K. H. Nicolaides

135.1k total citations · 32 hit papers
1.8k papers, 90.2k citations indexed

About

K. H. Nicolaides is a scholar working on Pediatrics, Perinatology and Child Health, Obstetrics and Gynecology and Surgery. According to data from OpenAlex, K. H. Nicolaides has authored 1.8k papers receiving a total of 90.2k indexed citations (citations by other indexed papers that have themselves been cited), including 1.2k papers in Pediatrics, Perinatology and Child Health, 839 papers in Obstetrics and Gynecology and 384 papers in Surgery. Recurrent topics in K. H. Nicolaides's work include Pregnancy and preeclampsia studies (742 papers), Prenatal Screening and Diagnostics (639 papers) and Birth, Development, and Health (346 papers). K. H. Nicolaides is often cited by papers focused on Pregnancy and preeclampsia studies (742 papers), Prenatal Screening and Diagnostics (639 papers) and Birth, Development, and Health (346 papers). K. H. Nicolaides collaborates with scholars based in United Kingdom, United States and Spain. K. H. Nicolaides's co-authors include Argyro Syngelaki, R. J. M. Snijders, Liona C. Poon, Ranjit Akolekar, D. Wright, Kevin Spencer, Neil J. Sebire, S. Campbell, Nerea Maíz and S. Cicero and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and The Lancet.

