Chris Callaghan

3.8k total citations · 1 hit paper
104 papers, 2.4k citations indexed

About

Chris Callaghan is a scholar working on Surgery, Transplantation and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Chris Callaghan has authored 104 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Surgery, 46 papers in Transplantation and 43 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Chris Callaghan's work include Organ Transplantation Techniques and Outcomes (49 papers), Renal Transplantation Outcomes and Treatments (45 papers) and Organ Donation and Transplantation (40 papers). Chris Callaghan is often cited by papers focused on Organ Transplantation Techniques and Outcomes (49 papers), Renal Transplantation Outcomes and Treatments (45 papers) and Organ Donation and Transplantation (40 papers). Chris Callaghan collaborates with scholars based in United Kingdom, United States and Canada. Chris Callaghan's co-authors include Eric Lim, Gavin J. Pettigrew, J. Andrew Bradley, Kourosh Saeb‐Parsy, Michael E. Gaunt, Ziad A. Ali, K. Varty, S.A.R. Nouraei, David P. Dutka and Ayyaz Ali and has published in prestigious journals such as The Lancet, Circulation and Nature Medicine.

In The Last Decade

Chris Callaghan

94 papers receiving 2.3k 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.

Normothermic machine perfusion versus static cold storage in donation after circulatory death kidney transplantation: a randomized controlled trial

2023 88 citations Sarah A. Hosgood, Chris Callaghan et al. Nature Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Chris Callaghan United Kingdom	28	1.1k	736	658	398	350	104	2.4k
Steven K. Takemoto United States	30	2.6k 2.3×	2.0k 2.8×	1.1k 1.6×	283 0.7×	176 0.5×	62	4.1k
Jacqueline M. Smits Netherlands	30	2.9k 2.5×	1.7k 2.3×	1.6k 2.4×	60 0.2×	701 2.0×	111	3.8k
Christoph Troppmann United States	28	2.1k 1.8×	1.7k 2.2×	1.1k 1.7×	80 0.2×	309 0.9×	128	3.1k
Jason M. Ali United Kingdom	19	504 0.4×	181 0.2×	160 0.2×	48 0.1×	104 0.3×	106	1.2k
Benjamin Samstein United States	33	3.7k 3.2×	609 0.8×	1.4k 2.1×	157 0.4×	3.5k 9.9×	92	4.7k
Prosanto Chaudhury Canada	22	580 0.5×	159 0.2×	137 0.2×	44 0.1×	482 1.4×	85	1.4k
S. Joseph Kim Canada	28	821 0.7×	1.0k 1.4×	549 0.8×	127 0.3×	127 0.4×	118	2.4k
Walter S. Andrews United States	31	1.9k 1.6×	145 0.2×	145 0.2×	60 0.2×	408 1.2×	83	2.8k
Joseph B. Cofer United States	21	1.2k 1.0×	73 0.1×	381 0.6×	68 0.2×	295 0.8×	46	1.8k
Timothy C. Lee United States	34	2.1k 1.8×	98 0.1×	301 0.5×	189 0.5×	251 0.7×	119	3.1k

Countries citing papers authored by Chris Callaghan

Since Specialization

Citations

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

Fields of papers citing papers by Chris Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chris Callaghan

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

All Works

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20 of 20 papers shown

Tingle, Samuel J, John Casey, Martin Drage, et al.. (2024). The impact of time to death in donors after circulatory death on recipient outcome in simultaneous pancreas-kidney transplantation. American Journal of Transplantation. 24(7). 1247–1256. 3 indexed citations

O’Doherty, Maeve, Michael Adams, Frank Kee, et al.. (2024). The Effectiveness and Cost-Effectiveness of the ‘Walk with Me’ Peer-Led Walking Intervention to Increase Physical Activity in Inactive Older Adults: Study Protocol for a Randomised Controlled Trial. SHILAP Revista de lepidopterología. 4(1). 28–40.

