Citation Rankings
Highly Cited Researchers
Imperial College London Highly Cited Researchers CitationMedical and Health Sciences / General Surgery 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
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,025
53,657
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :2
Colorectal cancer
Anal Cancer
Inflammatory bowel disease
Diverticular disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,569
16,798
0.404
* Total Citation Counts Rankings
Ranking Based On Selection :3
Surgery
Laparoscopic surgery
oesophago-gastric cancer
volatile organic compounds
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,922
15,143
0.584
* Total Citation Counts Rankings
Ranking Based On Selection :4
surgery
obesity
artificial intelligence
philosophy
diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,661
16,674
0.705
* Total Citation Counts Rankings
Ranking Based On Selection :5
Surgery
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,118
14,053
0.776
* Total Citation Counts Rankings
Ranking Based On Selection :6
surgery
robotics
digital health
AI & ML in healthcare
obesity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,611
6,064
0.446
* Total Citation Counts Rankings
Ranking Based On Selection :7
Colorectal Cancer
Colorectal Surgery
Medical leadership and management
hernia and abdominal wall reconstruction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,987
8,052
0.806
* Total Citation Counts Rankings
Ranking Based On Selection :8
Endoscopy
Surgical Imaging
Polarization-resolved Endoscopy
Multispectral Endoscopy
Image-Guided Intervention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,555
5,889
0.616
* Total Citation Counts Rankings
Ranking Based On Selection :9
bariatric surgery
microbial function
colon cancer
diet
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,342
5,026
0.538
* Total Citation Counts Rankings
Ranking Based On Selection :10
Surgery
Patient Safety
Simulation
Technology
mHealth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,078
5,760
0.713
* Total Citation Counts Rankings
Ranking Based On Selection :11
Colorectal Cancer
Pelvic exenterative surgery
Robotic Surgery
Pelvic floor disorders
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,321
6,859
0.937
* Total Citation Counts Rankings
Ranking Based On Selection :12
HPB Surgery
Liver and Pancreatic Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,678
4,466
0.669
* Total Citation Counts Rankings
Ranking Based On Selection :13
Surgical innovation
Cognitive load assessment
Neural Engineering Brain computer Interfaces
Machine learning Artificial intell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,612
2,281
0.345
* Total Citation Counts Rankings
Ranking Based On Selection :14
Surgery
General Surgery
Surgical Technology
Medicine
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,523
5,129
0.929
* Total Citation Counts Rankings
Ranking Based On Selection :15
Trauma
Acute Care Surgery
Damage Control Resuscitation
General Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,209
3,441
0.818
* Total Citation Counts Rankings
Ranking Based On Selection :16
Surgical epidemiology
Colorectal Surgery
Surgical Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,537
2,068
0.585
* Total Citation Counts Rankings
Ranking Based On Selection :17
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,389
3,255
0.960
* Total Citation Counts Rankings
Ranking Based On Selection :18
Colorectal surgery
Neurogastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,729
2,109
0.773
* Total Citation Counts Rankings
Ranking Based On Selection :19
Surgery
Anaesthesia
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,259
2,109
0.934
* Total Citation Counts Rankings
Ranking Based On Selection :20
Surgery
Laparoscopy
Outcome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,131
1,054
0.495
* Total Citation Counts Rankings
Ranking Based On Selection :21
Colorectal Cancer Diagnostics & Imaging
Colorectal Surgery
Trauma & Emergency Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,995
1,689
0.847
* Total Citation Counts Rankings
Ranking Based On Selection :22
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,837
1,030
0.561
* Total Citation Counts Rankings
Ranking Based On Selection :23
Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
1,551
0.891
* Total Citation Counts Rankings
Ranking Based On Selection :24
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,646
1,308
0.795
* Total Citation Counts Rankings
Ranking Based On Selection :25
General Surgery
Upper GI Surgery
Bariatric Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,444
812
0.562
* Total Citation Counts Rankings
Rankings
2,341
186
19
Ranking Based On Selection: 1
Ara Darzi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,025
53,657
0.466
* Total Citation Counts Rankings
Rankings
13,349
1,174
91
Ranking Based On Selection: 2
Paris Tekkis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,569
16,798
0.404
Colorectal cancer
Anal Cancer
Inflammatory bowel disease
Diverticular disease
* Total Citation Counts Rankings
Rankings
27,842
2,411
158
Ranking Based On Selection: 3
