Ursula Klaar

2.8k total citations
25 papers, 1.9k citations indexed

About

Ursula Klaar is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Ursula Klaar has authored 25 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Cardiology and Cardiovascular Medicine, 6 papers in Surgery and 6 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Ursula Klaar's work include Cardiac Valve Diseases and Treatments (12 papers), Cardiovascular Function and Risk Factors (7 papers) and Cardiac Imaging and Diagnostics (4 papers). Ursula Klaar is often cited by papers focused on Cardiac Valve Diseases and Treatments (12 papers), Cardiovascular Function and Risk Factors (7 papers) and Cardiac Imaging and Diagnostics (4 papers). Ursula Klaar collaborates with scholars based in Austria, Germany and Estonia. Ursula Klaar's co-authors include Gerald Maurer, Raphaël Rosenhek, Helmut Baumgartner, Harald Gabriel, Maria Heger, Thomas Binder, Florian Rader, M. Schemper, Thomas Neunteufl and Severin P. Schwarzacher and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and Kidney International.

In The Last Decade

Ursula Klaar

24 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ursula Klaar Austria 13 1.6k 594 524 472 338 25 1.9k
Eshan Patvardhan United States 15 1.1k 0.7× 574 1.0× 277 0.5× 317 0.7× 202 0.6× 20 1.4k
Vasileios Kamperidis Greece 27 1.9k 1.1× 747 1.3× 467 0.9× 517 1.1× 515 1.5× 149 2.1k
B. W. Lytle United States 21 998 0.6× 294 0.5× 848 1.6× 392 0.8× 224 0.7× 36 1.4k
Bertrand Marcheix France 26 1.3k 0.8× 864 1.5× 739 1.4× 954 2.0× 241 0.7× 117 2.2k
Giovanni Melina Italy 22 1.3k 0.8× 562 0.9× 629 1.2× 739 1.6× 136 0.4× 75 1.7k
Morgan L. Brown United States 25 1.6k 1.0× 1.1k 1.8× 964 1.8× 831 1.8× 193 0.6× 75 2.2k
Antonio Russo Italy 17 1.2k 0.7× 606 1.0× 675 1.3× 405 0.9× 131 0.4× 47 1.7k
Chandra K. Nair United States 21 1.4k 0.9× 234 0.4× 763 1.5× 855 1.8× 280 0.8× 66 1.9k
Orlando Santana United States 22 1.3k 0.8× 461 0.8× 1.1k 2.1× 463 1.0× 123 0.4× 136 1.7k
Jordi Sanchez Dahl Denmark 22 1.6k 0.9× 346 0.6× 387 0.7× 291 0.6× 531 1.6× 104 1.9k

Countries citing papers authored by Ursula Klaar

Since Specialization
Citations

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

Fields of papers citing papers by Ursula Klaar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ursula Klaar

