Manu Nayar

2.2k total citations · 1 hit paper
66 papers, 1.3k citations indexed

About

Manu Nayar is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Manu Nayar has authored 66 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Surgery, 37 papers in Oncology and 27 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Manu Nayar's work include Pancreatic and Hepatic Oncology Research (35 papers), Pancreatitis Pathology and Treatment (33 papers) and Gallbladder and Bile Duct Disorders (16 papers). Manu Nayar is often cited by papers focused on Pancreatic and Hepatic Oncology Research (35 papers), Pancreatitis Pathology and Treatment (33 papers) and Gallbladder and Bile Duct Disorders (16 papers). Manu Nayar collaborates with scholars based in United Kingdom, New Zealand and Italy. Manu Nayar's co-authors include Jonathan M. Rhodes, Helen Martin, Hans Englyst, Ravinder Singh, Barry J. Campbell, C. Anthony Hart, Chiedzo Mpofu, Kofi Oppong, John Leeds and Richard Charnley and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Gut.

In The Last Decade

Manu Nayar

60 papers receiving 1.3k 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.

Enhanced Escherichia coli adherence and invasion in Crohn’s disease and colon cancer 1 1The authors thank Professor T. K. Korhonen (Division of General Microbiology, University of Helsinki, Finland), who kindly donated Escherichia coli IH11165; Professor J.-F. Colombel (Laboratoire de Recherche sur les Maladies Inflammatoire de l’Intestine, Centre Hospitalier Universitaire, Lille, France) and Professor A. Darfeuille-Michaud (Faculte de Pharmacie, Clermont-Ferrand, France), who kindly donated the Crohn’s disease ileal isolates LF10 and LF82; and Dr. Keith Leiper (Gastroenterology Unit, Royal Liverpool & Broadgreen University Hospitals Trust, Liverpool, UK) for his cooperation in obtaining colorectal tissue specimens.As a consequence of the work described herein, a patent application has been filed by the University of Liverpool regarding the use of soluble plantain fiber in Crohn’s disease.

2004 575 citations Helen Martin, Barry J. Campbell et al. Gastroenterology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Manu Nayar United Kingdom	18	606	483	392	340	242	66	1.3k
ATR Axon United Kingdom	5	324 0.5×	422 0.9×	496 1.3×	366 1.1×	146 0.6×	9	1.4k
Tomoyoshi Shibuya Japan	19	558 0.9×	275 0.6×	448 1.1×	687 2.0×	292 1.2×	131	1.7k
Julia Butt Germany	20	381 0.6×	295 0.6×	250 0.6×	161 0.5×	221 0.9×	74	1.1k
Federica Gaiani Italy	18	551 0.9×	290 0.6×	278 0.7×	233 0.7×	110 0.5×	61	1.2k
H. C. Rutgers United Kingdom	20	239 0.4×	92 0.2×	194 0.5×	232 0.7×	196 0.8×	33	1.1k
Gideon Almogy Israel	9	263 0.4×	250 0.5×	519 1.3×	126 0.4×	91 0.4×	11	943
Maria Mylonaki United Kingdom	8	512 0.8×	60 0.1×	236 0.6×	141 0.4×	222 0.9×	16	1.0k
Lars Helgeland Norway	20	174 0.3×	135 0.3×	238 0.6×	97 0.3×	81 0.3×	46	1.0k
Emma K. Persson Sweden	14	190 0.3×	180 0.4×	355 0.9×	93 0.3×	180 0.7×	18	2.0k
Manuel Álvarez-Lobos Chile	15	194 0.3×	81 0.2×	292 0.7×	73 0.2×	281 1.2×	41	893

Countries citing papers authored by Manu Nayar

Since Specialization

Citations

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

Fields of papers citing papers by Manu Nayar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Manu Nayar

This figure shows the co-authorship network connecting the top 25 collaborators of Manu Nayar. A scholar is included among the top collaborators of Manu Nayar 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 Manu Nayar. Manu Nayar 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

Lucocq, James, et al.. (2025). A 10-year (2013–2023) analysis of incidence, etiology and mortality of acute pancreatitis in England. HPB. 27(5). 723–731. 1 indexed citations

Lucocq, James, Søren Schou Olesen, Wei Huang, et al.. (2024). No definite associations between opioid doses and severity of acute pancreatitis – Results from a multicentre international prospective study. Pancreatology. 25(1). 12–19. 2 indexed citations

Pandanaboyana, Sanjay, Søren Schou Olesen, Michael Jones, et al.. (2024). Opioid analgesia and severity of acute pancreatitis: An international multicentre cohort study on pain management in acute pancreatitis. United European Gastroenterology Journal. 12(3). 326–338. 12 indexed citations

Robertson, Francis P., Bathiya Ratnayake, D. Al-Leswas, et al.. (2023). The development of new onset post-pancreatitis diabetes mellitus during hospitalisation is not associated with adverse outcomes. HPB. 25(9). 1047–1055. 3 indexed citations

