoscopic mucosal resection guidelines for esophageal cancer

2020 222 citations Ryu Ishihara, Miwako Arima et al. Digestive Endoscopy profile →
Japanese Classification of Esophageal Cancer, 12th Edition: Part I

2024 47 citations Shinji Mine, Koji Tanaka et al. Esophagus profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Tsuneo Oyama Japan	36	4.2k	3.7k	1.3k	639	192	104	5.1k
Hirofumi Kawakubo Japan	26	2.3k 0.5×	2.5k 0.7×	480 0.4×	735 1.2×	236 1.2×	205	3.5k
Kuniyoshi Arai Japan	13	3.7k 0.9×	1.9k 0.5×	1.8k 1.4×	1.0k 1.6×	325 1.7×	59	4.3k
Akinori Takagane Japan	28	3.5k 0.8×	1.7k 0.5×	1.7k 1.3×	1.7k 2.6×	414 2.2×	116	4.6k
Harushi Osugi Japan	27	1.8k 0.4×	1.8k 0.5×	566 0.4×	347 0.5×	169 0.9×	154	2.5k
Sung Kim South Korea	25	2.3k 0.5×	1.3k 0.3×	1.2k 0.9×	494 0.8×	229 1.2×	98	2.9k
Masakazu Takagi Japan	20	2.3k 0.5×	1.2k 0.3×	1.1k 0.9×	956 1.5×	223 1.2×	69	2.9k
Shinya Kodashima Japan	35	3.6k 0.9×	2.6k 0.7×	2.0k 1.6×	518 0.8×	67 0.3×	115	4.4k
Hirotoshi Akiyama Japan	30	2.0k 0.5×	1.4k 0.4×	886 0.7×	579 0.9×	297 1.5×	162	2.9k
Hans‐Joachim Meyer Germany	17	2.5k 0.6×	2.1k 0.6×	589 0.4×	416 0.7×	146 0.8×	63	3.0k
Koshi Kumagai Japan	31	2.1k 0.5×	1.6k 0.4×	830 0.6×	720 1.1×	126 0.7×	141	2.8k

Countries citing papers authored by Tsuneo Oyama

Since Specialization

Citations

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

Fields of papers citing papers by Tsuneo Oyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tsuneo Oyama

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

Ishihara, Ryu, Tsuneo Oyama, Manabu Takeuchi, et al.. (2024). Multicenter retrospective analysis of complications and risk factors in endoscopic resection for esophageal cancer across Japan. Esophagus. 21(4). 430–437. 3 indexed citations

Mine, Shinji, Koji Tanaka, Hiroshi Kawachi, et al.. (2024). Japanese Classification of Esophageal Cancer, 12th Edition: Part I. Esophagus. 21(3). 179–215. 47 indexed citations breakdown →

Doki, Yuichiro�, Koji Tanaka, Hiroshi Kawachi, et al.. (2024). Japanese Classification of Esophageal Cancer, 12th Edition: Part II. Esophagus. 21(3). 216–269. 29 indexed citations

Faiss, Siegbert, Franz Ludwig Dumoulin, Tsuneo Oyama, et al.. (2023). Predictive Factors for the Outcome of Unsupervised Endoscopic Submucosal Dissection During the Initial Learning Curve with Prevalence-Based Indication. Digestive Diseases and Sciences. 68(9). 3614–3624. 3 indexed citations

Dohi, Osamu, Motohiko Kato, Yoji Takeuchi, et al.. (2023). Clinical course and management of adverse events after endoscopic resection of superficial duodenal epithelial tumors: Multicenter retrospective study. Digestive Endoscopy. 35(7). 879–888. 4 indexed citations

Kadota, Tomohiro, Ryu Ishihara, Waku Hatta, et al.. (2023). Multi‐institutional questionnaire on treatment strategies for superficial entire circumferential esophageal squamous cell carcinoma. SHILAP Revista de lepidopterología. 3(1). e206–e206. 1 indexed citations

