S. Ram Kumar

3.8k total citations
88 papers, 2.1k citations indexed

About

S. Ram Kumar is a scholar working on Epidemiology, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, S. Ram Kumar has authored 88 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Epidemiology, 40 papers in Pulmonary and Respiratory Medicine and 32 papers in Surgery. Recurrent topics in S. Ram Kumar's work include Congenital Heart Disease Studies (46 papers), Aortic Disease and Treatment Approaches (20 papers) and Congenital heart defects research (12 papers). S. Ram Kumar is often cited by papers focused on Congenital Heart Disease Studies (46 papers), Aortic Disease and Treatment Approaches (20 papers) and Congenital heart defects research (12 papers). S. Ram Kumar collaborates with scholars based in United States, Canada and India. S. Ram Kumar's co-authors include Fred A. Weaver, Parkash S. Gill, Jeffrey P. Jacobs, John E. Mayer, Kevin D. Hill, David M. Overman, Vaughn A. Starnes, Marshall L. Jacobs, Sara K. Pasquali and Vincent L. Rowe and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Circulation and Blood.

In The Last Decade

S. Ram Kumar

86 papers receiving 2.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
S. Ram Kumar United States 26 732 681 654 650 544 88 2.1k
Masashi Sakuma Japan 22 342 0.5× 442 0.6× 761 1.2× 860 1.3× 918 1.7× 128 2.9k
Fulvio Morello Italy 29 357 0.5× 540 0.8× 1.4k 2.2× 1.2k 1.9× 927 1.7× 89 3.6k
Ning Lin United States 31 542 0.7× 847 1.2× 386 0.6× 460 0.7× 80 0.1× 124 3.0k
Eva M. Rzucidlo United States 30 266 0.4× 1.1k 1.6× 912 1.4× 616 0.9× 572 1.1× 54 2.6k
Kikuo Isoda Japan 31 524 0.7× 375 0.6× 751 1.1× 768 1.2× 933 1.7× 123 2.9k
Nerea Varo Spain 37 787 1.1× 396 0.6× 675 1.0× 896 1.4× 1.9k 3.4× 85 4.3k
Matthew Kutcher United States 26 265 0.4× 211 0.3× 569 0.9× 369 0.6× 146 0.3× 72 2.4k
Atsushi Izawa Japan 24 222 0.3× 309 0.5× 761 1.2× 1.1k 1.7× 912 1.7× 104 2.8k
Hiroshi Shigematsu Japan 25 215 0.3× 1.1k 1.6× 1.2k 1.8× 966 1.5× 415 0.8× 139 2.8k
Yasunori Ueda Japan 34 193 0.3× 957 1.4× 2.1k 3.2× 374 0.6× 1.5k 2.8× 179 3.7k

Countries citing papers authored by S. Ram Kumar

Since Specialization
Citations

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

Fields of papers citing papers by S. Ram Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. Ram Kumar. 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 S. Ram Kumar. The network helps show where S. Ram Kumar may publish in the future.

