Ko Takachi

1.2k total citations
42 papers, 855 citations indexed

About

Ko Takachi is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Ko Takachi has authored 42 papers receiving a total of 855 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Surgery, 22 papers in Pulmonary and Respiratory Medicine and 8 papers in Oncology. Recurrent topics in Ko Takachi's work include Gastric Cancer Management and Outcomes (16 papers), Esophageal Cancer Research and Treatment (10 papers) and Metastasis and carcinoma case studies (9 papers). Ko Takachi is often cited by papers focused on Gastric Cancer Management and Outcomes (16 papers), Esophageal Cancer Research and Treatment (10 papers) and Metastasis and carcinoma case studies (9 papers). Ko Takachi collaborates with scholars based in Japan, United Kingdom and United States. Ko Takachi's co-authors include Isao Miyashiro, Osamu Ishikawa, Yo Sasaki, Hiroaki Ohigashi, Yuichiro� Doki, Shingi Imaoka, Masahiko Yano, Kohei Murata, Hidetoshi Eguchi and Kentaro Kishi and has published in prestigious journals such as Scientific Reports, The American Journal of Surgery and Journal of the American College of Surgeons.

In The Last Decade

Ko Takachi

39 papers receiving 835 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ko Takachi Japan 17 513 433 215 95 90 42 855
Tae Yong Jeon South Korea 24 594 1.2× 603 1.4× 220 1.0× 275 2.9× 125 1.4× 55 1.4k
Tadashi Katsuramaki Japan 17 443 0.9× 94 0.2× 197 0.9× 165 1.7× 109 1.2× 59 895
Ravin Kumar United States 20 864 1.7× 165 0.4× 434 2.0× 56 0.6× 65 0.7× 32 1.2k
Thai Pham United States 19 1.0k 2.0× 338 0.8× 141 0.7× 194 2.0× 42 0.5× 58 1.3k
Makoto Yamada Japan 19 344 0.7× 221 0.5× 76 0.4× 63 0.7× 51 0.6× 73 873
Micheal Tadros United States 11 153 0.3× 117 0.3× 128 0.6× 42 0.4× 53 0.6× 54 427
Kazutoyo Morita Japan 20 599 1.2× 233 0.5× 192 0.9× 172 1.8× 67 0.7× 84 1.2k
Lihu Gu China 17 426 0.8× 432 1.0× 436 2.0× 119 1.3× 104 1.2× 41 1.0k
Pedro Bastos Portugal 9 426 0.8× 356 0.8× 421 2.0× 25 0.3× 24 0.3× 42 708
Meliha Korkmaz Türkiye 14 178 0.3× 158 0.4× 33 0.2× 68 0.7× 18 0.2× 79 639

Countries citing papers authored by Ko Takachi

Since Specialization
Citations

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

Fields of papers citing papers by Ko Takachi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ko Takachi

