Kazuki Sumiyama

3.9k total citations
167 papers, 2.7k citations indexed

About

Kazuki Sumiyama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Kazuki Sumiyama has authored 167 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 119 papers in Surgery, 107 papers in Pulmonary and Respiratory Medicine and 58 papers in Gastroenterology. Recurrent topics in Kazuki Sumiyama's work include Gastric Cancer Management and Outcomes (76 papers), Gastrointestinal Tumor Research and Treatment (37 papers) and Esophageal and GI Pathology (34 papers). Kazuki Sumiyama is often cited by papers focused on Gastric Cancer Management and Outcomes (76 papers), Gastrointestinal Tumor Research and Treatment (37 papers) and Esophageal and GI Pathology (34 papers). Kazuki Sumiyama collaborates with scholars based in Japan, United States and Singapore. Kazuki Sumiyama's co-authors include Hisao Tajiri, Christopher J. Gostout, Elizabeth Rajan, Mary A. Knipschield, Timothy A. Bakken, Kenichi Goda, Naoto Tamai, Keiichi Ikeda, Hiroshi Kakutani and Tomohiko R. Ohya and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and PLoS ONE.

In The Last Decade

Kazuki Sumiyama

150 papers receiving 2.6k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kazuki Sumiyama Japan	30	1.9k	1.6k	1.1k	739	208	167	2.7k
Mathieu Pioche France	24	1.5k 0.8×	1.6k 1.0×	1.2k 1.1×	704 1.0×	238 1.1×	282	2.6k
Brigitte Schumacher Germany	26	1.8k 1.0×	1.8k 1.1×	803 0.8×	661 0.9×	154 0.7×	92	2.7k
Iruru Maetani Japan	26	1.9k 1.0×	1.7k 1.1×	292 0.3×	902 1.2×	82 0.4×	129	2.4k
Roos E. Pouw Netherlands	30	3.1k 1.7×	2.4k 1.5×	679 0.6×	322 0.4×	64 0.3×	161	3.4k
Jason Samarasena United States	22	1.1k 0.6×	704 0.4×	272 0.3×	951 1.3×	466 2.2×	170	1.8k
Emanuele Rondonotti Italy	33	2.8k 1.5×	1.3k 0.8×	3.0k 2.9×	800 1.1×	306 1.5×	141	3.9k
Toshiyuki Mori Japan	31	2.3k 1.2×	1.6k 1.0×	822 0.8×	1.3k 1.7×	234 1.1×	106	3.1k
Mitsuru Kaise Japan	29	2.3k 1.2×	2.0k 1.3×	1.2k 1.1×	500 0.7×	97 0.5×	148	3.1k
Oliver Pech Germany	41	5.9k 3.1×	5.5k 3.4×	1.3k 1.3×	1.1k 1.4×	81 0.4×	175	6.9k
Ayako Tateishi Japan	17	874 0.5×	1.5k 0.9×	800 0.8×	232 0.3×	81 0.4×	43	1.8k

Countries citing papers authored by Kazuki Sumiyama

Since Specialization

Citations

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

Fields of papers citing papers by Kazuki Sumiyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kazuki Sumiyama

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

Sekiguchi, Masau, Kensuke Shinmura, Kazuki Sumiyama, et al.. (2025). Protocol for a multicenter randomized controlled trial to assess the usefulness of computer-aided detection systems for colonoscopy in colorectal cancer screening in the Asia-Pacific region (project CAD/NCCH2217). Japanese Journal of Clinical Oncology. 55(7). 837–840. 1 indexed citations

Dobashi, Akira, Yuta Takano, Kenji Takeshita, et al.. (2025). Detection of multiple signet ring cell carcinomas using texture and color enhancement imaging led to a diagnosis of hereditary diffuse gastric cancer. DEN Open. 5(1). e70071–e70071.

Dobashi, Akira, Yuko Hara, Naoya TADA, et al.. (2024). Diagnostic Performance of a Novel Ultra-Thin Endoscopy under Narrow-Band Imaging for Superficial Squamous Cell Carcinoma of the Pharynx and Esophagus. Cancers. 16(3). 529–529.

