Keigo Ashida

1.5k total citations
63 papers, 1.2k citations indexed

About

Keigo Ashida is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Keigo Ashida has authored 63 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Oncology, 31 papers in Surgery and 28 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Keigo Ashida's work include Gastric Cancer Management and Outcomes (20 papers), Inflammatory Biomarkers in Disease Prognosis (17 papers) and Colorectal Cancer Surgical Treatments (9 papers). Keigo Ashida is often cited by papers focused on Gastric Cancer Management and Outcomes (20 papers), Inflammatory Biomarkers in Disease Prognosis (17 papers) and Colorectal Cancer Surgical Treatments (9 papers). Keigo Ashida collaborates with scholars based in Japan and Guinea. Keigo Ashida's co-authors include Yoshiyuki Fujiwara, Hiroaki Saito, Tadashi Terada, Tomoyuki Matsunaga, Yukisato Kitamura, Yoji Fukumoto, Yusuke Kono, Yuji Shishido, Tomohiro Osaki and Manabu Yamamoto and has published in prestigious journals such as SHILAP Revista de lepidopterología, Hepatology and Scientific Reports.

In The Last Decade

Keigo Ashida

62 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Keigo Ashida Japan	21	629	400	309	192	154	63	1.2k
Yuki Kitano Japan	20	813 1.3×	578 1.4×	344 1.1×	201 1.0×	294 1.9×	92	1.5k
Sung‐Hyun Kim South Korea	17	371 0.6×	136 0.3×	223 0.7×	213 1.1×	95 0.6×	105	1.0k
Emanuele Naglieri Italy	15	336 0.5×	245 0.6×	200 0.6×	210 1.1×	141 0.9×	42	1.0k
Noriyuki Hirahara Japan	23	686 1.1×	530 1.3×	461 1.5×	112 0.6×	122 0.8×	84	1.2k
Rei Suzuki Japan	19	505 0.8×	476 1.2×	322 1.0×	248 1.3×	165 1.1×	134	1.1k
Sun A. Kim South Korea	21	1.3k 2.1×	501 1.3×	886 2.9×	435 2.3×	245 1.6×	62	2.2k
Xiaowei Sun China	23	528 0.8×	543 1.4×	665 2.2×	201 1.0×	239 1.6×	56	1.4k
Yong Jung Song South Korea	18	247 0.4×	341 0.9×	212 0.7×	202 1.1×	90 0.6×	76	1.0k
Cheng‐Jen Ma Taiwan	20	689 1.1×	463 1.2×	290 0.9×	211 1.1×	119 0.8×	74	1.1k
Luigi Sofo Italy	20	912 1.4×	763 1.9×	242 0.8×	92 0.5×	206 1.3×	57	1.6k

Countries citing papers authored by Keigo Ashida

Since Specialization

Citations

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

Fields of papers citing papers by Keigo Ashida

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keigo Ashida

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

Matsunaga, Tomoyuki, Shota Shimizu, Yuji Shishido, et al.. (2024). Change and predictors of body composition after gastrectomy for gastric cancer during first postoperative year. Journal of Gastrointestinal Surgery. 29(2). 101931–101931. 1 indexed citations

Tatebe, Shigeru, et al.. (2022). What is necessary to shorten the operative time in initial introduction of robotic gastrectomy for gastric cancer?. Asian Journal of Endoscopic Surgery. 15(3). 495–504. 2 indexed citations

Matsunaga, Tomoyuki, Yuji Shishido, Kozo Miyatani, et al.. (2022). Impact of gastrectomy on body composition within 1 month in patients with gastric cancer. Surgery Today. 53(7). 834–844. 6 indexed citations

Tajima, Yosuke, Tsunekazu Hanai, Hidetoshi Katsuno, et al.. (2021). Robotic low anterior resection for rectal cancer with side-to-end anastomosis in a patient with anal stenosis. World Journal of Surgical Oncology. 19(1). 14–14. 1 indexed citations

Saito, Hiroaki, Shota Shimizu, Yusuke Kono, et al.. (2019). Increased regulatory B cells are involved in immune evasion in patients with gastric cancer. Scientific Reports. 9(1). 13083–13083. 95 indexed citations

