Katharina Hellhammer

774 total citations
55 papers, 462 citations indexed

About

Katharina Hellhammer is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery. According to data from OpenAlex, Katharina Hellhammer has authored 55 papers receiving a total of 462 indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Cardiology and Cardiovascular Medicine, 34 papers in Epidemiology and 20 papers in Surgery. Recurrent topics in Katharina Hellhammer's work include Cardiac Valve Diseases and Treatments (48 papers), Infective Endocarditis Diagnosis and Management (33 papers) and Cardiac Imaging and Diagnostics (12 papers). Katharina Hellhammer is often cited by papers focused on Cardiac Valve Diseases and Treatments (48 papers), Infective Endocarditis Diagnosis and Management (33 papers) and Cardiac Imaging and Diagnostics (12 papers). Katharina Hellhammer collaborates with scholars based in Germany, United States and Netherlands. Katharina Hellhammer's co-authors include Tobias Zeus, Malte Kelm, Verena Veulemans, Ralf Westenfeld, Shazia Afzal, Amin Polzin, Tienush Rassaf, Kerstin Piayda, Jan C. Balzer and Christian Jung and has published in prestigious journals such as Journal of the American College of Cardiology, PLoS ONE and European Heart Journal.

In The Last Decade

Katharina Hellhammer

50 papers receiving 458 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Katharina Hellhammer Germany	12	417	251	132	103	102	55	462
Vinayak Bapat United Kingdom	13	561 1.3×	429 1.7×	197 1.5×	142 1.4×	132 1.3×	27	606
Tetsuro Shimura Japan	10	256 0.6×	133 0.5×	94 0.7×	105 1.0×	86 0.8×	31	313
Hashrul Rashid Australia	11	362 0.9×	198 0.8×	117 0.9×	79 0.8×	149 1.5×	40	435
Cristina Ciuca Italy	11	435 1.0×	345 1.4×	87 0.7×	206 2.0×	80 0.8×	30	472
Jakob Ledwoch Germany	14	404 1.0×	162 0.6×	143 1.1×	80 0.8×	78 0.8×	43	481
Barbara Bordoni Italy	9	361 0.9×	244 1.0×	112 0.8×	155 1.5×	103 1.0×	17	399
David Zahler Israel	10	265 0.6×	144 0.6×	77 0.6×	75 0.7×	53 0.5×	41	351
Dustin Kliner United States	12	368 0.9×	158 0.6×	114 0.9×	150 1.5×	63 0.6×	48	412
Antonio Dager Colombia	9	334 0.8×	241 1.0×	95 0.7×	88 0.9×	83 0.8×	18	373
Matteo Saccocci Italy	10	353 0.8×	93 0.4×	138 1.0×	88 0.9×	58 0.6×	27	413

Countries citing papers authored by Katharina Hellhammer

Since Specialization

Citations

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

Fields of papers citing papers by Katharina Hellhammer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Katharina Hellhammer

This figure shows the co-authorship network connecting the top 25 collaborators of Katharina Hellhammer. A scholar is included among the top collaborators of Katharina Hellhammer 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 Katharina Hellhammer. Katharina Hellhammer 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

Hellhammer, Katharina, Rolf Alexander Jánosi, Alexander Lind, et al.. (2025). Prospective Analysis of the Feasibility of the PASCAL System for Transcatheter Mitral Valve Repair (OneForAll‐Registry). Catheterization and Cardiovascular Interventions. 105(6). 1510–1515. 1 indexed citations

Hellhammer, Katharina, Tobias Geisler, Muhammed Gerçek, et al.. (2025). Predictability of post-delivery mitral regurgitation with a new generation transcatheter edge-to-edge device. Clinical Research in Cardiology.

Piayda, Kerstin, Katharina Hellhammer, Verena Veulemans, et al.. (2022). Multi-Slice Computed Tomography Analysis in Patients Undergoing Transcatheter Aortic Valve Replacement – Impact of Workflows on Measurement of Virtual Aortic Annulus and Valve Size. Frontiers in Cardiovascular Medicine. 9. 877511–877511.