Higuchi, Kazutoshi, Osamu Goto, Teppei Akimoto, et al.. (2022). Chronological Changes in Mucosal Deformity by Endoscopic Suturing after Gastric Endoscopic Submucosal Dissection: A Multicenter Retrospective Analysis. Digestion. 104(2). 121–128. 3 indexed citations

Faiss, Siegbert, Franz Ludwig Dumoulin, Tsuneo Oyama, et al.. (2022). Learning curve of endoscopic submucosal dissection (ESD) with prevalence-based indication in unsupervised Western settings: a retrospective multicenter analysis. Surgical Endoscopy. 37(4). 2574–2586. 10 indexed citations

Ishihara, Ryu, Miwako Arima, Toshiro Iizuka, et al.. (2020). Endoscopic submucosal dissection/endoscopic mucosal resection guidelines for esophageal cancer. Digestive Endoscopy. 32(4). 452–493. 222 indexed citations breakdown →

10.

Kishino, Takaaki, et al.. (2020). Risk of colonoscopic post-polypectomy bleeding in patients after the discontinuation of antithrombotic therapy. The Turkish Journal of Gastroenterology. 31(11). 752–759. 3 indexed citations

11.

Tachimori, Yuji, Soji Ozawa, Hodaka Numasaki, et al.. (2018). Comprehensive Registry of Esophageal Cancer in Japan, 2011. Esophagus. 15(3). 127–152. 50 indexed citations

12.

Ishihara, Ryu, Kenichi Goda, & Tsuneo Oyama. (2018). Endoscopic diagnosis and treatment of esophageal adenocarcinoma: introduction of Japan Esophageal Society classification of Barrett’s esophagus. Journal of Gastroenterology. 54(1). 1–9. 30 indexed citations

13.

Oyama, Tsuneo, et al.. (2016). Endoscopic Diagnosis of Superficial Barrett's Esophageal Adenocarcinoma. 51(10). 1332.

14.

Hildenbrand, Ralf, et al.. (2016). Endoscopic submucosal dissection for flat or sessile colorectal neoplasia > 20 mm: A European single-center series of 182 cases. SHILAP Revista de lepidopterología. 4(8). E895–E900. 41 indexed citations

15.

Tanabe, Satoshi, Kenji Ishido, Takayuki Matsumoto, et al.. (2016). Long-term outcomes of endoscopic submucosal dissection for early gastric cancer: a multicenter collaborative study. Gastric Cancer. 20(S1). 45–52. 80 indexed citations

16.

Tachimori, Yuji, Soji Ozawa, Hodaka Numasaki, et al.. (2015). Comprehensive Registry of Esophageal Cancer in Japan, 2008. Esophagus. 12(2). 130–157. 27 indexed citations

17.

Oyama, Tsuneo. (2011). Endoscopic submucosal dissection using a hook knife. Techniques in Gastrointestinal Endoscopy. 13(1). 70–73. 8 indexed citations

18.

Hotta, Kinichi, Tsuneo Oyama, Tomoaki Shinohara, et al.. (2010). LEARNING CURVE FOR ENDOSCOPIC SUBMUCOSAL DISSECTION OF LARGE COLORECTAL TUMORS. Digestive Endoscopy. 22(4). 302–306. 141 indexed citations

19.

Oyama, Tsuneo & Yoko Kitamura. (2009). The Prevention of Stricture After Circumferential Esophageal Endoscopic Submucosal Dissection - Can Steroid Injection Reduce the Number of Balloon Dilatation?. Gastrointestinal Endoscopy. 69(5). AB359–AB359. 2 indexed citations

20.

Hotta, Kinichi, Tsuneo Oyama, Taiji Akamatsu, et al.. (2007). A Multicenter Retrospective Study of Endoscopic Submucosal Dissection for Early Gastric Neoplasms-The Nagano ESD Study Group Report. Gastrointestinal Endoscopy. 65(5). AB272–AB272. 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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