Chikako Hirashima

1.1k total citations
42 papers, 894 citations indexed

About

Chikako Hirashima is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health and Immunology. According to data from OpenAlex, Chikako Hirashima has authored 42 papers receiving a total of 894 indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Obstetrics and Gynecology, 24 papers in Pediatrics, Perinatology and Child Health and 17 papers in Immunology. Recurrent topics in Chikako Hirashima's work include Pregnancy and preeclampsia studies (36 papers), Birth, Development, and Health (24 papers) and Reproductive System and Pregnancy (16 papers). Chikako Hirashima is often cited by papers focused on Pregnancy and preeclampsia studies (36 papers), Birth, Development, and Health (24 papers) and Reproductive System and Pregnancy (16 papers). Chikako Hirashima collaborates with scholars based in Japan and United States. Chikako Hirashima's co-authors include Akihide Ohkuchi, Shigeki Matsubara, Kayo Takahashi, Hirotada Suzuki, Mitsuaki Suzuki, Rie Usui, Kazuomi Kario, Takashi Watanabe, Mika Yoshida and Toshihiro Takizawa and has published in prestigious journals such as Hypertension, Journal of Hypertension and European Journal of Clinical Microbiology & Infectious Diseases.

In The Last Decade

Chikako Hirashima

41 papers receiving 873 citations

Peers

Chikako Hirashima
Kayo Takahashi Japan
Maria Schoedl Germany
Deirdre Allegranza Switzerland
K. Leslie United Kingdom
Samantha J. Benton Canada
Abdulla Al‐Khan United States
Frédéric Debiève Belgium
Miğraci Tosun Türkiye
János Rigó Hungary
Paula Corrêa Chile
Kayo Takahashi Japan
Chikako Hirashima
Citations per year, relative to Chikako Hirashima Chikako Hirashima (= 1×) peers Kayo Takahashi

Countries citing papers authored by Chikako Hirashima

Since Specialization
Citations

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

Fields of papers citing papers by Chikako Hirashima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chikako Hirashima

