Umer Darr

1.2k total citations
25 papers, 629 citations indexed

About

Umer Darr is a scholar working on Cardiology and Cardiovascular Medicine, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Umer Darr has authored 25 papers receiving a total of 629 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Cardiology and Cardiovascular Medicine, 13 papers in Pulmonary and Respiratory Medicine and 9 papers in Surgery. Recurrent topics in Umer Darr's work include Aortic Disease and Treatment Approaches (8 papers), Aortic aneurysm repair treatments (8 papers) and Cardiac Valve Diseases and Treatments (4 papers). Umer Darr is often cited by papers focused on Aortic Disease and Treatment Approaches (8 papers), Aortic aneurysm repair treatments (8 papers) and Cardiac Valve Diseases and Treatments (4 papers). Umer Darr collaborates with scholars based in United States, Pakistan and United Arab Emirates. Umer Darr's co-authors include John A. Elefteriades, John A. Rizzo, Gary S. Kopf, Divakar Mandapati, Michael A. Coady, Graeme L. Hammond, Mohammad A. Zafar, Ahmed M. Mansour, Sven Peterß and Bulat A. Ziganshin and has published in prestigious journals such as Annals of the New York Academy of Sciences, Journal of Thoracic and Cardiovascular Surgery and The Annals of Thoracic Surgery.

In The Last Decade

Umer Darr

22 papers receiving 607 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Umer Darr United States 9 512 308 211 85 38 25 629
Mariano Cefarelli Italy 13 530 1.0× 414 1.3× 225 1.1× 61 0.7× 6 0.2× 60 622
Majesh Makan United States 10 255 0.5× 489 1.6× 114 0.5× 139 1.6× 23 0.6× 21 578
Belov IuV Russia 8 230 0.4× 197 0.6× 154 0.7× 62 0.7× 6 0.2× 219 345
I Hammerer Austria 10 136 0.3× 154 0.5× 77 0.4× 66 0.8× 45 1.2× 24 314
William Moser United States 15 972 1.9× 548 1.8× 440 2.1× 95 1.1× 6 0.2× 22 1.0k
Motoyoshi Kawataki Japan 14 231 0.5× 88 0.3× 252 1.2× 159 1.9× 42 1.1× 40 505
Simone Turci Italy 8 246 0.5× 105 0.3× 107 0.5× 79 0.9× 37 1.0× 12 305
Shawn Tittle United States 5 807 1.6× 431 1.4× 392 1.9× 76 0.9× 62 1.6× 7 871
Pouya Youssefi United Kingdom 10 284 0.6× 321 1.0× 123 0.6× 112 1.3× 7 0.2× 25 413
Delores Danilowicz United States 13 244 0.5× 173 0.6× 202 1.0× 298 3.5× 6 0.2× 42 492