George B Hanna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,922
15,143
0.584
Surgery
Laparoscopic surgery
oesophago-gastric cancer
volatile organic compounds
* Total Citation Counts Rankings
Rankings
31,910
2,776
187
Ranking Based On Selection: 4
Hutan Ashrafian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,661
16,674
0.705
surgery
obesity
artificial intelligence
philosophy
diabetes
* Total Citation Counts Rankings
Rankings
46,226
4,013
254
Ranking Based On Selection: 5
Sheraz Markar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,118
14,053
0.776
* Total Citation Counts Rankings
Rankings
67,655
5,748
364
Ranking Based On Selection: 6
Sanjay Purkayastha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,611
6,064
0.446
surgery
robotics
digital health
AI & ML in healthcare
obesity
* Total Citation Counts Rankings
Rankings
98,397
8,161
482
Ranking Based On Selection: 7
Oliver Warren
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,987
8,052
0.806
Colorectal Cancer
Colorectal Surgery
Medical leadership and management
hernia and abdominal wall reconstruction
* Total Citation Counts Rankings
Rankings
103,428
8,543
500
Ranking Based On Selection: 8
Dan S Elson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,555
5,889
0.616
Endoscopy
Surgical Imaging
Polarization-resolved Endoscopy
Multispectral Endoscopy
Image-Guided Intervention
* Total Citation Counts Rankings
Rankings
106,125
8,731
512
Ranking Based On Selection: 9
Jia Li
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,342
5,026
0.538
bariatric surgery
microbial function
colon cancer
diet
* Total Citation Counts Rankings
Rankings
124,984
10,149
580
Ranking Based On Selection: 10
Max Johnston
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,078
5,760
0.713
Surgery
Patient Safety
Simulation
Technology
mHealth
* Total Citation Counts Rankings
Rankings
139,143
11,136
628
Ranking Based On Selection: 11
Christos Kontovounisios
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,321
6,859
0.937
Colorectal Cancer
Pelvic exenterative surgery
Robotic Surgery
Pelvic floor disorders
* Total Citation Counts Rankings
Rankings
153,256
12,057
666
Ranking Based On Selection: 12
Madhava Pai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,678
4,466
0.669
HPB Surgery
Liver and Pancreatic Cancer
* Total Citation Counts Rankings
Rankings
154,875
12,186
669
Ranking Based On Selection: 13
Harsimrat Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,612
2,281
0.345
Surgical innovation
Cognitive load assessment
Neural Engineering Brain computer Interfaces
Machine learning Artificial intell
* Total Citation Counts Rankings
Rankings
185,516
14,254
740
Ranking Based On Selection: 14
Shobhit Arya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,523
5,129
0.929
Surgery
General Surgery
Surgical Technology
Medicine
Cancer
* Total Citation Counts Rankings
Rankings
240,301
17,895
907
Ranking Based On Selection: 15
Mansoor Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,209
3,441
0.818
Trauma
Acute Care Surgery
Damage Control Resuscitation
General Surgery
* Total Citation Counts Rankings
Rankings
280,337
20,369
1,022
Ranking Based On Selection: 16
Elaine Burns
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,537
2,068
0.585
Surgical epidemiology
Colorectal Surgery
Surgical Quality
* Total Citation Counts Rankings
Rankings
290,841
20,985
1,058
Ranking Based On Selection: 17
Mátyás Fehérvári
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,389
3,255
0.960
* Total Citation Counts Rankings
Rankings
347,899
24,314
1,198
Ranking Based On Selection: 18
Emma V Carrington
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,729
2,109
0.773
Colorectal surgery
Neurogastroenterology
* Total Citation Counts Rankings
Rankings
402,400
27,329
1,301
Ranking Based On Selection: 19
Azeem Alam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,259
2,109
0.934
Surgery
Anaesthesia
Cancer
* Total Citation Counts Rankings
Rankings
420,102
28,231
1,342
Ranking Based On Selection: 20
Ravikrishna Mamidanna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,131
1,054
0.495
Surgery
Laparoscopy
Outcome
* Total Citation Counts Rankings
Rankings
440,741
29,315
1,386
Ranking Based On Selection: 21
Nigel D Souza
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,995
1,689
0.847
Colorectal Cancer Diagnostics & Imaging
Colorectal Surgery
Trauma & Emergency Surgery
* Total Citation Counts Rankings
Rankings
467,260
30,663
1,460
Ranking Based On Selection: 22
Alex Almoudaris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,837
1,030
0.561
* Total Citation Counts Rankings
Rankings
484,764
31,539
1,488
Ranking Based On Selection: 23
Ankur Khajuria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
1,551
0.891
* Total Citation Counts Rankings
Rankings
503,447
32,564
1,528
Ranking Based On Selection: 24
Christoph Kittl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,646
1,308
0.795
* Total Citation Counts Rankings
Rankings
547,846
34,803
1,601
Ranking Based On Selection: 25
Myutan Kulendran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,444
812
0.562
General Surgery
Upper GI Surgery
Bariatric Surgery