Citation Rankings
Highly Cited Researchers

Medical and Health Sciences / Cardiology Highly Cited Researchers Citation in South Africa Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
South Africa
Karen Sliwa
cardiology
heart failure
Africa
peripartum
covid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,841
92,903
0.637
* Total Citation Counts Rankings
Ranking Based On Selection :2
South Africa
Liesl Zuhlke
Paediatric Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,423
61,793
0.853
* Total Citation Counts Rankings
Ranking Based On Selection :3
South Africa
Anil Chuturgoon
mycotoxins
apoptosis
genetics
cardiology
rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,393
4,295
0.672
* Total Citation Counts Rankings
Ranking Based On Selection :4
South Africa
Georgia Schäfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,873
1,339
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :5
South Africa
Lisa Ware
cardiovascular disease
nutrition
physical activity
health psychology
HIV
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,060
1,551
0.753
* Total Citation Counts Rankings
Ranking Based On Selection :6
South Africa
John Lawrenson
Paediatric Cardiology Rheumatic Heart Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,038
1,000
0.491
* Total Citation Counts Rankings
Ranking Based On Selection :7
South Africa
Wayne Smith
Cardiovascular Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,523
942
0.619
* Total Citation Counts Rankings
Ranking Based On Selection :8
South Africa
Carina Mels
Cardiovascular disease
hypertension
oxidative stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,422
1,005
0.707
* Total Citation Counts Rankings
Ranking Based On Selection :9
South Africa
Christopher Sutton
Paediatric Cardiology
Haemophilia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,113
751
0.675
* Total Citation Counts Rankings
Ranking Based On Selection :10
South Africa
Frederic Nduhirabandi
Cardiovascular disease
obesity and diabetes
melatonin
molecular medicine
cardioprotection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
766
385
0.503
* Total Citation Counts Rankings
Ranking Based On Selection :11
South Africa
Philip Herbst
Echocardiography
Valvular heart disease
Rheumatic heart disease
Congenital heart disease
Cardiac MRI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
632
536
0.848
* Total Citation Counts Rankings
Ranking Based On Selection :12
South Africa
Charle André Viljoen
Cardiology
Arrhythmias
Cardiomyopathy
Heart Failure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
559
0.991
* Total Citation Counts Rankings
Ranking Based On Selection :13
South Africa
Hellmuth Weich
interventional cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
542
335
0.618
* Total Citation Counts Rankings
Ranking Based On Selection :14
South Africa
Nqoba Tsabedze
Heart Failure
Hypertension
Cardiac Imaging
HIV Associated Cardiac Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
456
400
0.877
* Total Citation Counts Rankings
Ranking Based On Selection :15
South Africa
Rik De Decker
Pediatric cardiology
cardiogenetics
medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
326
197
0.604
* Total Citation Counts Rankings
Ranking Based On Selection :16
South Africa
Ruchika Meel
Cardiology
Imaging
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
268
0.870
* Total Citation Counts Rankings
Ranking Based On Selection :17
South Africa
Alfonso Jan Kemp Pecoraro
Cardiology
Echocardiography
Infective Endocarditis
Rheumatic heart disease
Acute coronary
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
227
0.954
* Total Citation Counts Rankings
Ranking Based On Selection :18
South Africa
Riette Du Toit
Rheumatology
Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
148
0.722
* Total Citation Counts Rankings
Ranking Based On Selection :19
South Africa
George Comitis
Paediatric Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179
151
0.844
* Total Citation Counts Rankings
Ranking Based On Selection :20
South Africa
Kishal Lukhna
Cardiology - Acute Coronary Syndromes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
55
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :21
South Africa
Thomas Aldersley|Thomas J Aldersley
Paediatric Cardiology Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :22
South Africa
Zongezile Masonwabe Makrexeni
cardiovascular disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840
* Total Citation Counts Rankings
Rankings
1,509
South Africa
4
3
Ranking Based On Selection: 1
Karen Sliwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,841
92,903
0.637
