Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as Scientists Last 6 Years' i10 Index, Universities Total i10 Index Rankings 2025, Universities Last 6 Years' i10 Index Rankings 2025, Art and Humanities i10 Productivity Rankings, and Social Sciences and Humanities i10 Productivity Rankings.
* Total i10 IndexRankings
Ranking Based On Selection :1
Oesophageal. pericardial
pleural and lung diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
* Total i10 IndexRankings
Ranking Based On Selection :2
Cardiothoracic surgery
vascular surgery
esophageal surgery
surgical education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
* Total i10 IndexRankings
Ranking Based On Selection :3
Cardiothoracic Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
* Total i10 IndexRankings
Ranking Based On Selection :4
Cardiac surgery
Thoracic Surgery
Vascular surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
* Total i10 IndexRankings
Ranking Based On Selection :5
Cardiac Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
* Total i10 IndexRankings
Ranking Based On Selection :6
Cardiothoracic surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
3
0.500
* Total i10 IndexRankings
Ranking Based On Selection :7
Cardiothoracic
Vascular and General Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
* Total i10 IndexRankings
Ranking Based On Selection :8
Cardiothoracic and vascular surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection :9
Vascular Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection :10
Cardiac surgery
thoracic surgery
Vascular Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :11
Cardiothoracic Surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection :12
Cardiothoracic and Vascular surgery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
Kelechi Okonta
University of Port Harcourt
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
Oesophageal. pericardial
pleural and lung diseases
John C. Eze
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
8
0.500
Cardiothoracic surgery
vascular surgery
esophageal surgery
surgical education
Abubakar Umar
Usmanu Danfodiyo University
Sokoto, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Cardiothoracic Surgery
Olugbenga Olalekan Ojo
Obafemi Awolowo University
Ile-Ife, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
Cardiac surgery
Thoracic Surgery
Vascular surgery
Abbas Khani_Hanjani
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
Ibrahim Zira Delia|Delia Ibrahim Zira
Ahmadu Bello University
Zaria, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
3
0.500
Cardiothoracic surgery
Anietimfon U. Etiuma
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
Cardiothoracic
Vascular and General Surgery
Muhammad Aminu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
0
0.000
Cardiothoracic and vascular surgery
Kylie E. Kvinlaug
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Sufyan Ibrahim
Ahmadu Bello University
Zaria, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Cardiac surgery
thoracic surgery
Vascular Surgery
Chukwuma Innocent Ngene
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
Cardiothoracic Surgery
Christian Emeka Amadi
University of Port Harcourt
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
Cardiothoracic and Vascular surgery