Usha Chitkara

5.5k total citations · 1 hit paper
71 papers, 3.8k citations indexed

About

Usha Chitkara is a scholar working on Pediatrics, Perinatology and Child Health, Epidemiology and Obstetrics and Gynecology. According to data from OpenAlex, Usha Chitkara has authored 71 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 41 papers in Pediatrics, Perinatology and Child Health, 16 papers in Epidemiology and 16 papers in Obstetrics and Gynecology. Recurrent topics in Usha Chitkara's work include Prenatal Screening and Diagnostics (17 papers), Pregnancy and preeclampsia studies (12 papers) and Preterm Birth and Chorioamnionitis (11 papers). Usha Chitkara is often cited by papers focused on Prenatal Screening and Diagnostics (17 papers), Pregnancy and preeclampsia studies (12 papers) and Preterm Birth and Chorioamnionitis (11 papers). Usha Chitkara collaborates with scholars based in United States, Canada and India. Usha Chitkara's co-authors include Richard L. Berkowitz, Louanne Hudgins, H. Christina Fan, Stephen R. Quake, Yair J. Blumenfeld, Lauren Lynch, Isabelle Wilkins, Karen E. Mehalek, Frank A. Chervenak and J B Bussel 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

Usha Chitkara

71 papers receiving 3.6k citations

Hit Papers

Noninvasive diagnosis of ... 2008 2026 2014 2020 2008 250 500 750
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. Noninvasive diagnosis of fetal aneuploidy by shotgun sequencing DNA from maternal blood
    2008 764 citations Usha Chitkara, Louanne Hudgins et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Usha Chitkara 2.2k 832 637 591 584 71 3.8k
P. Chamberlain 3.7k 1.6× 1.2k 1.4× 318 0.5× 430 0.7× 625 1.1× 65 5.3k
Humphrey H.H. Kanhai 1.6k 0.7× 664 0.8× 542 0.9× 1.9k 3.2× 485 0.8× 141 5.3k
Moshe Fejgin 1.0k 0.5× 596 0.7× 546 0.9× 231 0.4× 438 0.8× 180 2.8k
Zoltán Papp 1.5k 0.7× 1.5k 1.8× 510 0.8× 157 0.3× 256 0.4× 205 3.5k
Aris Antsaklis 2.1k 1.0× 1.7k 2.1× 1.1k 1.7× 122 0.2× 209 0.4× 208 4.2k
Antonio Farina 3.3k 1.5× 2.8k 3.4× 743 1.2× 113 0.2× 369 0.6× 254 6.1k
Stuart Campbell 2.8k 1.3× 2.4k 2.9× 1.6k 2.5× 122 0.2× 629 1.1× 152 6.3k
Luciano Bovicelli 2.0k 0.9× 1.1k 1.3× 585 0.9× 94 0.2× 384 0.7× 119 3.9k
Chanane Wanapirak 1.3k 0.6× 440 0.5× 216 0.3× 395 0.7× 180 0.3× 122 2.0k
Edwina J. Popek 924 0.4× 806 1.0× 346 0.5× 105 0.2× 159 0.3× 76 2.4k

Countries citing papers authored by Usha Chitkara

Since Specialization
Citations

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

Fields of papers citing papers by Usha Chitkara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Usha Chitkara