This figure shows the co-authorship network connecting the top 25 collaborators of Ursula Klaar. A scholar is included among the top collaborators of Ursula Klaar 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 Ursula Klaar. Ursula Klaar 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.
Uusküla, Anneli, et al.. (2013). Incidence of Cervical Intraepithelial Neoplasia in Estonia. Journal of Lower Genital Tract Disease. 17(2). 129–136. 4 indexed citations
2.
Klaar, Ursula, Harald Gabriel, Jutta Bergler‐Klein, et al.. (2010). Prognostic Value of Serial B-Type Natriuretic Peptide Measurement in Asymptomatic Organic Mitral Regurgitation. European Journal of Heart Failure. 13(2). 163–169. 41 indexed citations
3.
Fuchs, Christian, Julia Mascherbauer, Raphaël Rosenhek, et al.. (2010). Gender differences in clinical presentation and surgical outcome of aortic stenosis. Heart. 96(7). 539–545. 102 indexed citations
4.
Rosenhek, Raphaël, Harald Gabriel, Florian Rader, et al.. (2010). Benefit of atrial septal defect closure in adults: impact of age. European Heart Journal. 32(5). 553–560. 102 indexed citations
5.
Mascherbauer, Julia, Raphaël Rosenhek, Christina Fuchs, et al.. (2008). Moderate patient-prosthesis mismatch after valve replacement for severe aortic stenosis has no impact on short-term and long-term mortality. Heart. 94(12). 1639–1645. 34 indexed citations
6.
Graf, Senta, et al.. (2008). Heterogeneity of traumatic injury of the tricuspid valve: A report of four cases. Wiener klinische Wochenschrift. 120(15-16). 499–503. 10 indexed citations
7.
Osranek, Martin, James B. Seward, Jutta Bergler‐Klein, et al.. (2007). Diastolic function assessment in clinical practice: The value of 2-dimensional echocardiography. American Heart Journal. 154(1). 130–136. 18 indexed citations
8.
Rosenhek, Raphaël, Florian Rader, Ursula Klaar, et al.. (2006). Outcome of Watchful Waiting in Asymptomatic Severe Mitral Regurgitation. Circulation. 113(18). 2238–2244. 322 indexed citations
9.
Bergler‐Klein, Jutta, Ursula Klaar, Maria Heger, et al.. (2005). Big endothelin-1 is not a predictor in aortic stenosis, but is related to arterial blood pressure. International Journal of Cardiology. 113(2). 174–180. 7 indexed citations
10.
Bergler‐Klein, Jutta, Ursula Klaar, & Maria Heger. (2004). Natriuretic peptides predict symptom-free survival and postoperative outcome in severe aortic stenosis. ACC Current Journal Review. 13(8). 32–32. 11 indexed citations
11.
Rehema, Aune, Kersti Zilmer, Ursula Klaar, et al.. (2004). Ferrous iron administration during pregnancy and adaptational oxidative stress (Pilot study).. PubMed. 40(6). 547–52. 13 indexed citations
12.
Rosenhek, Raphaël, Ursula Klaar, Maria Heger, et al.. (2003). Risk stratification in mild and moderate aortic stenosis by assessment of aortic valve calcification. Journal of the American College of Cardiology. 41(6). 506–506. 1 indexed citations
13.
Klaar, Ursula, Rudolf Berger, Marianne Gwechenberger, et al.. (2003). Relationship between dobutamine response of dyssynergic myocardium and angiographically documented blood supply. Journal of the American Society of Echocardiography. 16(9). 949–957. 1 indexed citations
14.
Henk, Christine B., S. Grampp, Maria Schoder, et al.. (2001). Elimination of errors caused by first-order aliasing in velocity encoded cine-MR measurements of postoperative jets after aortic coarctation: in vitro and in vivo validation. European Radiology. 12(6). 1523–1531. 9 indexed citations
15.
Hoffmann, Udo, et al.. (2001). Afterload reduction in severe aortic regurgitation. Journal of Magnetic Resonance Imaging. 14(6). 693–697. 5 indexed citations
16.
Baumgartner, Helmut, Gerold Porenta, Michael Wutte, et al.. (1998). Assessment of myocardial viability by dobutamine echocardiography, positron emission tomography and thallium-201 SPECT. Journal of the American College of Cardiology. 32(6). 1701–1708. 88 indexed citations
17.
Neunteufl, Thomas, Reinhold Katzenschlager, Ali Hassan, et al.. (1997). Systemic endothelial dysfunction is related to the extent and severity of coronary artery disease. Atherosclerosis. 129(1). 111–118. 420 indexed citations
18.
Zehetgruber, Manfred, Gerald Mundigler, Günter Christ, et al.. (1997). Relation of Hemodynamic Variables to Augmentation of Left Anterior Descending Coronary Flow by Intraaortic Balloon Pulsation in Coronary Artery Disease. The American Journal of Cardiology. 80(7). 951–955. 14 indexed citations
19.
Globits, Sebastian, Gerhard Kreiner, Herbert Frank, et al.. (1997). Significance of Morphological Abnormalities Detected by MRI in Patients Undergoing Successful Ablation of Right Ventricular Outflow Tract Tachycardia. Circulation. 96(8). 2633–2640. 87 indexed citations
20.
Sunder‐Plassmann, Gere, et al.. (1994). Functional characterization of cytokine autoantibodies in chronic renal failure patients. Kidney International. 45(5). 1484–1488. 12 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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