John Karani

5.0k total citations · 1 hit paper
46 papers, 2.7k citations indexed

About

John Karani is a scholar working on Surgery, Hepatology and Epidemiology. According to data from OpenAlex, John Karani has authored 46 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Surgery, 25 papers in Hepatology and 12 papers in Epidemiology. Recurrent topics in John Karani's work include Liver Disease and Transplantation (18 papers), Organ Transplantation Techniques and Outcomes (17 papers) and Liver Disease Diagnosis and Treatment (10 papers). John Karani is often cited by papers focused on Liver Disease and Transplantation (18 papers), Organ Transplantation Techniques and Outcomes (17 papers) and Liver Disease Diagnosis and Treatment (10 papers). John Karani collaborates with scholars based in United Kingdom, United States and Belgium. John Karani's co-authors include Nigel Heaton, Bernard Portmann, Alberto Quaglia, J. Mark Farrant, Roger Williams, David Westaby, Karen M. Hayllar, Mark Wilkinson, Andrew V. Thillainayagam and Harpreet Wasan and has published in prestigious journals such as Journal of Clinical Oncology, The Journal of Immunology and Gastroenterology.

In The Last Decade

John Karani

46 papers receiving 2.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Guidelines for the diagnosis and treatment of cholangiocarcinoma: an update

2012 597 citations Shahid A. Khan, Brian R Davidson et al. Gut profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Karani United Kingdom	25	1.8k	1.3k	693	628	425	46	2.7k
Jean-Bernard Otté Belgium	34	2.3k 1.3×	1.8k 1.3×	716 1.0×	596 0.9×	629 1.5×	113	3.5k
Jaume Torras Spain	22	1.1k 0.6×	1.2k 0.9×	350 0.5×	491 0.8×	475 1.1×	88	1.9k
Randall G. Lee United States	24	1.3k 0.7×	660 0.5×	572 0.8×	919 1.5×	380 0.9×	41	2.6k
Catherine Buffet France	24	1.2k 0.6×	1.5k 1.1×	823 1.2×	1.5k 2.3×	528 1.2×	76	3.1k
Juan R. Madariaga United States	27	1.9k 1.0×	1.3k 1.0×	663 1.0×	403 0.6×	742 1.7×	44	2.6k
Takashi Nishizaki Japan	23	1.5k 0.8×	1.1k 0.9×	1.5k 2.1×	540 0.9×	1.0k 2.5×	85	3.3k
Shugo Mizuno Japan	24	1.7k 0.9×	1.1k 0.8×	614 0.9×	834 1.3×	1.3k 3.2×	187	2.8k
Itxarone Bilbao Spain	24	1.4k 0.8×	1.5k 1.1×	264 0.4×	775 1.2×	227 0.5×	123	2.5k
Nobuhiko Taniai Japan	23	1.3k 0.7×	1.2k 0.9×	362 0.5×	796 1.3×	378 0.9×	204	2.1k
Werner Van Steenbergen Belgium	25	1.1k 0.6×	927 0.7×	604 0.9×	591 0.9×	480 1.1×	65	2.0k

Countries citing papers authored by John Karani

Since Specialization

Citations

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

Fields of papers citing papers by John Karani

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Karani

This figure shows the co-authorship network connecting the top 25 collaborators of John Karani. A scholar is included among the top collaborators of John Karani 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 John Karani. John Karani is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Zabron, Abigail, Alberto Quaglia, Evangelia Fatourou, et al.. (2018). Clinical and prognostic associations of liver volume determined by computed tomography in acute liver failure. Liver International. 38(9). 1592–1601. 24 indexed citations

Suddle, Abid, Alberto Quaglia, Praveen Peddu, et al.. (2015). Congenital extrahepatic portosystemic shunt complicated by the development of hepatocellular carcinoma. Hepatobiliary & pancreatic diseases international. 14(5). 552–557. 35 indexed citations

Khan, Shahid A., Brian R Davidson, Robert Goldin, et al.. (2012). Guidelines for the diagnosis and treatment of cholangiocarcinoma: an update. Gut. 61(12). 1657–1669. 597 indexed citations breakdown →

Zen, Yoh, Ragai R. Mitry, Denis Corbeil, et al.. (2011). Mixed phenotype hepatocellular carcinoma after transarterial chemoembolization and liver transplantation. Liver Transplantation. 17(8). 943–954. 79 indexed citations

