Anja Lehner

492 total citations
44 papers, 302 citations indexed

About

Anja Lehner is a scholar working on Epidemiology, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Anja Lehner has authored 44 papers receiving a total of 302 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Epidemiology, 25 papers in Surgery and 18 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Anja Lehner's work include Congenital Heart Disease Studies (22 papers), Cardiac Valve Diseases and Treatments (13 papers) and Cardiac Structural Anomalies and Repair (13 papers). Anja Lehner is often cited by papers focused on Congenital Heart Disease Studies (22 papers), Cardiac Valve Diseases and Treatments (13 papers) and Cardiac Structural Anomalies and Repair (13 papers). Anja Lehner collaborates with scholars based in Germany, Bolivia and United States. Anja Lehner's co-authors include Nikolaus Haas, Ingram Schulze‐Neick, André Jakob, Marcus Fischer, Robert Dalla Pozza, Rainer Kozlik‐Feldmann, Edward Malec, Katarzyna Januszewska, Heinrich Netz and Robert Dalla‐Pozza and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and Journal of Thoracic and Cardiovascular Surgery.

In The Last Decade

Anja Lehner

37 papers receiving 291 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Anja Lehner Germany 11 195 167 136 115 61 44 302
Eugen Sandica Germany 12 267 1.4× 243 1.5× 250 1.8× 129 1.1× 122 2.0× 42 461
William Ravekes United States 8 174 0.9× 166 1.0× 88 0.6× 126 1.1× 26 0.4× 13 265
Kizuku Yamashita Japan 12 159 0.8× 238 1.4× 199 1.5× 110 1.0× 63 1.0× 63 368
Keti Vitanova Germany 9 213 1.1× 156 0.9× 159 1.2× 138 1.2× 29 0.5× 51 285
Ute Blanz Germany 14 357 1.8× 264 1.6× 335 2.5× 159 1.4× 129 2.1× 37 562
Nicolas Brozzi United States 9 196 1.0× 299 1.8× 211 1.6× 114 1.0× 70 1.1× 42 415
Luis J. Rosado United States 11 143 0.7× 227 1.4× 244 1.8× 104 0.9× 50 0.8× 20 379
Erik E. Lewis United States 10 87 0.4× 70 0.4× 102 0.8× 179 1.6× 26 0.4× 16 266
Paolo Ius Italy 9 160 0.8× 221 1.3× 187 1.4× 120 1.0× 17 0.3× 15 332
Sanjay Theodore India 11 146 0.7× 224 1.3× 254 1.9× 136 1.2× 23 0.4× 32 407