Countries citing papers authored by Umer Darr

Since Specialization
Citations

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

Fields of papers citing papers by Umer Darr

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Umer Darr

This figure shows the co-authorship network connecting the top 25 collaborators of Umer Darr. A scholar is included among the top collaborators of Umer Darr 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 Umer Darr. Umer Darr 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.
Butt, Salman Pervaiz, Arun Kumar, Nuno Raposo, et al.. (2024). Heparin resistance management during cardiac surgery: a literature review and future directions. Journal of ExtraCorporeal Technology. 56(3). 136–144. 4 indexed citations
3.
Darr, Umer, et al.. (2022). Polyvascular Disease in the Gulf Region: Concealed Marker of Poor Outcomes in Acute Coronary Syndrome. Current Problems in Cardiology. 47(12). 101357–101357. 1 indexed citations
4.
Dewar, Michael L., et al.. (2021). Acute changes of left ventricular function during surgical revascularization by 3D speckle tracking. Echocardiography. 38(4). 623–631. 5 indexed citations
5.
Mori, Makoto, Kayoko Shioda, Abeel A. Mangi, et al.. (2018). Perioperative Risk Profiles and Volume-Outcome Relationships in Proximal Thoracic Aortic Surgery. The Annals of Thoracic Surgery. 106(4). 1095–1104. 28 indexed citations
6.
Mansour, Ahmed M., Sven Peterß, Mohammad A. Zafar, et al.. (2018). Prevention of Aortic Dissection Suggests a Diameter Shift to a Lower Aortic Size Threshold for Intervention. Cardiology. 139(3). 139–146. 50 indexed citations
7.
8.
Mori, Makoto, Kayoko Shioda, James Yun, et al.. (2017). Pattern and predictors of dual antiplatelet use after coronary artery bypass graft surgery. Journal of Thoracic and Cardiovascular Surgery. 155(2). 632–638. 9 indexed citations
9.
Peterß, Sven, Ahmed M. Mansour, Mohammad A. Zafar, et al.. (2017). Elective surgery for ascending aortic aneurysm in the elderly: should there be an age cut-off?†. European Journal of Cardio-Thoracic Surgery. 51(5). 965–970. 12 indexed citations
10.
Darr, Umer, et al.. (2016). Can Transcutaneous CO2Tension Be Used to Calculate Ventilatory Dead Space? A Pilot Study. Critical Care Research and Practice. 2016. 1–4. 1 indexed citations
11.
Oldham, Mark, Keith A. Hawkins, David D. Yuh, et al.. (2015). Cognitive and functional status predictors of delirium and delirium severity after coronary artery bypass graft surgery: an interim analysis of the Neuropsychiatric Outcomes After Heart Surgery study. International Psychogeriatrics. 27(12). 1929–1938. 28 indexed citations
12.
Darr, Umer, et al.. (2012). Do outcomes justify emergence of new cardiac centres.. PubMed. 62(8). 763–6. 1 indexed citations
13.
Darr, Umer, et al.. (2012). Dextrocardia with situs inversus totalis: coronary artery bypass grafting.. PubMed. 62(1). 69–70.
14.
Darr, Umer, et al.. (2011). Efficacy of valve replacement surgery in patients with severe pulmonary hypertension.. PubMed. 61(9). 893–6. 1 indexed citations
15.
Elefteriades, John A., et al.. (2005). Symptoms Plus Family History Trump Size in Thoracic Aortic Aneurysm. The Annals of Thoracic Surgery. 80(3). 1098–1100. 21 indexed citations
16.
Rizzo, John A., Umer Darr, Michael J. M. Fischer, et al.. (2005). Multimodality serial follow-up of thoracic aortic aneurysms. International Journal of Angiology. 6(3). 153–156. 3 indexed citations
17.
Coady, Michael A., John A. Rizzo, Graeme L. Hammond, et al.. (1997). What is the appropriate size criterion for resection of thoracic aortic aneurysms?. Journal of Thoracic and Cardiovascular Surgery. 113(3). 476–491. 408 indexed citations
18.
Rizzo, John A., Umer Darr, Kevin Johnson, et al.. (1997). Multimodality serial follow-up of thoracic aortic aneurysms. International Journal of Angiology. 6(3). 153–156. 3 indexed citations
19.
Modlin, Irvin M., et al.. (1994). The Mastomys Gastric Carcinoid: Aspects of Enterochromaff in-Like Cell Function. Digestion. 55(3). 31–37. 23 indexed citations
20.
Modlin, Irvin M., et al.. (1994). Enterochromaffin‐like Cell Pathobiology of Mastomys. Annals of the New York Academy of Sciences. 733(1). 365–379. 11 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 Mariano Cefarelli Breakdown of academic impact, for papers by Majesh Makan Breakdown of academic impact, for papers by Belov IuV Breakdown of academic impact, for papers by I Hammerer Breakdown of academic impact, for papers by William Moser Breakdown of academic impact, for papers by Motoyoshi Kawataki Breakdown of academic impact, for papers by Simone Turci Breakdown of academic impact, for papers by Shawn Tittle Breakdown of academic impact, for papers by Pouya Youssefi Breakdown of academic impact, for papers by Delores Danilowicz
Rankless by CCL
2026