Andreas Schaefer

1.4k total citations
85 papers, 885 citations indexed

About

Andreas Schaefer is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery. According to data from OpenAlex, Andreas Schaefer has authored 85 papers receiving a total of 885 indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Cardiology and Cardiovascular Medicine, 39 papers in Epidemiology and 34 papers in Surgery. Recurrent topics in Andreas Schaefer's work include Cardiac Valve Diseases and Treatments (42 papers), Infective Endocarditis Diagnosis and Management (33 papers) and Cardiac Structural Anomalies and Repair (13 papers). Andreas Schaefer is often cited by papers focused on Cardiac Valve Diseases and Treatments (42 papers), Infective Endocarditis Diagnosis and Management (33 papers) and Cardiac Structural Anomalies and Repair (13 papers). Andreas Schaefer collaborates with scholars based in Germany, United States and Austria. Andreas Schaefer's co-authors include Hermann Reichenspurner, Lenard Conradi, Stefan Blankenberg, Y. Schneeberger, Niklas Schofer, P Haberey, François Piquard, Florian Deuschl, Moritz Seiffert and Ulrich Schäfer and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Journal of the American College of Cardiology.

In The Last Decade

Andreas Schaefer

75 papers receiving 866 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Andreas Schaefer Germany	17	522	383	233	225	107	85	885
Nazmi Narın Türkiye	17	332 0.6×	332 0.9×	192 0.8×	248 1.1×	117 1.1×	107	1.0k
H. R. Figulla Germany	16	930 1.8×	498 1.3×	223 1.0×	244 1.1×	165 1.5×	47	1.1k
Anant Khositseth Thailand	16	615 1.2×	293 0.8×	187 0.8×	223 1.0×	107 1.0×	50	1.0k
Semra Atalay Türkiye	18	423 0.8×	345 0.9×	227 1.0×	274 1.2×	92 0.9×	81	914
Matthias Bossard Switzerland	17	500 1.0×	124 0.3×	230 1.0×	192 0.9×	133 1.2×	56	904
Tamer Baysal Türkiye	17	223 0.4×	247 0.6×	208 0.9×	195 0.9×	101 0.9×	101	844
Kaan Kırali Türkiye	19	787 1.5×	407 1.1×	640 2.7×	421 1.9×	45 0.4×	166	1.3k
Tevfik Karagöz Türkiye	16	447 0.9×	282 0.7×	220 0.9×	254 1.1×	82 0.8×	128	816
René Andrié Germany	23	1.1k 2.0×	128 0.3×	221 0.9×	102 0.5×	186 1.7×	62	1.5k
Sally‐Ann B. Clur Netherlands	22	788 1.5×	573 1.5×	328 1.4×	359 1.6×	68 0.6×	86	1.4k

Countries citing papers authored by Andreas Schaefer

Since Specialization

Citations

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

Fields of papers citing papers by Andreas Schaefer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Andreas Schaefer

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

Ruge, Hendrik, Melchior Burri, Won‐Keun Kim, et al.. (2025). Bioprosthetic Valve Fracturing in Valve‐in‐Valve TAVI: Clinical and Echocardiographic Outcomes in Failing Perimount Aortic Bioprostheses—A Multicenter Registry. Catheterization and Cardiovascular Interventions. 106(2). 1409–1420. 1 indexed citations

Schaefer, Andreas, Tobias Koenig, Dominik Berliner, et al.. (2024). Supersaturated oxygen therapy in patients with acute anterior myocardial infarction reduces infarct size. European Heart Journal. 45(Supplement_1).

Beyer, Martin, Till Demal, Oliver D. Bhadra, et al.. (2024). Transcatheter aortic valve implantation in patients with significant septal hypertrophy. Clinical Research in Cardiology. 114(3). 332–340. 1 indexed citations

Schaefer, Andreas, B. Reiter, Svante Zipfel, et al.. (2024). Utilization of Vein Grafts in Coronary Artery Bypass Grafting: Reasons and Outcomes in a Bilateral Mammary Artery First Center. Journal of Cardiac Surgery. 2024(1). 1 indexed citations

Schneeberger, Y., Till Demal, Oliver D. Bhadra, et al.. (2023). Balloon‐expandable transcatheter heart valves for treatment of aortic valve stenosis in patients with large aortic annuli: Evaluation of deployment balloon overfilling strategies. Catheterization and Cardiovascular Interventions. 103(1). 194–201.

