Ryu Shimada

1.1k total citations
48 papers, 811 citations indexed

About

Ryu Shimada is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryu Shimada has authored 48 papers receiving a total of 811 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Oncology, 23 papers in Surgery and 8 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryu Shimada's work include Colorectal Cancer Surgical Treatments (9 papers), Colorectal and Anal Carcinomas (8 papers) and Colorectal Cancer Treatments and Studies (7 papers). Ryu Shimada is often cited by papers focused on Colorectal Cancer Surgical Treatments (9 papers), Colorectal and Anal Carcinomas (8 papers) and Colorectal Cancer Treatments and Studies (7 papers). Ryu Shimada collaborates with scholars based in Japan and United States. Ryu Shimada's co-authors include Atsushi Horiuchi, Hisae Iinuma, Hajime Shibuya, Toshiaki Watanabe, Keiji Matsuda, Keijiro Nozawa, Tamuro Hayama, Yojiro Hashiguchi, Yoshihisa Fukushima and Toshiaki Watanabe and has published in prestigious journals such as SHILAP Revista de lepidopterología, Cancer and Scientific Reports.

In The Last Decade

Ryu Shimada

46 papers receiving 801 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryu Shimada Japan 15 396 289 281 206 141 48 811
Keijiro Nozawa Japan 18 677 1.7× 192 0.7× 201 0.7× 303 1.5× 246 1.7× 70 1.0k
Xiangbing Deng China 17 524 1.3× 197 0.7× 367 1.3× 337 1.6× 185 1.3× 81 1.0k
Ping’an Ding China 16 286 0.7× 367 1.3× 436 1.6× 172 0.8× 285 2.0× 68 999
Shiki Fujino Japan 14 339 0.9× 108 0.4× 145 0.5× 262 1.3× 124 0.9× 83 675
Yukiko Niwa Japan 20 402 1.0× 134 0.5× 223 0.8× 405 2.0× 380 2.7× 41 913
Isacco Maretto Italy 17 723 1.8× 244 0.8× 198 0.7× 423 2.1× 188 1.3× 30 1.0k
Keigo Komine Japan 14 295 0.7× 169 0.6× 155 0.6× 107 0.5× 151 1.1× 53 585
Zhixun Zhao China 15 324 0.8× 242 0.8× 245 0.9× 176 0.9× 163 1.2× 46 688
Taisuke Yagi Japan 14 546 1.4× 107 0.4× 181 0.6× 391 1.9× 314 2.2× 29 936
Niels Henrik Holländer Denmark 13 481 1.2× 383 1.3× 314 1.1× 157 0.8× 119 0.8× 44 838

Countries citing papers authored by Ryu Shimada

Since Specialization
Citations

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

Fields of papers citing papers by Ryu Shimada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryu Shimada