In The Last Decade

K. H. Nicolaides

1.7k papers receiving 86.6k citations

Hit Papers

Aspirin versus Placeb... 1992 2026 2003 2014 2017 2019 1992 2007 2015 400 800 1.2k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Aspirin versus Placebo in Pregnancies at High Risk for Preterm Preeclampsia
    2017 1.4k citations Daniel L. Rolnik, D. Wright et al. New England Journal of Medicine profile →
  2. The International Federation of Gynecology and Obstetrics (FIGO) initiative on pre‐eclampsia: A pragmatic guide for first‐trimester screening and prevention
    2019 749 citations Liona C. Poon, Andrew Shennan et al. International Journal of Gynecology & Obstetrics profile →
  3. Fetal nuchal translucency: ultrasound screening for chromosomal defects in first trimester of pregnancy.
    1992 730 citations K. H. Nicolaides et al. profile →
  4. Progesterone and the Risk of Preterm Birth among Women with a Short Cervix
    2007 705 citations K. H. Nicolaides et al. New England Journal of Medicine profile →
  5. Analysis of cell‐free DNA in maternal blood in screening for fetal aneuploidies: updated meta‐analysis
    2015 615 citations Ranjit Akolekar, K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  6. The role of aspirin dose on the prevention of preeclampsia and fetal growth restriction: systematic review and meta-analysis
    2016 457 citations K. H. Nicolaides et al. American Journal of Obstetrics and Gynecology profile →
  7. Analysis of cell‐free DNA in maternal blood in screening for aneuploidies: updated meta‐analysis
    2017 451 citations K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  8. Competing risks model in screening for preeclampsia by maternal factors and biomarkers at 11-13 weeks gestation
    2015 442 citations D. Wright, Argyro Syngelaki et al. American Journal of Obstetrics and Gynecology profile →
  9. Screening for fetal aneuploidies at 11 to 13 weeks
    2011 438 citations K. H. Nicolaides profile →
  10. Competing Risks Model in Early Screening for Preeclampsia by Biophysical and Biochemical Markers
    2012 425 citations Ranjit Akolekar, Argyro Syngelaki et al. profile →
  11. Observed to expected lung area to head circumference ratio in the prediction of survival in fetuses with isolated diaphragmatic hernia
    2007 425 citations Jacques Jani, K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  12. Fetal biometry at 14–40 weeks' gestation
    1994 425 citations K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  13. Aspirin for the prevention of preterm and term preeclampsia: systematic review and metaanalysis
    2017 402 citations K. H. Nicolaides et al. American Journal of Obstetrics and Gynecology profile →
  14. Vaginal progesterone in women with an asymptomatic sonographic short cervix in the midtrimester decreases preterm delivery and neonatal morbidity: a systematic review and metaanalysis of individual patient data
    2011 395 citations Roberto Romero, K. H. Nicolaides et al. American Journal of Obstetrics and Gynecology profile →
  15. Pre-eclampsia
    2023 388 citations Daniel L. Rolnik, Fabrício da Silva Costa et al. profile →
  16. ISUOG Practice Guidelines: role of ultrasound in twin pregnancy
    2015 361 citations E. Gratacós, K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  17. Challenges in the diagnosis of fetal non‐chromosomal abnormalities at 11–13 weeks
    2011 342 citations Argyro Syngelaki, K. H. Nicolaides et al. profile →
  18. Maternal age and adverse pregnancy outcome: a cohort study
    2013 309 citations Argyro Syngelaki, K. H. Nicolaides et al. Ultrasound in Obstetrics and Gynecology profile →
  19. Vaginal progesterone for preventing preterm birth and adverse perinatal outcomes in singleton gestations with a short cervix: a meta-analysis of individual patient data