cardiology
heart failure
Africa
peripartum
covid
* Total Citation Counts Rankings
Rankings
5,501
South Africa
15
7
Ranking Based On Selection: 2
Liesl Zuhlke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,423
61,793
0.853
* Total Citation Counts Rankings
Rankings
160,691
South Africa
632
54
Ranking Based On Selection: 3
Anil Chuturgoon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,393
4,295
0.672
mycotoxins
apoptosis
genetics
cardiology
rheumatology
* Total Citation Counts Rankings
Rankings
334,318
South Africa
1,501
318
Ranking Based On Selection: 4
Georgia Schäfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,873
1,339
0.466
* Total Citation Counts Rankings
Rankings
431,461
South Africa
2,040
221
Ranking Based On Selection: 5
Lisa Ware
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,060
1,551
0.753
cardiovascular disease
nutrition
physical activity
health psychology
HIV
* Total Citation Counts Rankings
Rankings
434,846
South Africa
2,060
379
Ranking Based On Selection: 6
John Lawrenson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,038
1,000
0.491
* Total Citation Counts Rankings
Rankings
530,353
South Africa
2,590
123
Ranking Based On Selection: 7
Wayne Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,523
942
0.619
* Total Citation Counts Rankings
Rankings
553,679
South Africa
2,719
136
Ranking Based On Selection: 8
Carina Mels
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,422
1,005
0.707
Cardiovascular disease
hypertension
oxidative stress
* Total Citation Counts Rankings
Rankings
639,994
South Africa
3,227
22
Ranking Based On Selection: 9
Christopher Sutton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,113
751
0.675
* Total Citation Counts Rankings
Rankings
773,529
South Africa
4,029
640
Ranking Based On Selection: 10
Frederic Nduhirabandi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
766
385
0.503
Cardiovascular disease
obesity and diabetes
melatonin
molecular medicine
cardioprotection
* Total Citation Counts Rankings
Rankings
838,657
South Africa
4,415
513
Ranking Based On Selection: 11
Philip Herbst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
632
536
0.848
Echocardiography
Valvular heart disease
Rheumatic heart disease
Congenital heart disease
Cardiac MRI
* Total Citation Counts Rankings
Rankings
875,341
South Africa
4,669
714
Ranking Based On Selection: 12
Charle André Viljoen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
559
0.991
Cardiology
Arrhythmias
Cardiomyopathy
Heart Failure
* Total Citation Counts Rankings
Rankings
888,406
South Africa
4,764
555
Ranking Based On Selection: 13
Hellmuth Weich
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
542
335
0.618
* Total Citation Counts Rankings
Rankings
955,433
South Africa
5,234
511
Ranking Based On Selection: 14
Nqoba Tsabedze
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
456
400
0.877
Heart Failure
Hypertension
Cardiac Imaging
HIV Associated Cardiac Diseases
* Total Citation Counts Rankings
Rankings
1,090,657
South Africa
6,403
866
Ranking Based On Selection: 15
Rik De Decker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
326
197
0.604
Pediatric cardiology
cardiogenetics
medical education
* Total Citation Counts Rankings
Rankings
1,113,503
South Africa
6,591
653
Ranking Based On Selection: 16
Ruchika Meel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
268
0.870
* Total Citation Counts Rankings
Rankings
1,221,076
South Africa
7,539
813
Ranking Based On Selection: 17
Alfonso Jan Kemp Pecoraro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
238
227
0.954
Cardiology
Echocardiography
Infective Endocarditis
Rheumatic heart disease
Acute coronary
* Total Citation Counts Rankings
Rankings
1,284,984
South Africa
8,111
865
Ranking Based On Selection: 18
Riette Du Toit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
148
0.722
* Total Citation Counts Rankings
Rankings
1,342,474
South Africa
8,610
1,061
Ranking Based On Selection: 19
George Comitis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179
151
0.844
* Total Citation Counts Rankings
Rankings
1,799,779
South Africa
12,760
1,359
Ranking Based On Selection: 20
Kishal Lukhna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55
55
1.000
* Total Citation Counts Rankings
Rankings
1,867,625
South Africa
13,443
1,403
Ranking Based On Selection: 21
Thomas Aldersley|Thomas J Aldersley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
* Total Citation Counts Rankings
Rankings
2,024,896
South Africa
14,985
1
Ranking Based On Selection: 22
Zongezile Masonwabe Makrexeni
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840