This figure shows the co-authorship network connecting the top 25 collaborators of Usha Chitkara. A scholar is included among the top collaborators of Usha Chitkara 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 Usha Chitkara. Usha Chitkara 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.
Lyell, Deirdre J., Kristin Pullen, Laura Campbell, et al.. (2007). Magnesium Sulfate Compared With Nifedipine for Acute Tocolysis of Preterm Labor. Obstetrics and Gynecology. 110(1). 61–67. 53 indexed citations
2.
Taslimi, M. Mark, et al.. (2005). Detection of Sonographic Markers of Fetal Aneuploidy Depends on Maternal and Fetal Characteristics. Journal of Ultrasound in Medicine. 24(6). 811–815. 8 indexed citations
3.
El‐Sayed, Yasser Y., Kristin Pullen, Edward T. Riley, et al.. (2004). Randomized comparison of intravenous nitroglycerin and subcutaneous terbutaline for external cephalic version under tocolysis. American Journal of Obstetrics and Gynecology. 191(6). 2051–2055. 14 indexed citations
4.
El‐Sayed, Yasser Y., et al.. (2002). Central nervous system lupus and pregnancy: 11-year experience at a single center. The Journal of Maternal-Fetal & Neonatal Medicine. 12(2). 99–103. 6 indexed citations
5.
Ratner, Emily F., et al.. (2002). Pregnancy Complicated By Severe Osteogenesis Imperfecta: A Report Of Two Cases. Anesthesia & Analgesia. 94(5). 1315–1317. 23 indexed citations
6.
Chitkara, Usha, Lisa Lee, Yasser Y. El‐Sayed, et al.. (2000). Ultrasonographic ear length measurement in normal second- and third-trimester fetuses. American Journal of Obstetrics and Gynecology. 183(1). 230–234. 15 indexed citations
7.
Chitkara, Usha, et al.. (1999). Pelvic arterial embolization for control of obstetric hemorrhage: A five-year experience. American Journal of Obstetrics and Gynecology. 180(6). 1454–1460. 187 indexed citations
8.
El‐Sayed, Yasser Y., et al.. (1998). Diltiazem for maintenance tocolysis of preterm labor: Comparison to rifedipine in a randomized trial. The Journal of Maternal-Fetal Medicine. 7(5). 217–221. 19 indexed citations
9.
Fisch, Jeffrey D, et al.. (1998). Medical management of interstitial ectopic pregnancy: a case report and literature review. Human Reproduction. 13(7). 1981–1986. 32 indexed citations
10.
Skarsgard, Erik D., Usha Chitkara, Elliot J. Krane, et al.. (1996). The OOPS procedure (Operation on Placental Support): In utero airway management of the fetus with prenatally diagnosed tracheal obstruction. Journal of Pediatric Surgery. 31(6). 826–828. 84 indexed citations
11.
Radunović, Nebojša, et al.. (1992). The Severely Anemic and Hydropic Isoimmune Fetus. Obstetrics and Gynecology. 79(3). 390–393. 63 indexed citations
12.
Alter, Blanche P., Christine L. Frissora, Melvin H. Freedman, et al.. (1991). Fanconi's anaemia and pregnancy. British Journal of Haematology. 77(3). 410–418. 54 indexed citations
13.
Levine, Amy B., Keith Eddleman, Usha Chitkara, et al.. (1991). Congenital myotonic dystrophy: An often unsuspected cause of severe polyhydramnios. Prenatal Diagnosis. 11(2). 111–115. 4 indexed citations
14.
Friedman, Frederick, et al.. (1991). Sonographic findings in a twin with congenital fetal volvulus. Journal of Clinical Ultrasound. 19(2). 98–100. 8 indexed citations
15.
Álvarez, Manuel, et al.. (1990). Fetal cytomegalovirus infection: A case report. American Journal of Obstetrics and Gynecology. 162(3). 663–664. 16 indexed citations
16.
Mehalek, Karen E., et al.. (1989). Umbilical and uterine artery flow velocity waveforms. Effect of the sampling site on Doppler ratios.. Journal of Ultrasound in Medicine. 8(4). 171–176. 31 indexed citations
17.
Berkowitz, Richard L., et al.. (1988). Selective Reduction of Multifetal Pregnancies in the First Trimester. New England Journal of Medicine. 318(16). 1043–1047. 165 indexed citations
18.
Berkowitz, Richard L., Usha Chitkara, Isabelle Wilkins, et al.. (1988). Intravascular monitoring and management of erythroblastosis fetalis. American Journal of Obstetrics and Gynecology. 158(4). 783–791. 40 indexed citations
19.
Bussel, J B, Richard L. Berkowitz, Janice G. McFarland, Lauren Lynch, & Usha Chitkara. (1988). Antenatal Treatment of Neonatal Alloimmune Thrombocytopenia. New England Journal of Medicine. 319(21). 1374–1378. 231 indexed citations
20.
Álvarez, Manuel, Usha Chitkara, Lauren Lynch, et al.. (1987). Prenatal Diagnosis of Fetal Brain Tumors. Fetal Diagnosis and Therapy. 2(4). 203–208. 23 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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