Marriott, Paul, John Karani, Sebastian Lucas, Peter L. Chiodini, & Nigel Heaton. (2010). Anaphylaxis from intravascular rupture of Hydatid disease following liver trauma. Journal of Surgical Case Reports. 2010(7). 1–1. 10 indexed citations

Berry, Philip, Timothy Cross, Swee Lay Thein, et al.. (2007). Hepatic Dysfunction in Sickle Cell Disease: A New System of Classification Based on Global Assessment. Clinical Gastroenterology and Hepatology. 5(12). 1469–1476. 53 indexed citations

Castagnetti, Marco, Shailendra B. Patel, John Devlin, et al.. (2006). Minimally invasive management of bile leaks after blunt liver trauma in children. Journal of Pediatric Surgery. 41(9). 1539–1544. 28 indexed citations

Shneider, Benjamin L., Sukru Emre, Roberto J. Groszmann, et al.. (2006). Expert pediatric opinion on the Report of the Baveno IV Consensus Workshop on Methodology of Diagnosis and Therapy in Portal Hypertension. Pediatric Transplantation. 10(8). 893–907. 57 indexed citations

Orr, David, Phillip Harrison, John Devlin, et al.. (2006). Chronic Mesenteric Venous Thrombosis: Evaluation and Determinants of Survival During Long-Term Follow-up. Clinical Gastroenterology and Hepatology. 5(1). 80–86. 61 indexed citations

10.

Karani, John, Dominic Yu, & Pauline A. Kane. (2005). Interventional Radiology in Liver Transplantation. CardioVascular and Interventional Radiology. 28(3). 271–283. 11 indexed citations

11.

Um, Soon Ho, Akeel Alisa, Annette Ives, et al.. (2004). α-Fetoprotein Impairs APC Function and Induces Their Apoptosis. The Journal of Immunology. 173(3). 1772–1778. 92 indexed citations

12.

Sidhu, Paul S., Ashley Shaw, John Karani, Suzanne Ryan, & Stephen Ellis. (2004). Microbubble ultrasound contrast in the assessment of hepatic artery patency following liver transplantation: role in reducing frequency of hepatic artery arteriography. European Radiology. 14(1). 21–30. 54 indexed citations

13.

Williams, R.S., et al.. (2003). Adult-to-adult living donor liver transplant. European Journal of Gastroenterology & Hepatology. 15(1). 7–14. 37 indexed citations

14.

Muiesan, Paolo, Parthi Srinivasan, Pauline A. Kane, et al.. (2001). Hepatic Artery Pseudoaneurysms Following Liver Transplantation: Incidence, Presenting Features and Management. Clinical Radiology. 56(7). 579–587. 102 indexed citations

15.

Rela, Mohamed, John McCall, John Karani, & Nigel Heaton. (1998). ACCESSORY RIGHT HEPATIC ARTERY ARISING FROM THE LEFT. Transplantation. 66(6). 792–794. 15 indexed citations

16.

Rela, Mohamed, V. Vougas, Paolo Muiesan, et al.. (1998). Split Liver Transplantation. Annals of Surgery. 227(2). 282–288. 135 indexed citations

17.

Heaton, Nigel, Mark Davenport, John Karani, Alex P. Mowat, & E R Howard. (1995). Congenital hepatoportal arteriovenous fistula. Surgery. 117(2). 170–174. 32 indexed citations

18.

Rizzi, P M, Pauline A. Kane, Stephen Ryder, et al.. (1994). Accuracy of radiology in detection of hepatocellular carcinoma before liver transplantation. Gastroenterology. 107(5). 1425–1429. 58 indexed citations

19.

Karani, John, N Heaton, Stephen H. Thomas, et al.. (1994). THE USE OF PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY IN HEPATIC ARTERY STENOSIS AFTER TRANSPLANTATION. Transplantation. 57(2). 228–230. 45 indexed citations

20.

Farrant, J. Mark, Karen M. Hayllar, Mark Wilkinson, et al.. (1991). Natural history and prognostic variables in primary sclerosing cholangitis. Gastroenterology. 100(6). 1710–1717. 357 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.

Explore authors with similar magnitude of impact