TADA, Naoya, et al.. (2024). Novel reopenable clip with anchor prongs facilitates mucosal defect closure after colorectal endoscopic submucosal dissection: Pilot feasibility study (with video). Digestive Endoscopy. 36(10). 1164–1170. 5 indexed citations

Dobashi, Akira, et al.. (2023). Lymph node metastasis after endoscopic submucosal dissection of a superficial esophageal adenocarcinoma arising from the ectopic gastric mucosa of the cervical esophagus: A case report. SHILAP Revista de lepidopterología. 3(1). e214–e214. 1 indexed citations

TADA, Naoya, Hideki Kobara, Tomoaki Tashima, et al.. (2023). Outcomes of Endoscopic Intervention Using Over-the-Scope Clips for Anastomotic Leakage Involving Secondary Fistula after Gastrointestinal Surgery: A Japanese Multicenter Case Series. Diagnostics. 13(18). 2997–2997. 1 indexed citations

Hara, Yuko, et al.. (2021). Association between Endoscopic Milk-White Mucosa, Epithelial Intracellular Lipid Droplets, and Histological Grade of Superficial Non-Ampullary Duodenal Epithelial Tumors. Diagnostics. 11(5). 769–769. 5 indexed citations

Harada, Atsushi, Naoki Shimojima, Masakuni Kobayashi, et al.. (2021). Visualization of the human enteric nervous system by probe confocal laser endomicroscopy: a first real-time observation of Hirschsprung’s disease and allied disorders. BMC Medical Imaging. 21(1). 118–118. 5 indexed citations

Dobashi, Akira, Shingo Ono, Naoto Tamai, et al.. (2021). Texture and Color Enhancement Imaging Increases Color Changes and Improves Visibility for Squamous Cell Carcinoma Suspicious Lesions in the Pharynx and Esophagus. Diagnostics. 11(11). 1971–1971. 23 indexed citations

10.

Yamasaki, Takuji, Yoshitaka Ando, Toshiyuki Sakurai, et al.. (2021). Small Neuroendocrine Tumors of the Whole Gastrointestinal Tract Performed Endoscopic or Surgical Resections Also Show Positive for Lymphovascular Invasion. Digestion. 102(6). 921–928. 2 indexed citations

11.

Shimojima, Naoki, Masakuni Kobayashi, Shunsuke Kamba, et al.. (2020). Visualization of the human enteric nervous system by confocal laser endomicroscopy in Hirschsprung's disease: An alternative to intraoperative histopathological diagnosis?. Neurogastroenterology & Motility. 32(5). e13805–e13805. 8 indexed citations

12.

Furukawa, Kenei, Shinji Onda, Ryoga Hamura, et al.. (2020). Predictive Factors and Surgical Outcomes of Stent Dysfunction After Preoperative Endoscopic Biliary Stenting in Patients Who Underwent Pancreaticoduodenectomy. Journal of Laparoendoscopic & Advanced Surgical Techniques. 30(3). 256–259.

13.

Yamada, Takuya, Masashi Hirota, Shusaku Tsutsui, et al.. (2014). Gastric endoscopic submucosal dissection under steady pressure automatically controlled endoscopy (SPACE); a multicenter randomized preclinical trial. Surgical Endoscopy. 29(9). 2748–2755. 7 indexed citations

14.

Arakawa, Hiroshi, Mitsuru Kaise, Kazuki Sumiyama, et al.. (2013). Does pulse oximetry accurately monitor a patient’s ventilation during sedated endoscopy under oxygen supplementation?. Singapore Medical Journal. 54(4). 212–215. 28 indexed citations

15.

Tamai, Naoto, Koji Matsuda, Kazuki Sumiyama, Yukinaga Yoshida, & Hisao Tajiri. (2013). Glucagon facilitates colonoscopy and reduces patient discomfort. European Journal of Gastroenterology & Hepatology. 25(5). 575–579. 12 indexed citations

16.

Sumiyama, Kazuki & Hisao Tajiri. (2013). [Current and future trends in natural orifice translumenal endoscopic surgery-related procedures: endoscopists' perspective].. PubMed. 114(6). 317–20.

17.

Dobashi, Akira, Kazuki Sumiyama, C. J. Gostout, et al.. (2013). Can mechanical balloon dissection be applied to cleave fibrotic submucosal tissues? A pilot study in a porcine model. Endoscopy. 45(8). 661–666. 5 indexed citations

18.

Imazu, Hiroo, Kazuki Sumiyama, Keiichi Ikeda, et al.. (2009). A pilot study of EUS-guided hot saline injection for induction of pancreatic tissue necrosis. Endoscopy. 41(7). 598–602. 1 indexed citations

19.

Sumiyama, Kazuki, Christopher J. Gostout, Elizabeth Rajan, et al.. (2006). In Vivo Appendicitis Model Using the Pig Uterine Horn for Development of Transgastric Appendectomy. Gastrointestinal Endoscopy. 63(5). AB236–AB236. 1 indexed citations

20.

Hattori, Asaki, Naoki Suzuki, Mitsuhiro Hayashibe, et al.. (2004). Navigation system for a developed endoscopic surgical robot system. International Congress Series. 1268. 539–544. 2 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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