Rous, Brian, Matthew Robb, Rachel Hilton, et al.. (2023). Organ Transplants From Deceased Donors With Primary Brain Tumors and Risk of Cancer Transmission. JAMA Surgery. 158(5). 504–504. 7 indexed citations

Tingle, Samuel J, Chris Callaghan, John Casey, et al.. (2023). O004 Impact of normothermic regional perfusion on recipient outcomes after simultaneous pancreas and kidney transplantation – a UK analysis from the NHSBT Pancreas Advisory Group. British journal of surgery. 110(Supplement_3). 2 indexed citations

Hosgood, Sarah A., Chris Callaghan, Colin Wilson, et al.. (2023). Normothermic machine perfusion versus static cold storage in donation after circulatory death kidney transplantation: a randomized controlled trial. Nature Medicine. 29(6). 1511–1519. 88 indexed citations breakdown →

Neuberger, James & Chris Callaghan. (2020). Organ utilization – the next hurdle in transplantation?. Transplant International. 33(12). 1597–1609. 23 indexed citations

Manara, Alex, Lisa Mumford, Chris Callaghan, Rommel Ravanan, & Dale Gardiner. (2020). Donation and transplantation activity in the UK during the COVID-19 lockdown. The Lancet. 396(10249). 465–466. 41 indexed citations

Chandak, Pankaj, Benedict L. Phillips, Emily Thompson, et al.. (2019). Dissemination of a novel organ perfusion technique: ex vivo normothermic perfusion of deceased donor kidneys. Artificial Organs. 43(11). E308–E319. 35 indexed citations

Kostakis, Ioannis D., Theodoros Kassimatis, Valentina Bianchi, et al.. (2019). UK renal transplant outcomes in low and high BMI recipients: the need for a national policy. Journal of Nephrology. 33(2). 371–381. 19 indexed citations

10.

Hosgood, Sarah A., Kourosh Saeb‐Parsy, Colin Wilson, et al.. (2017). Protocol of a randomised controlled, open-label trial of ex vivo normothermic perfusion versus static cold storage in donation after circulatory death renal transplantation. BMJ Open. 7(1). e012237–e012237. 107 indexed citations

11.

Morton, A. J., Chris Callaghan, & Jonathon Olsburgh. (2017). Reconstruction of a Damaged Lower Polar Artery for Kidney Transplantation Using Tubularised Donor Aorta. SHILAP Revista de lepidopterología. 2017. 1–4. 3 indexed citations

12.

Chandak, Pankaj, Nicos Kessaris, Chris Callaghan, et al.. (2017). Insights in Transplanting Complex Pediatric Renal Recipients With Vascular Anomalies. Transplantation. 101(10). 2562–2570. 3 indexed citations

13.

Phillips, Benedict L. & Chris Callaghan. (2017). Graft nephrectomy in children. Pediatric Nephrology. 33(6). 947–955. 5 indexed citations

14.

Phillips, Benedict L. & Chris Callaghan. (2017). The immunology of organ transplantation. Surgery (Oxford). 35(7). 333–340. 8 indexed citations

15.

Mittal, Shruti, Pratik Choudhary, Chris Callaghan, Rachel Hilton, & Martin Drage. (2016). First case of pancreas transplant alone in a patient with diabetes and HIV infection. International Journal of STD & AIDS. 27(14). 1350–1353. 3 indexed citations

16.

Chandak, Pankaj & Chris Callaghan. (2014). The immunology of organ transplantation. Surgery (Oxford). 32(7). 325–332. 1 indexed citations

17.

Callaghan, Chris, Susan C. Charman, Paolo Muiesan, et al.. (2013). Outcomes of transplantation of livers from donation after circulatory death donors in the UK: a cohort study. BMJ Open. 3(9). e003287–e003287. 96 indexed citations

18.

Sivaprakasam, Rajesh, et al.. (2011). Operative salvage of radiocephalic arteriovenous fistulas by formation of a proximal neoanastomosis. International Journal of Surgery. 9(7). 531–531.

19.

Ali, Ziad A., Chris Callaghan, Eric Lim, et al.. (2007). Remote Ischemic Preconditioning Reduces Myocardial and Renal Injury After Elective Abdominal Aortic Aneurysm Repair. Circulation. 116(11_supplement). I98–105. 331 indexed citations

20.

Ali, Ziad A., Chris Callaghan, Ahmad Y. Sheikh, et al.. (2007). Perioperative Myocardial Injury after Elective Open Abdominal Aortic Aneurysm Repair Predicts Outcome. European Journal of Vascular and Endovascular Surgery. 35(4). 413–419. 34 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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