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, Yair J. Blumenfeld, Stephen R. Quake, Lauren Lynch, Isabelle Wilkins, Karen E. Mehalek, Frank A. Chervenak and Janice G. McFarland 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

align trajectories

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.

Noninvasive diagnosis of fetal aneuploidy by shotgun sequencing DNA from maternal blood

2008 764 citations Usha Chitkara, Louanne Hudgins et al. profile →

Peers

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

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20 of 20 papers shown

#	Work	Indexed citations
1	Prenatal Diagnosis of Placenta Accreta 2008 ·Journal of Ultrasound in Medicine ·Bonnie K. Dwyer, Victoria Belogolovkin, Lan Tran, (unknown), Ian Carroll, Richard A. Barth, Usha Chitkara	166
2	Maintenance Nifedipine Tocolysis Compared With Placebo 2008 ·Obstetrics and Gynecology ·Deirdre J. Lyell, Kristin Pullen, (unknown), Usha Chitkara, Maurice L. Druzin, Aaron B. Caughey, Yasser Y. El‐Sayed	40
3	Magnesium Sulfate Compared With Nifedipine for Acute Tocolysis of Preterm Labor 2007 ·Obstetrics and Gynecology ·Deirdre J. Lyell, Kristin Pullen, Laura Campbell, (unknown), Maurice L. Druzin, Usha Chitkara, (unknown), Aaron B. Caughey, Yasser Y. El‐Sayed	53
4	Detection of Sonographic Markers of Fetal Aneuploidy Depends on Maternal and Fetal Characteristics 2005 ·Journal of Ultrasound in Medicine ·M. Mark Taslimi, (unknown), Jane Chueh, Louanne Hudgins, (unknown), Maurice L. Druzin, Usha Chitkara	8
5	Randomized comparison of intravenous nitroglycerin and subcutaneous terbutaline for external cephalic version under tocolysis 2004 ·American Journal of Obstetrics and Gynecology ·Yasser Y. El‐Sayed, Kristin Pullen, Edward T. Riley, Deirdre J. Lyell, Maurice L. Druzin, Sheila E. Cohen, Usha Chitkara	14
6	Pregnancy Complicated By Severe Osteogenesis Imperfecta: A Report Of Two Cases 2002 ·Anesthesia & Analgesia ·(unknown), Emily F. Ratner, Robert Thomas, Usha Chitkara	23
7	Fetal ear length measurement: a useful predictor of aneuploidy? 2002 ·Ultrasound in Obstetrics and Gynecology ·Usha Chitkara, (unknown), John Oehlert, D. Blöch, Reece Holbrook, Yasser Y. El‐Sayed, Maurice L. Druzin	35
8	Ultrasonographic ear length measurement in normal second- and third-trimester fetuses 2000 ·American Journal of Obstetrics and Gynecology ·Usha Chitkara, Lisa Lee, Yasser Y. El‐Sayed, Reece Holbrook, D. Blöch, John Oehlert, Maurice L. Druzin	15
9	Pelvic arterial embolization for control of obstetric hemorrhage: A five-year experience 1999 ·American Journal of Obstetrics and Gynecology ·(unknown), Usha Chitkara, Jessica N. McAlpine, Yasser El‐Sayed, Michael D. Dake, Mahmood K. Razavi	187
10	Diltiazem for maintenance tocolysis of preterm labor: Comparison to rifedipine in a randomized trial 1998 ·The Journal of Maternal-Fetal Medicine ·Yasser Y. El‐Sayed, (unknown), Ronald L. Gibson, Usha Chitkara, Maurice L. Druzin, (unknown)	19
11	The Severely Anemic and Hydropic Isoimmune Fetus 1992 ·Obstetrics and Gynecology ·Nebojša Radunović, Charles J. Lockwood, Manuel Álvarez, (unknown), Usha Chitkara, Richard L. Berkowitz	63
12	Fanconi's anaemia and pregnancy 1991 ·British Journal of Haematology ·Blanche P. Alter, Christine L. Frissora, (unknown), Melvin H. Freedman, Usha Chitkara, (unknown), Lauren Lynch, Barbara Adler‐Brecher, Arleen D. Auerbach	54
13	Fetal cytomegalovirus infection: A case report 1990 ·American Journal of Obstetrics and Gynecology ·(unknown), Manuel Álvarez, Lauren Lynch, Usha Chitkara, David J. Emanuel, Richard L. Berkowitz	16
14	Intravascular monitoring and management of erythroblastosis fetalis 1988 ·American Journal of Obstetrics and Gynecology ·Richard L. Berkowitz, Usha Chitkara, Isabelle Wilkins, Lauren Lynch, Harvey Plosker, Howard Bernstein	40
15	Selective Reduction of Multifetal Pregnancies in the First Trimester 1988 ·New England Journal of Medicine ·Richard L. Berkowitz, Lauren Lynch, Usha Chitkara, Isabelle Wilkins, Karen E. Mehalek, (unknown)	165
16	Choroid plexus cysts in the fetus: a benign anatomic variant or pathologic entity? Report of 41 cases and review of the literature. 1988 ·PubMed ·Usha Chitkara, (unknown), Karen I. Norton, Isabelle Wilkins, Karen E. Mehalek, Richard L. Berkowitz	55
17	The in utero diagnosis and management of alloimmune thrombocytopenia 1988 ·Prenatal Diagnosis ·Lauren Lynch, James B. Bussel, Judith D. Goldberg, Usha Chitkara, Isabelle Wilkins, (unknown), Richard L. Berkowitz	12
18	Sonographic estimation of fetal weight and Doppler analysis of umbilical artery velocimetry in the prediction of intrauterine growth retardation: A prospective study 1988 ·American Journal of Obstetrics and Gynecology ·Gertrud S. Berkowitz, Usha Chitkara, (unknown), (unknown), (unknown), (unknown), Karen E. Mehalek, Richard L. Berkowitz	50
19	Prenatal Diagnosis of Fetal Brain Tumors 1987 ·Fetal Diagnosis and Therapy ·Manuel Álvarez, Usha Chitkara, Lauren Lynch, Karen E. Mehalek, Debra S. Heller, Richard L. Berkowitz	23
20	Antenatal sonographic appearance of omphalomesenteric duct cyst. 1986 ·Journal of Ultrasound in Medicine ·(unknown), Frank A. Chervenak, Blair Walker, Usha Chitkara, Richard L. Berkowitz	15

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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