Sidhu, Reena, Hasan Haboubi, John Leeds, et al.. (2023). British Society of Gastroenterology guidelines on sedation in gastrointestinal endoscopy. Gut. 73(2). 1–27. 42 indexed citations

Nylander, David, John Leeds, John D. Perry, et al.. (2023). Bacterial contamination of endoscopist and assistant face visors during gastrointestinal endoscopy: a pilot study. Frontline Gastroenterology. 14(6). 505–511. 1 indexed citations

McDonagh, P. F., et al.. (2023). Endoscopic Ultrasound-Guided Gallbladder Drainage for Malignant Biliary Obstruction: A Systematic Review. Cancers. 15(11). 2988–2988. 5 indexed citations

Varghese, Chris, et al.. (2022). A selective anticoagulation policy for splanchnic vein thrombosis in acute pancreatitis is associated with favourable outcomes: experience from a UK tertiary referral centre. HPB. 24(11). 1937–1943. 9 indexed citations

Psaltis, Emmanouil, Chris Varghese, Sanjay Pandanaboyana, & Manu Nayar. (2022). Quality of life after surgical and endoscopic management of severe acute pancreatitis: A systematic review. World Journal of Gastrointestinal Endoscopy. 14(7). 443–454. 7 indexed citations

10.

Vanbiervliet, Geoffroy, Marin Strijker, Marianna Arvanitakis, et al.. (2021). Endoscopic management of ampullary tumors: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 53(4). 429–448. 60 indexed citations

11.

Vanbiervliet, Geoffroy, Alan Moss, Marianna Arvanitakis, et al.. (2021). Endoscopic management of superficial nonampullary duodenal tumors: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 53(5). 522–534. 54 indexed citations

12.

Paranandi, Bharat, Andrew M. Smith, Martin W. James, et al.. (2021). EUS-guided choledochoduodenostomy with electrocautery-enhanced lumen-apposing metal stents in patients with malignant distal biliary obstruction: multicenter collaboration from the United Kingdom and Ireland. Gastrointestinal Endoscopy. 95(3). 432–442. 31 indexed citations

13.

Ratnayake, Bathiya, Sivesh K. Kamarajah, Benjamin Loveday, et al.. (2020). A Network Meta-analysis of Surgery for Chronic Pancreatitis: Impact on Pain and Quality of Life. Journal of Gastrointestinal Surgery. 24(12). 2865–2873. 7 indexed citations

14.

King, Dominic, Prashant Patel, John Leeds, et al.. (2019). OTU-03 Pancreaticobiliary endoscopic ultrasound in england 2007–2017: changing practice, benefits and harms. Endoscopy. A1.3–A2. 1 indexed citations

15.

Nayar, Manu, et al.. (2017). Robot Pancreatic Resection for a Mature Cystic Teratoma of the Pancreas - A Case Report and Review of Literature. JOP, journal of the pancreas. 18(2).

16.

Oppong, Kofi, Muhammad F. Dawwas, Richard Charnley, et al.. (2015). EUS and EUS–FNA diagnosis of suspected pancreatic cystic neoplasms: Is the sum of the parts greater than the CEA?. Pancreatology. 15(5). 531–537. 30 indexed citations

17.

Nayar, Manu, et al.. (2012). OC-112 Utility of cyst fluid amylase in the differentiation of suspected pancreatic neoplastic cysts. Gut. 61(Suppl 2). A49.1–A49.

18.

Ibrahim, Badr, et al.. (2011). Endoscopic ultrasound-guided gastroenterostomy for palliative drainage of an obstructed hepaticojejunostomy loop. Endoscopy. 43(S 02). E1–E2. 3 indexed citations

19.

Nayar, Manu, Ian Gilmore, Howard Smart, et al.. (2005). Transjugular intrahepatic portosystemic stent shunt: 11 years?? experience at a regional referral centre. European Journal of Gastroenterology & Hepatology. 17(11). 1165–1171. 7 indexed citations

20.

Martin, Helen, Barry J. Campbell, C. Anthony Hart, et al.. (2004). Enhanced Escherichia coli adherence and invasion in Crohn’s disease and colon cancer 1 1The authors thank Professor T. K. Korhonen (Division of General Microbiology, University of Helsinki, Finland), who kindly donated Escherichia coli IH11165; Professor J.-F. Colombel (Laboratoire de Recherche sur les Maladies Inflammatoire de l’Intestine, Centre Hospitalier Universitaire, Lille, France) and Professor A. Darfeuille-Michaud (Faculte de Pharmacie, Clermont-Ferrand, France), who kindly donated the Crohn’s disease ileal isolates LF10 and LF82; and Dr. Keith Leiper (Gastroenterology Unit, Royal Liverpool & Broadgreen University Hospitals Trust, Liverpool, UK) for his cooperation in obtaining colorectal tissue specimens.As a consequence of the work described herein, a patent application has been filed by the University of Liverpool regarding the use of soluble plantain fiber in Crohn’s disease.. Gastroenterology. 127(1). 80–93. 575 indexed citations breakdown →

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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