Co-authorship network of co-authors of S. Ram Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of S. Ram Kumar. A scholar is included among the top collaborators of S. Ram Kumar 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 S. Ram Kumar. S. Ram Kumar 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.
Kumar, S. Ram, Andrew B. Goldstone, Jeffrey P. Jacobs, et al.. (2025). The Society of Thoracic Surgeons Congenital Heart Surgery Database: 2024 Update on Outcomes and Research. The Annals of Thoracic Surgery. 121(4). 790–802.
2.
Kumar, S. Ram, J. William Gaynor, John E. Mayer, et al.. (2024). The Society of Thoracic Surgeons Congenital Heart Surgery Database: 2023 Update on Outcomes and Research. The Annals of Thoracic Surgery. 117(5). 904–914. 13 indexed citations
3.
Hjelm, Brooke E., et al.. (2023). Mutations in genes related to myocyte contraction and ventricular septum development in non-syndromic tetralogy of Fallot. Frontiers in Cardiovascular Medicine. 10. 1249605–1249605. 3 indexed citations
4.
Kumar, S. Ram, J. William Gaynor, Leigh Ann Jones, et al.. (2023). The Society of Thoracic Surgeons Congenital Heart Surgery Database: 2022 Update on Outcomes and Research. The Annals of Thoracic Surgery. 115(4). 807–819. 20 indexed citations
5.
Jacobs, Jeffrey P., S. Ram Kumar, James D. St. Louis, et al.. (2022). Variation in Case-Mix Across Hospitals: Analysis of The Society of Thoracic Surgeons Congenital Heart Surgery Database. The Annals of Thoracic Surgery. 115(2). 485–492. 4 indexed citations
6.
Munabi, Naikhoba C.O., Omar Toubat, Allyn Auslander, et al.. (2022). High prevalence of deleterious mutations in concomitant nonsyndromic cleft and outflow tract heart defects. American Journal of Medical Genetics Part A. 188(7). 2082–2095. 5 indexed citations
7.
Toubat, Omar, Winfield J. Wells, Vaughn A. Starnes, & S. Ram Kumar. (2022). Fate of the Right Ventricular Outflow Tract Following Valve-Sparing Repair of Tetralogy of Fallot. Seminars in Thoracic and Cardiovascular Surgery. 36(2). 242–249. 3 indexed citations
8.
Toubat, Omar, et al.. (2021). Concomitant genetic defects potentiate the adverse impact of prenatal alcohol exposure on cardiac outflow tract maturation. Birth Defects Research. 114(3-4). 105–115. 5 indexed citations
9.
Jacobs, Marshall L., Jeffrey P. Jacobs, Dylan Thibault, et al.. (2021). Updating an Empirically Based Tool for Analyzing Congenital Heart Surgery Mortality. World Journal for Pediatric and Congenital Heart Surgery. 12(2). 246–281. 67 indexed citations
10.
Mishra, Amrendra, Hamed Mirzaei, Novella Guidi, et al.. (2021). Fasting-mimicking diet prevents high-fat diet effect on cardiometabolic risk and lifespan. Nature Metabolism. 3(10). 1342–1356. 58 indexed citations
11.
Toubat, Omar, et al.. (2021). Murine Model of Cardiac Defects Observed in Adams-Oliver Syndrome Driven by Delta-Like Ligand-4 Haploinsufficiency. Stem Cells and Development. 30(12). 611–621. 6 indexed citations
12.
Azadgoli, Beina, Naikhoba C.O. Munabi, Artur Fahradyan, et al.. (2020). Congenital Heart Disease in Patients With Cleft Lip/Palate and Its Impact on Cleft Management. The Cleft Palate-Craniofacial Journal. 57(8). 957–966. 10 indexed citations
13.
Cohen, Robbin G., S. Ram Kumar, Jules Lin, et al.. (2019). The Disparity Between Public Utilization and Surgeon Awareness of the STS Patient Education Website. The Annals of Thoracic Surgery. 110(1). 284–289. 4 indexed citations
14.
15.
Holst, Kimberly, Joseph A. Dearani, Sameh M. Said, et al.. (2018). Surgical Management and Outcomes of Ebstein Anomaly in Neonates and Infants: A Society of Thoracic Surgeons Congenital Heart Surgery Database Analysis. The Annals of Thoracic Surgery. 106(3). 785–791. 25 indexed citations
16.
Kumar, S. Ram, Nigel Scott, Winfield J. Wells, & Vaughn A. Starnes. (2018). Liberal Use of Delayed Sternal Closure in Children Is Not Associated With Increased Morbidity. The Annals of Thoracic Surgery. 106(2). 581–586. 13 indexed citations
17.
Castellanos, Daniel A., et al.. (2016). Home Monitoring Program Reduces Mortality in High-Risk Sociodemographic Single-Ventricle Patients. Pediatric Cardiology. 37(8). 1575–1580. 29 indexed citations
18.
Ham, Sung W., S. Ram Kumar, Vincent L. Rowe, & Fred A. Weaver. (2011). Disease progression after initial surgical intervention for Takayasu arteritis. Journal of Vascular Surgery. 54(5). 1345–1351. 24 indexed citations
19.
Kumar, S. Ram, et al.. (2010). Vaginal misoprostol in early pregnancy failure.. Journal of the Medical Sciences (Berkala Ilmu Kedokteran). 3(3). 195–200. 3 indexed citations
20.
Weaver, Fred A., S. Ram Kumar, Albert E. Yellin, et al.. (2004). Renal revascularization in Takayasu arteritis–induced renal artery stenosis. Journal of Vascular Surgery. 39(4). 749–757. 60 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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