Kai Friedrichs

3.3k total citations
61 papers, 1.3k citations indexed

About

Kai Friedrichs is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery. According to data from OpenAlex, Kai Friedrichs has authored 61 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Cardiology and Cardiovascular Medicine, 21 papers in Epidemiology and 14 papers in Surgery. Recurrent topics in Kai Friedrichs's work include Cardiac Valve Diseases and Treatments (45 papers), Cardiovascular Function and Risk Factors (23 papers) and Infective Endocarditis Diagnosis and Management (20 papers). Kai Friedrichs is often cited by papers focused on Cardiac Valve Diseases and Treatments (45 papers), Cardiovascular Function and Risk Factors (23 papers) and Infective Endocarditis Diagnosis and Management (20 papers). Kai Friedrichs collaborates with scholars based in Germany, United States and Austria. Kai Friedrichs's co-authors include Stephan Baldus, Anna Klinke, Volker Rudolph, Tanja K. Rudolph, Victor Mauri, Georg Nickenig, Stephan Rosenkranz, Jörg Hausleiter, Elmar Kuhn and Thorsten Wahlers and has published in prestigious journals such as Circulation, Blood and Journal of the American College of Cardiology.

In The Last Decade

Kai Friedrichs

45 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kai Friedrichs Germany 17 946 468 228 204 156 61 1.3k
Willem R.P. Agema Netherlands 14 539 0.6× 195 0.4× 205 0.9× 257 1.3× 149 1.0× 19 991
Delphine Corseaux France 20 352 0.4× 279 0.6× 183 0.8× 309 1.5× 158 1.0× 46 1.2k
Juergen Meyer Germany 15 308 0.3× 196 0.4× 201 0.9× 198 1.0× 222 1.4× 16 882
Hanjun Zhao China 15 377 0.4× 123 0.3× 139 0.6× 274 1.3× 82 0.5× 91 948
Joji Nitobe Japan 21 815 0.9× 167 0.4× 242 1.1× 172 0.8× 88 0.6× 46 1.4k
Tatsuya Fukutomi Japan 19 355 0.4× 134 0.3× 139 0.6× 396 1.9× 92 0.6× 40 969
Rebecca Nuzzo United States 6 317 0.3× 197 0.4× 277 1.2× 131 0.6× 45 0.3× 8 734
Thorsten Kälsch Germany 14 252 0.3× 123 0.3× 159 0.7× 121 0.6× 96 0.6× 36 707
Ju‐Pin Pan Taiwan 13 271 0.3× 158 0.3× 77 0.3× 185 0.9× 69 0.4× 28 821
Ramzi Khamis United Kingdom 11 232 0.2× 94 0.2× 238 1.0× 219 1.1× 108 0.7× 36 863