Hellhammer, Katharina, Robert Schueler, Brigitte Schumacher, et al.. (2022). Safety of transesophageal echocardiography during transcatheter edge-to-edge tricuspid valve repair: A single-center experience. Frontiers in Cardiovascular Medicine. 9. 856028–856028. 5 indexed citations

Veulemans, Verena, Katharina Hellhammer, Oliver Maier, et al.. (2021). Short- and Mid-Term Outcomes in Patients Deemed Inoperable Undergoing Transapical and Transfemoral TAVR with an STS-PROM below Four Percent. Journal of Clinical Medicine. 10(13). 2993–2993. 1 indexed citations

Piayda, Kerstin, Shazia Afzal, Verena Veulemans, et al.. (2021). TCT-365 Dynamic Coronary Roadmap for Percutaneous Coronary Intervention Effectively Reduces Contrast Medium Exposure: Insights From an Open-Label, Randomized Trial. Journal of the American College of Cardiology. 78(19). B150–B150. 1 indexed citations

Hellhammer, Katharina, Maximilian Spieker, Peter Luedike, et al.. (2021). Predictors of functional mitral regurgitation recurrence after percutaneous mitral valve repair. Heart and Vessels. 36(10). 1574–1583. 3 indexed citations

Afzal, Shazia, Kerstin Piayda, Oliver Maier, et al.. (2020). Current and Future Aspects of Multimodal Imaging, Diagnostic, and Treatment Strategies in Bicuspid Aortic Valve and Associated Aortopathies. Journal of Clinical Medicine. 9(3). 662–662. 1 indexed citations

Veulemans, Verena, Oliver Maier, Katharina Hellhammer, et al.. (2020). Impact of Combined “CHADS-BLED” Score to Predict Short-Term Outcomes in Transfemoral and Transapical Aortic Valve Replacement. Journal of Interventional Cardiology. 2020. 1–9. 2 indexed citations

10.

Afzal, Shazia, Verena Veulemans, Kerstin Piayda, et al.. (2020). Real-Time Echocardiographic-Fluoroscopic Fusion Imaging for Transcatheter Edge-to-Edge Mitral Valve Repair. Journal of the American Society of Echocardiography. 33(5). 635–636. 4 indexed citations

11.

Piayda, Kerstin, et al.. (2020). Delivery Catheter Capsule Demolition During the Deployment of a Medtronic CoreValve Evolut R. JACC: Cardiovascular Interventions. 13(9). e79–e80.

12.

Piayda, Kerstin, Katharina Hellhammer, Verena Veulemans, et al.. (2020). Performance of the CoreValve Evolut R and PRO in Severely Calcified Anatomy: A Propensity Score Matched Analysis. Heart Lung and Circulation. 29(12). 1847–1855. 4 indexed citations

13.

Hellhammer, Katharina, Kerstin Piayda, Shazia Afzal, et al.. (2019). Micro-dislodgement during transcatheter aortic valve implantation with a contemporary self-expandable prosthesis. PLoS ONE. 14(11). e0224815–e0224815. 5 indexed citations

14.

Hellhammer, Katharina, Shazia Afzal, Maximilian Spieker, et al.. (2018). High body mass index is a risk factor for difficult deep sedation in percutaneous mitral valve repair. PLoS ONE. 13(1). e0190590–e0190590. 8 indexed citations

15.

Spieker, Maximilian, Katharina Hellhammer, Tobias Zeus, et al.. (2018). Effect of Acute Kidney Injury After Percutaneous Mitral Valve Repair on Outcome. The American Journal of Cardiology. 122(2). 316–322. 29 indexed citations

16.

Rammos, Christos, Tobias Zeus, Jan C. Balzer, et al.. (2016). Left Atrial and Left Ventricular Function and Remodeling Following Percutaneous Mitral Valve Repair.. PubMed. 25(3). 309–319. 12 indexed citations

17.

Rammos, Christos, Tobias Zeus, Jan C. Balzer, et al.. (2016). Percutaneous Mitral Valve Repair in Mitral Regurgitation Reduces Cell-Free Hemoglobin and Improves Endothelial Function. PLoS ONE. 11(3). e0151203–e0151203. 5 indexed citations

18.

Hellhammer, Katharina. (2016). Red cell distribution width in anemic patients undergoing transcatheter aortic valve implantation. World Journal of Cardiology. 8(2). 220–220. 10 indexed citations

19.

Afzal, Shazia, Verena Veulemans, Jan C. Balzer, et al.. (2016). Safety and efficacy of transseptal puncture guided by real-time fusion of echocardiography and fluoroscopy. Netherlands Heart Journal. 25(2). 131–136. 30 indexed citations

20.

Hellhammer, Katharina, Tobias Zeus, Jan C. Balzer, et al.. (2014). Safety and Efficacy of Percutaneous Mitral Valve Repair Using the MitraClip® System in Patients with Diabetes Mellitus. PLoS ONE. 9(11). e111178–e111178. 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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