    2017 307 citations Roberto Romero, Agustín Conde‐Agudelo et al. American Journal of Obstetrics and Gynecology profile →
  20. Competing risks model in screening for preeclampsia by maternal characteristics and medical history
    2015 306 citations D. Wright, Argyro Syngelaki et al. American Journal of Obstetrics and Gynecology profile →
  21. ASPRE trial: performance of screening for preterm pre‐eclampsia
    2017 276 citations Daniel L. Rolnik, D. Wright et al. Ultrasound in Obstetrics and Gynecology profile →
  22. Comparison of diagnostic accuracy of early screening for pre‐eclampsia by NICE guidelines and a method combining maternal factors and biomarkers: results of SPREE
    2018 251 citations Argyro Syngelaki, Ranjit Akolekar et al. Ultrasound in Obstetrics and Gynecology profile →
  23. Screening for pre‐eclampsia by maternal factors and biomarkers at 11–13 weeks' gestation
    2018 247 citations Argyro Syngelaki, Liona C. Poon et al. Ultrasound in Obstetrics and Gynecology profile →
  24. Fetal Medicine Foundation fetal and neonatal population weight charts
    2018 246 citations K. H. Nicolaides, D. Wright et al. Ultrasound in Obstetrics and Gynecology profile →
  25. Multicenter screening for pre‐eclampsia by maternal factors and biomarkers at 11–13 weeks' gestation: comparison with NICE guidelines and ACOG recommendations
    2017 228 citations D. Wright, Liona C. Poon et al. Ultrasound in Obstetrics and Gynecology profile →
  26. Prevention of preeclampsia with aspirin
    2020 220 citations Daniel L. Rolnik, K. H. Nicolaides et al. American Journal of Obstetrics and Gynecology profile →
  27. Randomized Trial of Fetal Surgery for Severe Left Diaphragmatic Hernia
    2021 205 citations Jan Deprest, K. H. Nicolaides et al. New England Journal of Medicine profile →
  28. Diagnosis of fetal non‐chromosomal abnormalities on routine ultrasound examination at 11–13 weeks' gestation
    2019 179 citations Argyro Syngelaki, Ranjit Akolekar et al. Ultrasound in Obstetrics and Gynecology profile →
  29. The competing risk approach for prediction of preeclampsia
    2019 172 citations D. Wright, Alan Wright et al. American Journal of Obstetrics and Gynecology profile →
  30. Randomized Trial of Fetal Surgery for Moderate Left Diaphragmatic Hernia
    2021 166 citations Jan Deprest, Alexandra Benachi et al. New England Journal of Medicine profile →
  31. ISUOG Practice Guidelines (updated): performance of 11–14‐week ultrasound scan
    2023 87 citations Liona C. Poon, Argyro Syngelaki et al. Ultrasound in Obstetrics and Gynecology profile →
  32. First trimester risk of preeclampsia and rate of spontaneous birth in patients without preeclampsia
    2024 27 citations Argyro Syngelaki, K. H. Nicolaides et al. American Journal of Obstetrics and Gynecology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. H. Nicolaides United Kingdom 142 62.9k 41.7k 18.7k 14.6k 12.0k 1.8k 90.2k
Ronald J. Wapner United States 82 16.2k 0.3× 12.1k 0.3× 4.1k 0.2× 7.1k 0.5× 1.4k 0.1× 648 26.4k
Aaron B. Caughey United States 84 12.1k 0.2× 13.0k 0.3× 3.6k 0.2× 6.9k 0.5× 1.1k 0.1× 880 28.7k
George R. Saade United States 77 12.2k 0.2× 13.6k 0.3× 3.2k 0.2× 6.1k 0.4× 1.2k 0.1× 829 24.7k
Ben W. Mol Netherlands 88 16.7k 0.3× 19.4k 0.5× 4.6k 0.2× 14.6k 1.0× 411 0.0× 1.4k 40.3k
Neil J. Sebire United Kingdom 74 10.9k 0.2× 5.1k 0.1× 4.2k 0.2× 6.6k 0.5× 1.0k 0.1× 733 24.2k
E. Gratacós Spain 83 16.1k 0.3× 12.5k 0.3× 5.8k 0.3× 2.4k 0.2× 390 0.0× 721 25.6k
Christopher W.G. Redman United Kingdom 84 16.3k 0.3× 19.6k 0.5× 1.0k 0.1× 4.0k 0.3× 1.3k 0.1× 297 30.7k
Sonja A. Rasmussen United States 68 4.7k 0.1× 3.6k 0.1× 2.4k 0.1× 6.4k 0.4× 2.7k 0.2× 302 18.8k
Tze Kin Lau Hong Kong 60 11.8k 0.2× 4.3k 0.1× 2.0k 0.1× 2.1k 0.1× 3.4k 0.3× 393 18.6k
Mary E. D’Alton United States 65 10.8k 0.2× 8.1k 0.2× 2.6k 0.1× 3.6k 0.2× 1.3k 0.1× 454 16.3k