This figure shows the co-authorship network connecting the top 25 collaborators of Ko Takachi. A scholar is included among the top collaborators of Ko Takachi 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 Ko Takachi. Ko Takachi 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.
Nojima, Satoshi, Etsuo A. Susaki, Hiroyoshi Takemoto, et al.. (2017). CUBIC pathology: three-dimensional imaging for pathological diagnosis. Scientific Reports. 7(1). 9269–9269. 99 indexed citations
2.
Kobayashi, Kenji, et al.. (2014). The Impact of Distant Metastasis to a Kugel-mesh Prosthesis in a Gastric Cancer Patient^|^mdash;Report of a Case^|^mdash;. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 75(4). 963–967. 1 indexed citations
3.
Kobayashi, Kenji, Risa Watanabe, Takashi Matsumoto, et al.. (2013). [A case of SPT therapy( S-1+CDDP+trastuzumab) was successful for HER2-positive gastric cancer accompanied by distant lymph node metastasis].. PubMed. 40(12). 2256–8.
4.
Endo, Shunji, Shuji Takiguchi, Yasuhiro Miyazaki, et al.. (2013). Efficacy of endoscopic gastroduodenal stenting for gastric outlet obstruction due to unresectable advanced gastric cancer: A prospective multicenter study. Journal of Surgical Oncology. 109(3). 208–212. 16 indexed citations
5.
Miyashiro, Isao, Masahiro Hiratsuka, Kentaro Kishi, et al.. (2012). Intraoperative Diagnosis Using Sentinel Node Biopsy with Indocyanine Green Dye in Gastric Cancer Surgery: An Institutional Trial by Experienced Surgeons. Annals of Surgical Oncology. 20(2). 542–546. 34 indexed citations
6.
Kanzaki, Ryu, Masahiko Yano, Ko Takachi, et al.. (2009). Candida esophagitis complicated by an esophago-airway fistula: Report of a case. Surgery Today. 39(11). 972–978. 8 indexed citations
7.
Miyoshi, Norikatsu, Masahiko Yano, Ko Takachi, et al.. (2009). Myelotoxicity of preoperative chemoradiotherapy is a significant determinant of poor prognosis in patients with T4 esophageal cancer. Journal of Surgical Oncology. 99(5). 302–306. 24 indexed citations
8.
Ohigashi, Hiroaki, Osamu Ishikawa, Hidetoshi Eguchi, et al.. (2008). A simple and safe anastomosis in pancreaticogastrostomy using mattress sutures. The American Journal of Surgery. 196(1). 130–134. 18 indexed citations
9.
Tomimaru, Yoshito, Masahiko Yano, Ko Takachi, et al.. (2007). Correlation between pretherapeutic d-dimer levels and response to neoadjuvant chemotherapy in patients with advanced esophageal cancer. Diseases of the Esophagus. 21(4). 281–287. 14 indexed citations
10.
Yano, Masahiko, Ko Takachi, Yuichiro� Doki, et al.. (2006). Preoperative chemotherapy for clinically node-positive patients with squamous cell carcinoma of the esophagus. Diseases of the Esophagus. 19(3). 158–163. 35 indexed citations
11.
Akita, Hirofumi, Yuichiro� Doki, Hiroshi Miyata, et al.. (2006). Clinical significance of the second cycle response to cisplatin-based chemotherapy as preoperative treatment for esophageal squamous cell carcinoma. Journal of Surgical Oncology. 93(5). 401–409. 27 indexed citations
12.
Doki, Yuichiro, Ko Takachi, Osamu Ishikawa, et al.. (2006). Ghrelin reduction after esophageal substitution and its correlation to postoperative body weight loss in esophageal cancer patients. Surgery. 139(6). 797–805. 47 indexed citations
13.
Uemura, Mamoru, Yuichiro� Doki, Osamu Ishikawa, et al.. (2005). A Case of Chylothorax after Radical Surgery for Esophageal Cancer Cured by Lipiodol Lymphangiography. The Japanese Journal of Gastroenterological Surgery. 38(1). 7–12. 6 indexed citations
14.
Doki, Yuichiro�, Ko Takachi, Osamu Ishikawa, et al.. (2005). Reduced tumor vessel density and high expression of glucose transporter 1 suggest tumor hypoxia of squamous cell carcinoma of the esophagus surviving after radiotherapy. Surgery. 137(5). 536–544. 20 indexed citations
15.
Tomimaru, Yoshito, Masahiko Yano, Ko Takachi, et al.. (2005). Plasma D-Dimer Levels Show Correlation with Number of Lymph Node Metastases in Patients with Esophageal Cancer. Journal of the American College of Surgeons. 202(1). 139–145. 31 indexed citations
16.
17.
Noda, Takehiro, Yo Sasaki, Terumasa Yamada, et al.. (2005). Adult Capillary Hemangioma of the Liver: Report of a Case. Surgery Today. 35(9). 796–799. 11 indexed citations
18.
Takachi, Ko, Yuichiro� Doki, Osamu Ishikawa, et al.. (2005). Postoperative Ghrelin Levels and Delayed Recovery from Body Weight Loss after Distal or Total Gastrectomy. Journal of Surgical Research. 130(1). 1–7. 87 indexed citations
19.
Akita, Hirofumi, Yuichiro� Doki, Osamu Ishikawa, et al.. (2004). Total removal of the posterior mediastinal gastric conduit due to gastric cancer after esophagectomy. Journal of Surgical Oncology. 85(4). 204–208. 11 indexed citations
20.
Ishikawa, Osamu, Hiroaki Ohigashi, Hidetoshi Eguchi, et al.. (2004). Long-term follow-up of glucose tolerance function after pancreaticoduodenectomy: comparison between pancreaticogastrostomy and pancreaticojejunostomy. Surgery. 136(3). 617–623. 68 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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