Countries citing papers authored by Anja Lehner

Since Specialization
Citations

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

Fields of papers citing papers by Anja Lehner

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Anja Lehner

This figure shows the co-authorship network connecting the top 25 collaborators of Anja Lehner. A scholar is included among the top collaborators of Anja Lehner 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 Anja Lehner. Anja Lehner 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.
Januszewska, Katarzyna, et al.. (2020). Geometry of the pulmonary arteries before the Fontan operation: can we influence it during the Norwood procedure?. European Journal of Cardio-Thoracic Surgery. 57(6). 1098–1104.
2.
Lehner, Anja, et al.. (2020). Percutaneous pulmonary valve implantation in a dysfunctional Trifecta® bioprothesis after high‐pressure balloon fracturing. Catheterization and Cardiovascular Interventions. 95(7). 1310–1313.
3.
Schramm, René, Anja Lehner, Daniel Braun, et al.. (2020). Cardiac allograft vasculopathy: Differences of absolute and relative intimal hyperplasia in children versus adults in optical coherence tomography. International Journal of Cardiology. 328. 227–234. 6 indexed citations
4.
Lehner, Anja, et al.. (2019). The Creation of an Interatrial Right-To-Left Shunt in Patients with Severe, Irreversible Pulmonary Hypertension: Rationale, Devices, Outcomes. Current Cardiology Reports. 21(5). 31–31. 16 indexed citations
5.
Hufnagel, Markus, Reinhard Berner, Michael J. Fischer, et al.. (2019). Breastfeeding and vitamin D supplementation reduce the risk of Kawasaki disease in a German population-based case-control study. BMC Pediatrics. 19(1). 66–66. 17 indexed citations
6.
7.
Jakob, André, et al.. (2019). Von Willebrand factor parameters as potential biomarkers for disease activity and coronary artery lesion in patients with Kawasaki disease. European Journal of Pediatrics. 179(3). 377–384. 10 indexed citations
8.
Lehner, Anja, et al.. (2019). Percutaneous closure of patent ductus arteriosus with the Nit-Occlud® patent ductus arteriosus device in 268 consecutive cases. Annals of Pediatric Cardiology. 12(3). 206–206. 2 indexed citations
9.
10.
Haas, Nikolaus, Kai Thorsten Laser, Eugen Sandica, et al.. (2018). The risk of bacterial endocarditis after percutaneous and surgical biological pulmonary valve implantation. International Journal of Cardiology. 268. 55–60. 24 indexed citations
11.
Lehner, Anja, Ingram Schulze‐Neick, & Nikolaus Haas. (2018). Creation of a defined and stable Fontan fenestration with the new Occlutech Atrial Flow Regulator (AFR®). Cardiology in the Young. 28(8). 1062–1066. 18 indexed citations
12.
Januszewska, Katarzyna, et al.. (2017). Lateral Atrial Tunnel Fontan Operation Predisposes to the Junctional Rhythm. Pediatric Cardiology. 38(4). 712–718. 3 indexed citations
13.
Haas, Nikolaus, et al.. (2017). Filling the Gap in the Detection and Management of Dysrhythmia: The Life Vest. The Thoracic and Cardiovascular Surgeon. 65(S 02). S111–S142. 1 indexed citations
14.
Lehner, Anja, Robert Dalla‐Pozza, Rainer Kozlik‐Feldmann, et al.. (2014). Influence of Pulmonary Artery Size on Early Outcome After the Fontan Operation. The Annals of Thoracic Surgery. 97(4). 1387–1393. 17 indexed citations
15.
Januszewska, Katarzyna, Alexander Schuh, Anja Lehner, et al.. (2013). Lateral Atrial Tunnel and Extracardiac Conduit in Fontan Operation - Comparison of Early Results. The Thoracic and Cardiovascular Surgeon. 61(S 02). 1 indexed citations
16.
Lehner, Anja, Rainer Kozlik‐Feldmann, Robert Dalla‐Pozza, et al.. (2012). An Unusual Form of Supracardiac Total Anomalous Pulmonary Venous Return Via a Right-Sided Vertical Vein in a Heterotaxy Syndrome Case. Pediatric Cardiology. 33(7). 1200–1202. 2 indexed citations
17.
Kozlik‐Feldmann, Rainer, Nora Lang, Anja Lehner, et al.. (2009). Evaluation of a new hybrid technique for closure of muscular ventricular septal defects in a long-term setting. Journal of Thoracic and Cardiovascular Surgery. 138(2). 365–373. 3 indexed citations
18.
Lang, Nora, Christoph Schmitz, Anja Lehner, et al.. (2009). Preclinical evaluation of a new self‐expanding device for closure of muscular ventricular septal defects in a pig model. Catheterization and Cardiovascular Interventions. 75(3). 408–415. 4 indexed citations
19.
Kozlik‐Feldmann, Rainer, Nora Lang, Anja Lehner, et al.. (2008). Patch Closure of Muscular Ventricular Septal Defects With a New Hybrid Therapy in a Pig Model. Journal of the American College of Cardiology. 51(16). 1597–1603. 14 indexed citations
20.
Kerkhoff, Gert, et al.. (2004). Left Ventricular Pseudoaneurysm. Circulation. 109(20). e222–3. 1 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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