This figure shows the co-authorship network connecting the top 25 collaborators of Ryu Shimada. A scholar is included among the top collaborators of Ryu Shimada 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 Ryu Shimada. Ryu Shimada 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.
Hayama, Tamuro, Yojiro Hashiguchi, Yoshihisa Fukushima, et al.. (2023). Prognostic Value ofKRASExon-specific Mutations in Patients With Colorectal Cancer. Anticancer Research. 43(4). 1563–1568. 5 indexed citations
2.
Hayama, Tamuro, Yojiro Hashiguchi, Tsuyoshi Ozawa, et al.. (2022). The preoperative geriatric nutritional risk index (GNRI) is an independent prognostic factor in elderly patients underwent curative resection for colorectal cancer. Scientific Reports. 12(1). 3682–3682. 46 indexed citations
3.
Hayama, Tamuro, Tsuyoshi Ozawa, Rie Kondo, et al.. (2021). Impact of Colon Cancer Location on the Prognostic Significance of Nutritional Indexes and Inflammatory Markers. In Vivo. 35(2). 1261–1269. 8 indexed citations
4.
Shimada, Ryu, Makoto Yamasaki, Koji Tanaka, et al.. (2021). Changes in the quality of life score following preoperative chemotherapy in elderly patients with esophageal cancer. Esophagus. 19(1). 113–119. 4 indexed citations
5.
Matsuda, Keiji, Yojiro Hashiguchi, Yuka Okada, et al.. (2020). Afferent limb syndrome after total proctocolectomy and ileal pouch-anal canal anastomosis. SHILAP Revista de lepidopterología. 6(1). 209–209. 4 indexed citations
6.
Hayama, Tamuro, Tsuyoshi Ozawa, Yuka Okada, et al.. (2020). The pretreatment Controlling Nutritional Status (CONUT) score is an independent prognostic factor in patients undergoing resection for colorectal cancer. Scientific Reports. 10(1). 13239–13239. 37 indexed citations
7.
Matsuda, Keiji, Yojiro Hashiguchi, Mitsuo Tsukamoto, et al.. (2019). A case report of successful management of fulminant Clostridium difficile colitis post-ileostomy reversal with administration of vancomycin through a transverse colostomy. SHILAP Revista de lepidopterología. 5(1). 181–181. 1 indexed citations
8.
Hayama, Tamuro, Yojiro Hashiguchi, Yuka Okada, et al.. (2019). A case of intussusception developed at the site of ileocolic anastomosis after laparoscopic right hemicolectomy. BMC Surgery. 19(1). 74–74. 2 indexed citations
9.
Hayama, Tamuro, Yojiro Hashiguchi, Yuka Okada, et al.. (2019). Significance of the 7th postoperative day neutrophil-to-lymphocyte ratio in colorectal cancer. International Journal of Colorectal Disease. 35(1). 119–124. 28 indexed citations
10.
Hayama, Tamuro, Yojiro Hashiguchi, Koichi Okamoto, et al.. (2019). G12V and G12C mutations in the gene KRAS are associated with a poorer prognosis in primary colorectal cancer. International Journal of Colorectal Disease. 34(8). 1491–1496. 43 indexed citations
11.
OZAWA, Tsuyoshi, Yojiro Hashiguchi, Yoshihisa Fukushima, et al.. (2019). Angiotensin I-converting enzyme inhibitors/angiotensin II receptor blockers may reduce tumor recurrence in left-sided and early colorectal cancers. International Journal of Colorectal Disease. 34(10). 1731–1739. 26 indexed citations
12.
Okada, Yuka, Mitsuo Tsukamoto, Ryu Shimada, et al.. (2018). A rare case of perivascular epithelioid cell tumor (PEComa) of the greater omentum. World Journal of Surgical Oncology. 16(1). 113–113. 13 indexed citations
13.
Tsuchiya, Takeshi, Mitsuo Tsukamoto, Yoshihisa Fukushima, et al.. (2015). A case of IgG4-related disease coexisted with rectal cancer. Surgical Case Reports. 1(1). 118–118. 3 indexed citations
14.
Ishihara, Soichiro, Yoshihisa Fukushima, Atsushi Horiuchi, et al.. (2014). Number of Lymph Nodes in Rectal Cancer is Correlated with Response to Preoperative Chemoradiotherapy but is not Associated with Patient Survival.. PubMed. 61(132). 1000–7. 3 indexed citations
15.
Shimada, Ryu, et al.. (2012). Prognostic significance of CTCs and CSCs of tumor drainage vein blood in Dukes' stage B and C colorectal cancer patients. Oncology Reports. 27(4). 947–953. 45 indexed citations
16.
Ishihara, Soichiro, Toshiaki Watanabe, Ryu Shimada, et al.. (2011). Tumor location is a prognostic factor in poorly differentiated adenocarcinoma, mucinous adenocarcinoma, and signet-ring cell carcinoma of the colon. International Journal of Colorectal Disease. 27(3). 371–379. 46 indexed citations
17.
Shibuya, Hajime, Keiji Matsuda, Ryu Shimada, et al.. (2011). Invasive Micropapillary Carcinoma of the Ascending Colon—a Report of a Case. International Surgery. 96(1). 82–86. 4 indexed citations
18.
Ishihara, Soichiro, Hisae Iinuma, Yoshihisa Fukushima, et al.. (2011). Radiation-Induced Apoptosis of Peripheral Blood Lymphocytes is Correlated with Histological Regression of Rectal Cancer in Response to Preoperative Chemoradiotherapy. Annals of Surgical Oncology. 19(4). 1192–1198. 14 indexed citations
19.
Shibuya, Hajime, Hisae Iinuma, Ryu Shimada, Atsushi Horiuchi, & Toshiaki Watanabe. (2010). Clinicopathological and Prognostic Value of MicroRNA-21 and MicroRNA-155 in Colorectal Cancer. Oncology. 79(3-4). 313–320. 216 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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