Charle Viljoen

816 total citations
41 papers, 367 citations indexed

About

Charle Viljoen is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Charle Viljoen has authored 41 papers receiving a total of 367 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Cardiology and Cardiovascular Medicine, 16 papers in Surgery and 5 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Charle Viljoen's work include Cardiovascular Issues in Pregnancy (18 papers), Cardiac Structural Anomalies and Repair (15 papers) and Cardiac Arrhythmias and Treatments (7 papers). Charle Viljoen is often cited by papers focused on Cardiovascular Issues in Pregnancy (18 papers), Cardiac Structural Anomalies and Repair (15 papers) and Cardiac Arrhythmias and Treatments (7 papers). Charle Viljoen collaborates with scholars based in South Africa, Germany and United Kingdom. Charle Viljoen's co-authors include Karen Sliwa, Vanessa Burch, Rob Scott Millar, Kathryn Manning, Mark E. Engel, Mpiko Ntsekhe, Michael Böhm, Johann Bauersachs, Ameer Hohlfeld and Ashley Chin and has published in prestigious journals such as Journal of the American College of Cardiology, Neurology and European Heart Journal.

In The Last Decade

Charle Viljoen

38 papers receiving 356 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Charle Viljoen South Africa 12 231 129 45 33 33 41 367
Bernard Karnath United States 10 100 0.4× 106 0.8× 85 1.9× 67 2.0× 8 0.2× 51 368
Marty Tam United States 8 96 0.4× 76 0.6× 56 1.2× 10 0.3× 10 0.3× 21 229
David Warriner United Kingdom 10 74 0.3× 73 0.6× 38 0.8× 78 2.4× 5 0.2× 48 363
Lauren Kim United States 9 61 0.3× 59 0.5× 19 0.4× 32 1.0× 9 0.3× 15 320
Bryan Chow Canada 8 117 0.5× 87 0.7× 13 0.3× 34 1.0× 12 0.4× 16 315
Daniel King Israel 8 71 0.3× 37 0.3× 25 0.6× 38 1.2× 6 0.2× 29 270
Amy Thompson United States 10 154 0.7× 34 0.3× 33 0.7× 8 0.2× 7 0.2× 36 353
Reena Patel United States 11 97 0.4× 48 0.4× 35 0.8× 66 2.0× 6 0.2× 38 280
Patricia A. Ross United States 8 84 0.4× 118 0.9× 20 0.4× 11 0.3× 11 0.3× 26 313
Sanyog G. Shitole United States 11 107 0.5× 72 0.6× 81 1.8× 12 0.4× 24 0.7× 27 316

Countries citing papers authored by Charle Viljoen

Since Specialization
Citations

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

Fields of papers citing papers by Charle Viljoen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Charle Viljoen

This figure shows the co-authorship network connecting the top 25 collaborators of Charle Viljoen. A scholar is included among the top collaborators of Charle Viljoen 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 Charle Viljoen. Charle Viljoen 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.
2.
Sliwa, Karen, Alice M. Jackson, Charle Viljoen, et al.. (2025). Pregnancies in women after peri-partum cardiomyopathy: the global European Society of Cardiology EuroObservational Research Programme Peri-Partum Cardiomyopathy Registry. European Heart Journal. 46(11). 1031–1040. 4 indexed citations
3.
Sliwa, Karen, Charle Viljoen, Simon Stewart, et al.. (2024). Cardiovascular disease in low- and middle-income countries associated with environmental factors. European Journal of Preventive Cardiology. 31(6). 688–697. 24 indexed citations
4.
Sliwa, Karen, et al.. (2024). Adherence to Heart Failure Treatment in Patients with Peripartum Cardiomyopathy. ESC Heart Failure. 11(3). 1677–1687. 3 indexed citations
5.
Sliwa, Karen, Charle Viljoen, Babar Hasan, & Ntobeko Ntusi. (2023). Nutritional Heart Disease and Cardiomyopathies. Journal of the American College of Cardiology. 81(2). 187–202. 4 indexed citations
6.
Mwita, Julius Chacha, Hadiza Saidu, Mahmoud U. Sani, et al.. (2023). Objectively measured medication adherence using assays for carvedilol and enalaprilat in patients with heart failure in Mozambique and Nigeria. International Journal of Cardiology Cardiovascular Risk and Prevention. 19. 200213–200213. 3 indexed citations
7.
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Hohlfeld, Ameer, et al.. (2021). Outcomes and complications of peripartum cardiomyopathy: protocol for a systematic review and meta-analysis. BMJ Open. 11(10). e054994–e054994. 4 indexed citations
9.
Muller, Elmi, Fériel Azibani, Sarah Kraus, et al.. (2021). Prognostic value of NT-proBNP for myocardial recovery in peripartum cardiomyopathy (PPCM). Clinical Research in Cardiology. 110(8). 1259–1269. 24 indexed citations
10.
Gould, Thomas J., et al.. (2021). International normalised ratio control in a non-metropolitan setting in Western Cape Province, South Africa. South African Medical Journal. 111(4). 355–355. 4 indexed citations
11.
Mbakwem, Amam, Johann Bauersachs, Charle Viljoen, et al.. (2021). Electrocardiographic Features and their Echocardiographic Correlates in Peripartum Cardiomyopathy: Results from the ESC EORP PPCM Registry. ESC Heart Failure. 8(2). 879–889. 19 indexed citations
12.
Viljoen, Charle, et al.. (2021). Learn-teach-learn: Evaluating a South African near-peer teaching programme. African Journal of Health Professions Education. 13(4). 215–217. 1 indexed citations
13.
Viljoen, Charle, Rob Scott Millar, Kathryn Manning, & Vanessa Burch. (2020). Determining electrocardiography training priorities for medical students using a modified Delphi method. BMC Medical Education. 20(1). 431–431. 11 indexed citations
14.
Sliwa, Karen, et al.. (2020). Detection and management of arrhythmias in peripartum cardiomyopathy. Cardiovascular Diagnosis and Therapy. 10(2). 325–335. 17 indexed citations
15.
16.
Viljoen, Charle, et al.. (2019). The changing landscape of infective endocarditis in South Africa. South African Medical Journal. 109(8). 592–592. 15 indexed citations
17.
Viljoen, Charle, et al.. (2018). The prognostic significance of the 12-lead ECG in peripartum cardiomyopathy. International Journal of Cardiology. 276. 177–184. 23 indexed citations
18.
19.
Chin, Ashley, et al.. (2017). Rationale and design of a prospective study to assess the effect of left cardiac sympathetic denervation in chronic heart failure. International Journal of Cardiology. 248. 227–231. 15 indexed citations
20.
Viljoen, Charle, et al.. (2016). Intimomedial mucoid degeneration causing aortic and renal artery aneurysms in a young adult. PubMed. 27(1). 49–52. 3 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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2026