Yamamoto, Manabu, Hiroaki Saito, Tomoyuki Matsunaga, et al.. (2019). Estimation of Physiological Ability and Surgical Stress Score Is a Useful Prognostic Indicator for Elderly Patients with Colorectal Cancer. Digestive Surgery. 37(2). 145–153. 11 indexed citations

Saito, Hiroaki, Teruhisa Sakamoto, Masaki Morimoto, et al.. (2019). Preoperative Albumin-Bilirubin Grade as a Useful Prognostic Indicator in Patients With Pancreatic Cancer. Anticancer Research. 39(3). 1441–1446. 28 indexed citations

Yamamoto, Manabu, Hiroaki Saito, Teruhisa Sakamoto, et al.. (2018). Prognostic value of the combination of pre- and postoperative C-reactive protein in colorectal cancer patients. Surgery Today. 48(11). 986–993. 18 indexed citations

Yamamoto, Manabu, et al.. (2018). Combined Pre- and Postoperative Lymphocyte Count Accurately Predicts Outcomes of Patients with Colorectal Cancer. Digestive Surgery. 36(6). 487–494. 15 indexed citations

10.

Sakamoto, Teruhisa, Hiroaki Saito, Masaki Morimoto, et al.. (2018). The Combination of Neutrophil–to–lymphocyte Ratio and Serum Carbohydrate Antigen 19-9 Level as a Prognostic Indicator in Patients with Recurrent Pancreatic Cancer. Anticancer Research. 38(9). 5497–5503. 12 indexed citations

11.

Saito, Hiroaki, Yusuke Kono, Yuki Murakami, et al.. (2018). Highly Activated PD-1/PD-L1 Pathway in Gastric Cancer with PD-L1 Expression. Anticancer Research. 38(1). 107–112. 43 indexed citations

12.

Sakamoto, Teruhisa, Soichiro Honjo, Masaki Morimoto, et al.. (2018). Successful resection of a slow-growing synchronous pulmonary metastasis from distal cholangiocarcinoma resected 3.5 years after initial surgery: a case report. Journal of Medical Case Reports. 12(1). 136–136. 3 indexed citations

13.

Murakami, Yuki, Hiroaki Saito, Yusuke Kono, et al.. (2017). Combined analysis of the preoperative and postoperative prognostic nutritional index offers a precise predictor of the prognosis of patients with gastric cancer. Surgery Today. 48(4). 395–403. 29 indexed citations

14.

Saito, Hiroaki, Keigo Ashida, Manabu Yamamoto, et al.. (2017). Resection of rectal cancer resembling submucosal tumor that was preoperatively diagnosed with endoscopic ultrasound-guided biopsy. SHILAP Revista de lepidopterología. 3(1). 84–84. 1 indexed citations

15.

Tsubota, Toshiaki, et al.. (2017). WNT/β-Catenin Signaling Inhibitor IC-2 Suppresses Sphere Formation and Sensitizes Colorectal Cancer Cells to 5-Fluorouracil. Anticancer Research. 37(8). 4085–4091. 29 indexed citations

16.

Miyatani, Kozo, Hiroaki Saito, Yusuke Kono, et al.. (2017). Combined analysis of the pre- and postoperative neutrophil–lymphocyte ratio predicts the outcomes of patients with gastric cancer. Surgery Today. 48(3). 300–307. 38 indexed citations

17.

Ikeguchi, Masahide & Keigo Ashida. (2017). Prognostic Significance of C-reactive Protein/Albumin Ratio in Patients with Locally Advanced Unresectable Colorectal Cancer. Indian Journal of Surgical Oncology. 8(3). 263–266. 1 indexed citations

18.

Ikeguchi, Masahide, et al.. (2014). Inflammation-based prognostic scores and nutritional prognostic index in patients with locally-advanced unresectable colorectal cancer. World Journal of Surgical Oncology. 12(1). 210–210. 20 indexed citations

19.

Ikeguchi, Masahide, Manabu Yamamoto, Yosuke Arai, et al.. (2011). Fucoidan reduces the toxicities of chemotherapy for patients with unresectable advanced or recurrent colorectal cancer. Oncology Letters. 2(2). 319–322. 87 indexed citations

20.

Terada, Tadashi, Yukisato Kitamura, Keigo Ashida, et al.. (1997). Expression of pancreatic digestive enzymes in normal and pathologic epithelial cells of the human gastrointestinal system. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 431(3). 195–203. 32 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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