Kotaro Sakai

571 total citations
20 papers, 414 citations indexed

About

Kotaro Sakai is a scholar working on Obstetrics and Gynecology, Reproductive Medicine and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Kotaro Sakai has authored 20 papers receiving a total of 414 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Obstetrics and Gynecology, 9 papers in Reproductive Medicine and 8 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Kotaro Sakai's work include Uterine Myomas and Treatments (10 papers), Maternal and fetal healthcare (7 papers) and Endometriosis Research and Treatment (5 papers). Kotaro Sakai is often cited by papers focused on Uterine Myomas and Treatments (10 papers), Maternal and fetal healthcare (7 papers) and Endometriosis Research and Treatment (5 papers). Kotaro Sakai collaborates with scholars based in Japan and Canada. Kotaro Sakai's co-authors include Akihiro Takeda, Hiromi Nakamura, Masahiko Mori, Takashi Mitsui, Sanae Imoto, W. R. Peltier, Takashi Mitsui, Fumitaka Kikkawa, Tomokazu Umezu and Kiyosumi Shibata and has published in prestigious journals such as Journal of Climate, Fertility and Sterility and Human Pathology.

In The Last Decade

Kotaro Sakai

19 papers receiving 398 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kotaro Sakai Japan 13 274 172 130 108 70 20 414
Selvan Pather Australia 14 158 0.6× 158 0.9× 73 0.6× 200 1.9× 65 0.9× 54 482
Qiongjie Zhou China 10 190 0.7× 32 0.2× 95 0.7× 34 0.3× 26 0.4× 20 344
Katharina Kieser Canada 9 258 0.9× 204 1.2× 126 1.0× 95 0.9× 87 1.2× 14 374
Zahra Najmi Iran 12 187 0.7× 135 0.8× 98 0.8× 45 0.4× 97 1.4× 45 453
Linn Håkonsen Arendt Denmark 13 260 0.9× 252 1.5× 172 1.3× 63 0.6× 139 2.0× 45 524
Russell Land Australia 12 231 0.8× 183 1.1× 22 0.2× 98 0.9× 20 0.3× 25 357
Huib A.A.M. van Vliet Netherlands 12 283 1.0× 223 1.3× 51 0.4× 68 0.6× 107 1.5× 24 458
Bruno Piras Italy 15 545 2.0× 501 2.9× 23 0.2× 211 2.0× 72 1.0× 35 782
Robert Armbrust Germany 9 107 0.4× 75 0.4× 39 0.3× 127 1.2× 38 0.5× 31 311
Laura Cattani Belgium 11 91 0.3× 19 0.1× 23 0.2× 169 1.6× 38 0.5× 40 365

Countries citing papers authored by Kotaro Sakai

Since Specialization
Citations

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

Fields of papers citing papers by Kotaro Sakai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kotaro Sakai

This figure shows the co-authorship network connecting the top 25 collaborators of Kotaro Sakai. A scholar is included among the top collaborators of Kotaro Sakai 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 Kotaro Sakai. Kotaro Sakai 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.
Fujisawa, Kazunori, Akira Murakami, & Kotaro Sakai. (2016). Numerical analysis of backward erosion by soil-water interface tracking. Japanese Geotechnical Society Special Publication. 4(4). 84–87. 1 indexed citations
2.
Takeda, Akihiro, Sanae Imoto, Kotaro Sakai, & Hiromi Nakamura. (2014). Three-dimensional computed tomographic angiography in the diagnosis and conservative management of cesarean scar pregnancy with prominent neovascularization. Taiwanese Journal of Obstetrics and Gynecology. 53(3). 385–388. 5 indexed citations
3.
Sakai, Kotaro, Hiroaki Kajiyama, Tomokazu Umezu, et al.. (2012). Is there any association between retroperitoneal lymphadenectomy and survival benefit in advanced stage epithelial ovarian carcinoma patients?. Journal of obstetrics and gynaecology research. 38(7). 1018–1023. 8 indexed citations
4.
Kajiyama, Hiroaki, Kotaro Sakai, Tomokazu Umezu, et al.. (2011). Expression of CXCR4 indicates poor prognosis in patients with clear cell carcinoma of the ovary. Human Pathology. 43(6). 904–910. 23 indexed citations
5.
Sakai, Kotaro, et al.. (2010). A Case of Colostomy Prolapse Treated by Délorme Procedure. Nihon Daicho Komonbyo Gakkai Zasshi. 63(6). 396–398. 1 indexed citations
6.
Takeda, Akihiro, et al.. (2009). Placental polyp with prominent neovascularization. Fertility and Sterility. 93(4). 1324–1326. 22 indexed citations
7.
Takeda, Akihiro, et al.. (2009). Computed tomographic angiography in diagnosis and management of placental polyp with neovascularization. Archives of Gynecology and Obstetrics. 281(5). 823–828. 13 indexed citations
8.
Takeda, Akihiro, et al.. (2009). Progressive formation of uterine arteriovenous fistula after laparoscopic-assisted myomectomy. Archives of Gynecology and Obstetrics. 280(4). 663–667. 11 indexed citations
9.
Takeda, Akihiro, Masahiko Mori, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2009). Laparoscopic Management of Ovarian Dysgerminoma Presenting with Acute Abdomen Caused by Adnexal Torsion in a 17-Year-Old Girl. Journal of Pediatric and Adolescent Gynecology. 22(1). e9–e13. 4 indexed citations
10.
Takeda, Akihiro, et al.. (2008). Late Massive Uterine Hemorrhage Caused by Ruptured Uterine Artery Pseudoaneurysm After Laparoscopic-Assisted Myomectomy. Journal of Minimally Invasive Gynecology. 15(2). 212–216. 21 indexed citations
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Takeda, Akihiro, et al.. (2008). Early diagnosis and endovascular management of uterine artery pseudoaneurysm after laparoscopic-assisted myomectomy. Fertility and Sterility. 92(4). 1487–1491. 24 indexed citations
15.
Takeda, Akihiro, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2007). Management of large cystic adnexal tumor by gasless laparoscopic-assisted surgery with wound retractor. Journal of Minimally Invasive Gynecology. 14(5). 644–650. 23 indexed citations
16.
Takeda, Akihiro, Masahiko Mori, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2007). Parasitic peritoneal leiomyomatosis diagnosed 6 years after laparoscopic myomectomy with electric tissue morcellation: Report of a case and review of the literature. Journal of Minimally Invasive Gynecology. 14(6). 770–775. 88 indexed citations
17.
Takeda, Akihiro, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2007). Wound retraction system for gasless laparoscopic-assisted myomectomy with a subcutaneous abdominal wall-lift method. Journal of Minimally Invasive Gynecology. 14(2). 240–246. 27 indexed citations
18.
Takeda, Akihiro, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2007). Laparoscopic management of juvenile cystic adenomyoma of the uterus: Report of two cases and review of the literature. Journal of Minimally Invasive Gynecology. 14(3). 370–374. 47 indexed citations
19.
Takeda, Akihiro, Kotaro Sakai, Takashi Mitsui, & Hiromi Nakamura. (2007). Management of Ruptured Corpus Luteum Cyst of Pregnancy Occurring in a 15-Year-Old Girl by Laparoscopic Surgery with Intraoperative Autologous Blood Transfusion. Journal of Pediatric and Adolescent Gynecology. 20(2). 97–100. 8 indexed citations
20.
Sakai, Kotaro & W. R. Peltier. (1999). A Dynamical Systems Model of the Dansgaard–Oeschger Oscillation and the Origin of the Bond Cycle. Journal of Climate. 12(8). 2238–2255. 28 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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