This figure shows the co-authorship network connecting the top 25 collaborators of Chikako Hirashima. A scholar is included among the top collaborators of Chikako Hirashima 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 Chikako Hirashima. Chikako Hirashima 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.
2.
Ohkuchi, Akihide, Kayo Takahashi, Chikako Hirashima, et al.. (2023). Automated electrochemiluminescence immunoassay for serum PlGF levels in women with singleton pregnancy at 9–13 weeks of gestation predicts preterm preeclampsia: a retrospective cohort study. Hypertension Research. 47(5). 1196–1207. 1 indexed citations
3.
Ohkuchi, Akihide, Chikako Hirashima, Hirotada Suzuki, et al.. (2019). Temporary hypertension and white coat hypertension in the first trimester as risk factors for preeclampsia. Hypertension Research. 42(12). 2002–2012. 15 indexed citations
4.
Hirashima, Chikako, Hirotada Suzuki, Hironori Takahashi, et al.. (2018). Serum soluble LIGHT in the early third trimester as a novel biomarker for predicting late-onset preeclampsia. Pregnancy Hypertension. 14. 174–176. 5 indexed citations
5.
6.
Suzuki, Yu, Yukari Yada, Yumi Kono, et al.. (2018). Vaginal Ureaplasma species increase chorioamnionitis in very preterm infants with preterm premature rupture of the membranes at < 28 weeks of gestation. European Journal of Clinical Microbiology & Infectious Diseases. 37(12). 2371–2380. 13 indexed citations
7.
Hirashima, Chikako, Akihide Ohkuchi, Kayo Takahashi, et al.. (2017). Independent risk factors for a small placenta and a small‐for‐gestational‐age infant at 35–41 weeks of gestation: An association with circulating angiogenesis‐related factor levels at 19–31 weeks of gestation. Journal of obstetrics and gynaecology research. 43(8). 1285–1292. 3 indexed citations
8.
Eguchi, Katsumi, Akihide Ohkuchi, Chikako Hirashima, et al.. (2015). Ambulatory BP monitoring and clinic BP in predicting small-for-gestational-age infants during pregnancy. Journal of Human Hypertension. 30(1). 62–67. 18 indexed citations
9.
Hirashima, Chikako, Akihide Ohkuchi, Kayo Takahashi, et al.. (2014). A novel three-step approach for predicting the imminent onset of preeclampsia within 4 weeks after blood sampling at 19–31 weeks of gestation. Hypertension Research. 37(6). 519–525. 14 indexed citations
10.
Ohkuchi, Akihide, Chikako Hirashima, Kayo Takahashi, et al.. (2014). A trio of risk factors for the onset of preeclampsia in the second and early third trimesters. Pregnancy Hypertension. 4(3). 224–230. 4 indexed citations
11.
Hirashima, Chikako, Akihide Ohkuchi, Hirotada Suzuki, et al.. (2013). Additive effects of mean blood pressure and bilateral notching in the second trimester on subsequent angiogenesis-related factors. Hypertension Research. 37(1). 76–81. 5 indexed citations
12.
13.
Ohkuchi, Akihide, Chikako Hirashima, Hirotada Suzuki, et al.. (2010). Evaluation of a new and automated electrochemiluminescence immunoassay for plasma sFlt-1 and PlGF levels in women with preeclampsia. Hypertension Research. 33(5). 422–427. 75 indexed citations
14.
Hirashima, Chikako, Akihide Ohkuchi, Kayo Takahashi, et al.. (2010). Gestational hypertension as a subclinical preeclampsia in view of serum levels of angiogenesis-related factors. Hypertension Research. 34(2). 212–217. 22 indexed citations
15.
Ohkuchi, Akihide, Chikako Hirashima, Shigeki Matsubara, et al.. (2009). Serum sFlt1:PlGF Ratio, PlGF, and Soluble Endoglin Levels in Gestational Proteinuria. Hypertension in Pregnancy. 28(1). 95–108. 23 indexed citations
16.
Hirashima, Chikako, Akihide Ohkuchi, Shigeki Matsubara, et al.. (2008). Alteration of Serum Soluble Endoglin Levels after the Onset of Preeclampsia Is More Pronounced in Women with Early-Onset. Hypertension Research. 31(8). 1541–1548. 47 indexed citations
17.
Ohkuchi, Akihide, Chikako Hirashima, Shigeki Matsubara, et al.. (2007). Alterations in Placental Growth Factor Levels before and after the Onset of Preeclampsia Are More Pronounced in Women with Early Onset Severe Preeclampsia. Hypertension Research. 30(2). 151–159. 79 indexed citations
18.
Ohkuchi, Akihide, Hirotada Suzuki, Chikako Hirashima, et al.. (2006). Normal and High-Normal Blood Pressures, but Not Body Mass Index, Are Risk Factors for the Subsequent Occurrence of Both Preeclampsia and Gestational Hypertension: A Retrospective Cohort Study. Hypertension Research. 29(3). 161–167. 55 indexed citations
19.
Hirashima, Chikako, et al.. (2006). Hydrocephalus after Intraventricular Hemorrhage in Eclamptic Woman with HELLP Syndrome. Hypertension in Pregnancy. 25(3). 255–257. 6 indexed citations
20.
Hirashima, Chikako, Akihide Ohkuchi, Kayo Takahashi, et al.. (2005). Establishing Reference Values for Both Total Soluble Fms-Like Tyrosine Kinase 1 and Free Placental Growth Factor in Pregnant Women. Hypertension Research. 28(9). 727–732. 50 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Kayo Takahashi Breakdown of academic impact, for papers by Maria Schoedl Breakdown of academic impact, for papers by Deirdre Allegranza Breakdown of academic impact, for papers by K. Leslie Breakdown of academic impact, for papers by Samantha J. Benton Breakdown of academic impact, for papers by Abdulla Al‐Khan Breakdown of academic impact, for papers by Frédéric Debiève Breakdown of academic impact, for papers by Miğraci Tosun Breakdown of academic impact, for papers by János Rigó Breakdown of academic impact, for papers by Paula Corrêa
Rankless by CCL
2026