Countries citing papers authored by K. H. Nicolaides

Since Specialization
Citations

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

Fields of papers citing papers by K. H. Nicolaides

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. H. Nicolaides. 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 K. H. Nicolaides. The network helps show where K. H. Nicolaides may publish in the future.

Co-authorship network of co-authors of K. H. Nicolaides

This figure shows the co-authorship network connecting the top 25 collaborators of K. H. Nicolaides. A scholar is included among the top collaborators of K. H. Nicolaides 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 K. H. Nicolaides. K. H. Nicolaides 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.
Gómez‐Fernández, Cristina, et al.. (2025). Kidney Dysfunction Following Gestational Diabetes Mellitus. Clinical Journal of the American Society of Nephrology. 20(10). 1418–1426.
2.
Charakida, Marietta, Christos Chatzakis, Laura A. Magee, et al.. (2025). Association of maternal body mass index with hemodynamic and vascular alterations at 35–37 weeks' gestation. Ultrasound in Obstetrics and Gynecology. 65(3). 303–310.
3.
4.
Conde‐Agudelo, Agustín, Roberto Romero, Anoop Rehal, et al.. (2023). Vaginal progesterone for preventing preterm birth and adverse perinatal outcomes in twin gestations: a systematic review and meta-analysis. American Journal of Obstetrics and Gynecology. 229(6). 599–616.e3. 21 indexed citations
5.
Deprest, Jan, Alexandra Benachi, E. Gratacós, et al.. (2021). Randomized Trial of Fetal Surgery for Moderate Left Diaphragmatic Hernia. New England Journal of Medicine. 385(2). 119–129. 166 indexed citations breakdown →
6.
Sarno, Manoel, et al.. (2020). Ophthalmic artery Doppler in combination with other biomarkers in prediction of pre‐eclampsia at 35–37 weeks' gestation. Ultrasound in Obstetrics and Gynecology. 57(4). 600–606. 32 indexed citations
7.
Nicolaides, K. H., et al.. (2020). Influence of birth weight on fetal cardiac indices at 35–37 weeks' gestation. Ultrasound in Obstetrics and Gynecology. 57(2). 266–272. 8 indexed citations
8.
Poon, Liona C., Andrew Shennan, Jonathan Hyett, et al.. (2019). The International Federation of Gynecology and Obstetrics (FIGO) initiative on pre‐eclampsia: A pragmatic guide for first‐trimester screening and prevention. International Journal of Gynecology & Obstetrics. 145(S1). 1–33. 749 indexed citations breakdown →
9.
Poon, Liona C., D. Wright, Daniel L. Rolnik, et al.. (2017). Aspirin for Evidence-Based Preeclampsia Prevention trial: effect of aspirin in prevention of preterm preeclampsia in subgroups of women according to their characteristics and medical and obstetrical history. American Journal of Obstetrics and Gynecology. 217(5). 585.e1–585.e5. 144 indexed citations
10.
Dixon, Peter, Melissa Sambrotta, Jennifer Chambers, et al.. (2017). An expanded role for heterozygous mutations of ABCB4, ABCB11, ATP8B1, ABCC2 and TJP2 in intrahepatic cholestasis of pregnancy. Scientific Reports. 7(1). 11823–11823. 95 indexed citations
11.
Bakalis, Spyros, et al.. (2012). C-reactive protein at 11–13 weeks’ gestation in spontaneous early preterm delivery. The Journal of Maternal-Fetal & Neonatal Medicine. 25(12). 2475–2478. 11 indexed citations
12.
Jani, Jacques, K. H. Nicolaides, E. Gratacós, H. Vandecruys, & Jan Deprest. (2006). Fetal lung-to-head ratio in the prediction of survival in severe left-sided diaphragmatic hernia treated by fetal endoscopic tracheal occlusion (FETO). American Journal of Obstetrics and Gynecology. 195(6). 1646–1650. 113 indexed citations
13.
Ekele, Bissallah, Phillip R. Bennett, Andrew Shennan, et al.. (2004). Cervical cerclage for prevention of preterm delivery in women with short cervix. Authors' reply. The Lancet. 364(9449). 1934–1935. 1 indexed citations
14.
Evans, Mark I., Richard L. Berkowitz, Ronald J. Wapner, et al.. (2001). Improvement in outcomes of multifetal pregnancy reduction with increased experience. American Journal of Obstetrics and Gynecology. 184(2). 97–103. 131 indexed citations
15.
Carroll, S., et al.. (1996). Lower genital tract swabs in the prediction of intrauterine infection in preterm prelabour rupture of the membranes. BJOG An International Journal of Obstetrics & Gynaecology. 103(1). 54–59. 64 indexed citations
16.
Gosden, Christine, et al.. (1994). Is my baby alright? : a guide for expectant parents. Oxford University Press eBooks. 1 indexed citations
17.
Thompson, Peter J., Anne Greenough, E. Graham Davies, & K. H. Nicolaides. (1993). Fetal C-reactive protein. Early Human Development. 32(2-3). 81–85. 9 indexed citations
18.
Thompson, Peter J., et al.. (1992). Elevation of prostaglandin levels in pregnancies complicated by premature rupture of the membranes. Journal of Perinatal Medicine. 20(1). 5–9. 3 indexed citations
19.
Thompson, Peter J., Anne Greenough, & K. H. Nicolaides. (1990). Chronic respiratory morbidity after prolonged and premature rupture of the membranes.. Archives of Disease in Childhood. 65(8). 878–880. 8 indexed citations
20.
Blott, Margaret, K. H. Nicolaides, D. M. F. GIBB, et al.. (1987). FETAL BREATHING MOVEMENTS AS PREDICTOR OF FAVOURABLE PREGNANCY OUTCOME AFTER OLIGOHYDRAMNIOS DUE TO MEMBRANE RUPTURE IN SECOND TRIMESTER. The Lancet. 330(8551). 129–131. 63 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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