Wienemann, Hendrik, Oliver Maier, Martin K. Beyer, et al.. (2023). Cusp overlap versus standard three-cusp technique for self-expanding Evolut transcatheter aortic valves. EuroIntervention. 19(2). e176–e187. 13 indexed citations

Schaefer, Andreas, et al.. (2022). Permanent interstitial brachytherapy for prostate cancer implementing neoadjuvant prostatic artery embolization. Brachytherapy. 21(3). 308–316. 3 indexed citations

Schneeberger, Y., Moritz Seiffert, Andreas Schaefer, et al.. (2022). TAVI for Pure Non-calcified Aortic Regurgitation Using a Self-Expandable Transcatheter Heart Valve. Frontiers in Cardiovascular Medicine. 8. 743579–743579. 11 indexed citations

Schaefer, Andreas, Lenard Conradi, Y. Schneeberger, et al.. (2020). Clinical outcomes of complete versus incomplete revascularization in patients treated with coronary artery bypass grafting: insights from the TiCAB trial. European Journal of Cardio-Thoracic Surgery. 59(2). 417–425. 2 indexed citations

10.

Schaefer, Andreas, Y. Schneeberger, Steven Schulz, et al.. (2019). Analysis of fibrosis in control or pressure overloaded rat hearts after mechanical unloading by heterotopic heart transplantation. Scientific Reports. 9(1). 5710–5710. 8 indexed citations

11.

Schofer, Niklas, Florian Deuschl, Nicole Rübsamen, et al.. (2019). Prosthesis-patient mismatch after transcatheter aortic valve implantation: prevalence and prognostic impact with respect to baseline left ventricular function. EuroIntervention. 14(16). 1648–1655. 19 indexed citations

12.

Schaefer, Andreas, Florian Deuschl, Lenard Conradi, & Ulrich Schäfer. (2018). Valve‐in‐valve‐in‐valve: Balloon expandable transcatheter heart valve in failing self‐expandable transcatheter heart valve in deteriorated surgical bioprosthesis. Catheterization and Cardiovascular Interventions. 92(7). E481–E485. 2 indexed citations

13.

Schofer, Niklas, Florian Deuschl, Gerhard Schön, et al.. (2018). Comparative analysis of balloon- versus mechanically-expandable transcatheter heart valves considering landing zone calcification. Journal of Cardiology. 71(6). 540–546. 7 indexed citations

14.

Vanags, Laura Z., Joanne T. M. Tan, Keyvan Karimi Galougahi, et al.. (2018). Apolipoprotein A-I Reduces In-Stent Restenosis and Platelet Activation and Alters Neointimal Cellular Phenotype. JACC Basic to Translational Science. 3(2). 200–209. 17 indexed citations

15.

Deuschl, Florian, Niklas Schofer, Moritz Seiffert, et al.. (2017). Direct percutaneous transaxillary implantation of a novel self‐expandable transcatheter heart valve for aortic stenosis. Catheterization and Cardiovascular Interventions. 90(7). 1167–1174. 13 indexed citations

16.

Schaefer, Andreas, Matthias Linder, Moritz Seiffert, et al.. (2017). Comparison of latest generation transfemoral self-expandable and balloon-expandable transcatheter heart valves. Interactive Cardiovascular and Thoracic Surgery. 25(6). 905–911. 11 indexed citations

17.

Schaefer, Andreas, Moritz Seiffert, Daniel Reichart, et al.. (2016). First experience with transfemoral transcatheter aortic valve implantation without prior balloon pre-dilatation using a latest generation repositionable and retrievable transcatheter heart valve†. Interactive Cardiovascular and Thoracic Surgery. 24(5). 659–662. 2 indexed citations

18.

Schaefer, Andreas, Matthias Linder, Hendrik Treede, et al.. (2015). Applicability of next generation balloon-expandable transcatheter heart valves in aortic annuli exceeding formally approved dimensions. Clinical Research in Cardiology. 105(7). 585–591. 13 indexed citations

19.

Schaefer, Andreas, et al.. (2014). EFFICACY OF PRASUGREL IN RESUSCITATED PATIENTS DURING THERAPEUTIC HYPOTHERMIA AFTER PERCUTANEOUS CORONARY INTERVENTION FOR ACUTE MYOCARDIAL INFARCTION. Journal of the American College of Cardiology. 63(12). A102–A102. 1 indexed citations

20.

Loeckinger, Alexander, Axel Kleinsasser, C. Keller, et al.. (2002). Administration of Oxygen Before Tracheal Extubation Worsens Gas Exchange After General Anesthesia in a Pig Model. Anesthesia & Analgesia. 95(6). 1772–1776. 15 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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