Countries citing papers authored by Kai Friedrichs

Since Specialization
Citations

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

Fields of papers citing papers by Kai Friedrichs

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kai Friedrichs

This figure shows the co-authorship network connecting the top 25 collaborators of Kai Friedrichs. A scholar is included among the top collaborators of Kai Friedrichs 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 Kai Friedrichs. Kai Friedrichs 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.
Narang, Akhil, Maria Isabel Körber, Kai Friedrichs, et al.. (2025). Assessment of the GLIDE Score for Prediction of Mild Tricuspid Regurgitation following Tricuspid Transcatheter Edge-to-Edge Repair. JACC Advances. 4(2). 101523–101523.
2.
Kirchner, Johannes, et al.. (2025). Predictive value of CT-based and AI-reconstructed 3D-TAPSE in patients undergoing transcatheter tricuspid valve repair. Frontiers in Cardiovascular Medicine. 11. 1463978–1463978.
3.
Miller, Max J., Johannes Kirchner, Sabine Bleiziffer, et al.. (2024). The influence of lipoprotein(a) on aortic valve calcification in patients undergoing transcatheter aortic valve replacement. Clinical Research in Cardiology. 114(3). 395–404. 2 indexed citations
4.
Kirchner, Johannes, Vera Fortmeier, Tanja K. Rudolph, et al.. (2024). A Comparative Study of 1-Year Postprocedural Outcomes in Transcatheter Mitral Valve Repair in Advanced Primary Mitral Regurgitation: PASCAL vs. MitraClip. Journal of Clinical Medicine. 13(2). 484–484.
5.
Althoff, J., Muhammed Gerçek, Christos Iliadis, et al.. (2024). Incidence and clinical impact of renal failure and bleeding following transcatheter tricuspid valve annuloplasty. Clinical Research in Cardiology. 114(2). 177–186. 1 indexed citations
6.
Gerçek, Muhammed, Maximilian Moersdorf, Arseniy Goncharov, et al.. (2024). Impact of right ventricular function on cardiopulmonary exercise capacity in mitral regurgitation patients undergoing transcatheter mitral valve intervention. Hellenic Journal of Cardiology.
7.
Friedrichs, Kai, et al.. (2024). Robustness of tricuspid regurgitation reduction at 1 year following edge-to-edge repair for primary tricuspid regurgitation. Clinical Research in Cardiology. 114(2). 251–260.
8.
Dannenberg, Varius, Philipp E. Bartko, Martin Andreas, et al.. (2023). Tricuspid edge-to-edge repair for tricuspid valve prolapse and flail leaflet: feasibility in comparison to patients with secondary tricuspid regurgitation. European Heart Journal - Cardiovascular Imaging. 25(3). 365–372. 3 indexed citations
9.
Gerçek, Muhammed, Arseniy Goncharov, Akhil Narang, et al.. (2023). Characterization of Screen Failures Among Patients Evaluated for Transcatheter Tricuspid Valve Repair (TriSelect-Study). JACC: Cardiovascular Interventions. 16(13). 1579–1589. 10 indexed citations
10.
Baldus, Stephan, Niklas Schofer, Jörg Hausleiter, et al.. (2022). Transcatheter valve repair of tricuspid regurgitation with the PASCAL system: TriCLASP study 30‐day results. Catheterization and Cardiovascular Interventions. 100(7). 1291–1299. 18 indexed citations
11.
Fortmeier, Vera, Mark Lachmann, Maria Isabel Körber, et al.. (2022). Solving the Pulmonary Hypertension Paradox in Patients With Severe Tricuspid Regurgitation by Employing Artificial Intelligence. JACC: Cardiovascular Interventions. 15(4). 381–394. 11 indexed citations
12.
Müller, Marion, Torben Schubert, Dragan Opačić, et al.. (2022). Right Heart Failure in Mice Upon Pressure Overload Is Promoted by Mitochondrial Oxidative Stress. JACC Basic to Translational Science. 7(7). 658–677. 16 indexed citations
13.
Gerçek, Muhammed, Fabian Roder, Tanja K. Rudolph, et al.. (2021). PASCAL mitral valve repair system versus MitraClip: comparison of transcatheter edge-to-edge strategies in complex primary mitral regurgitation. Clinical Research in Cardiology. 110(12). 1890–1899. 13 indexed citations
14.
Gerçek, Muhammed, et al.. (2021). Interatrial Thrombus in Left-Atrial Septal Pouch Prohibiting Transseptal Puncture for Percutaneous Mitral Valve Therapy. CJC Open. 3(6). 835–837. 3 indexed citations
15.
Körber, Maria Isabel, Kai Friedrichs, Victor Mauri, et al.. (2017). Bleeding Complications After Percutaneous Mitral Valve Repair With the MitraClip. The American Journal of Cardiology. 121(1). 94–99. 26 indexed citations
16.
Klinke, Anna, Michaela Pekarová, Thorben Ravekes, et al.. (2014). Protective Effects of 10-nitro-oleic Acid in a Hypoxia-Induced Murine Model of Pulmonary Hypertension. American Journal of Respiratory Cell and Molecular Biology. 51(1). 155–162. 58 indexed citations
17.
Friedrichs, Kai, Matti Adam, Martin Mollenhauer, et al.. (2014). Induction of Atrial Fibrillation by Neutrophils Critically Depends on CD11b/CD18 Integrins. PLoS ONE. 9(2). e89307–e89307. 52 indexed citations
18.
Friedrichs, Kai, Anna Klinke, & Stephan Baldus. (2011). Inflammatory pathways underlying atrial fibrillation. Trends in Molecular Medicine. 17(10). 556–563. 129 indexed citations
19.
Rudolph, Volker, Daniel Steven, Ursula M. Gehling, et al.. (2006). Coronary plaque injury triggers neutrophil activation in patients with coronary artery disease. Free Radical Biology and Medicine. 42(4). 460–465. 32 indexed citations
20.
Minckwitz, Gϋnter von, Serban Dan Costa, Peter Dall, et al.. (2002). Evidence-Based Recommendations on Treating Locoregional and Distant Metastases of Carcinomas of the Breast. Zentralblatt für Gynäkologie. 124(5). 284–292. 4 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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