Keijiro Sunada

4.7k total citations · 1 hit paper
111 papers, 3.1k citations indexed

About

Keijiro Sunada is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Keijiro Sunada has authored 111 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Surgery, 70 papers in Gastroenterology and 50 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Keijiro Sunada's work include Gastrointestinal Tumor Research and Treatment (54 papers), Gastric Cancer Management and Outcomes (45 papers) and Gastrointestinal disorders and treatments (43 papers). Keijiro Sunada is often cited by papers focused on Gastrointestinal Tumor Research and Treatment (54 papers), Gastric Cancer Management and Outcomes (45 papers) and Gastrointestinal disorders and treatments (43 papers). Keijiro Sunada collaborates with scholars based in Japan, Canada and United Kingdom. Keijiro Sunada's co-authors include Hironori Yamamoto, Kentaro Sugano, Yoshikazu Hayashi, Tomonori Yano, Tomohiko Miyata, Kiichi Satoh, Alan Kawarai Lefor, Hiroshi Kawata, Hiroto Kita and Satoshi Shinozaki and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Biochemical and Biophysical Research Communications.

In The Last Decade

Keijiro Sunada

104 papers receiving 3.0k citations

Hit Papers

Clinical outcomes of double-balloon endoscopy for the dia... 2004 2026 2011 2018 2004 100 200 300 400
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.

  1. Clinical outcomes of double-balloon endoscopy for the diagnosis and treatment of small-intestinal diseases
    2004 468 citations Hiroto Kita, Keijiro Sunada et al. profile →

Peers

Keijiro Sunada
Osamu Goto Japan
Andrea May Germany
Tomohiko Miyata Japan
Koji Higashino Japan
Charles Dye United States
Kenichiro Imai Japan
Satoshi Nimura Japan
Takashi Nagahama Japan
Takashi Hisabe Japan
Gaius Longcroft‐Wheaton United Kingdom
Osamu Goto Japan
Keijiro Sunada
Citations per year, relative to Keijiro Sunada Keijiro Sunada (= 1×) peers Osamu Goto

Countries citing papers authored by Keijiro Sunada

Since Specialization
Citations

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

Fields of papers citing papers by Keijiro Sunada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keijiro Sunada

This figure shows the co-authorship network connecting the top 25 collaborators of Keijiro Sunada. A scholar is included among the top collaborators of Keijiro Sunada 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 Keijiro Sunada. Keijiro Sunada 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
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Nemoto, Daiki, Tomohiro Kurokawa, Takeshi Yamashina, et al.. (2024). Multicenter prospective randomized controlled clinical trial comparing the pocket-creation method with and without single-clip traction of colonic endoscopic submucosal dissection. Endoscopy. 56(8). 583–593. 7 indexed citations
3.
Nagayama, Manabu, Tomonori Yano, Hirotsugu Sakamoto, et al.. (2023). Maintenance of complete mucosal healing is associated with avoiding restenosis after endoscopic balloon dilation of Crohn's disease‐related small intestinal strictures. SHILAP Revista de lepidopterología. 3(1). e239–e239. 3 indexed citations
4.
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Okada, Masahiro, Satoshi Shinozaki, Yoshikazu Hayashi, et al.. (2022). Underwater Endoscopic Mucosal Resection of Small Rectal Neuroendocrine Tumors. Frontiers in Medicine. 9. 835013–835013. 3 indexed citations
6.
Sakamoto, Hirotsugu, Tomonori Yano, Keijiro Sunada, et al.. (2017). Mucosal healing of Crohn’s disease in a patient with concurrent systemic lupus erythematosus using infliximab. Clinical Journal of Gastroenterology. 10(3). 244–249. 3 indexed citations
7.
Hayashi, Yoshikazu, Satoshi Shinozaki, Keijiro Sunada, et al.. (2015). Efficacy and safety of endoscopic submucosal dissection for superficial colorectal tumors more than 50 mm in diameter. Gastrointestinal Endoscopy. 83(3). 602–607. 45 indexed citations
8.
Sunada, Keijiro, Satoshi Shinozaki, Manabu Nagayama, et al.. (2015). Long-term Outcomes in Patients with Small Intestinal Strictures Secondary to Crohnʼs Disease After Double-balloon Endoscopy-assisted Balloon Dilation. Inflammatory Bowel Diseases. 22(2). 380–386. 52 indexed citations
9.
Mıura, Yoshimasa, Hironori Yamamoto, Keijiro Sunada, et al.. (2010). Reduction of ileoileal intussusception by using double-balloon endoscopy in Peutz-Jeghers syndrome (with video). Gastrointestinal Endoscopy. 72(3). 658–659. 20 indexed citations
10.
Nishimura, Naoyuki, Hironori Yamamoto, Tomonori Yano, et al.. (2009). Safety and efficacy of double-balloon enteroscopy in pediatric patients. Gastrointestinal Endoscopy. 71(2). 287–294. 50 indexed citations
11.
Togashi, Kazutomo, Hiroyuki Osawa, Koji Koinuma, et al.. (2009). A comparison of conventional endoscopy, chromoendoscopy, and the optimal-band imaging system for the differentiation of neoplastic and non-neoplastic colonic polyps. Gastrointestinal Endoscopy. 69(3). 734–741. 72 indexed citations
12.
Sunada, Keijiro & Hironori Yamamoto. (2009). Double-balloon endoscopy: past, present, and future. Journal of Gastroenterology. 44(1). 1–12. 48 indexed citations
13.
Taguchi, Hiroki, Hironori Yamamoto, Tomohiko Miyata, et al.. (2008). In vivo diagnosis of whipworm (Trichuris trichiura) with high-definition magnifying colonoscope (with video). Gastrointestinal Endoscopy. 68(2). 376–377. 3 indexed citations
14.
Kita, Hiroto, Hironori Yamamoto, Tomonori Yano, et al.. (2007). Double balloon endoscopy in two hundred fifty cases for the diagnosis and treatment of small intestinal disorders. Inflammopharmacology. 15(2). 74–77. 44 indexed citations
15.
Nishimura, Naoyuki, Tomonori Yano, Keijiro Sunada, & Hironori Yamamoto. (2006). Double-Balloon Endoscopy. PubMed. 68(7). 1273–6. 7 indexed citations
16.
Yamamoto, Hironori, Hiroto Kita, Keijiro Sunada, et al.. (2005). CURRENT STATUS OF ENTEROSCOPY. Acta gastro-enterologica belgica. 47(10). 2353–2360. 1 indexed citations
17.
Iwamoto, Michiko, Hironori Yamamoto, Hiroto Kita, et al.. (2005). Double-balloon endoscopy for ileal GI stromal tumor. Gastrointestinal Endoscopy. 62(3). 440–441. 2 indexed citations
18.
Kita, Hiroto, Keijiro Sunada, Tomonori Yano, et al.. (2004). Small intestine endoscopy.. 93(6). 1189–1199. 1 indexed citations
19.
Kuno, Akiko, Hironori Yamamoto, Hiroto Kita, et al.. (2004). Double-balloon enteroscopy through a Roux-en-Y anastomosis for EMR of an early carcinoma in the afferent duodenal limb. Gastrointestinal Endoscopy. 60(6). 1032–1034. 49 indexed citations
20.

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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