Umar Hayat

1.0k total citations
55 papers, 638 citations indexed

About

Umar Hayat is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Umar Hayat has authored 55 papers receiving a total of 638 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Surgery, 16 papers in Oncology and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Umar Hayat's work include Pancreatic and Hepatic Oncology Research (11 papers), Pancreatitis Pathology and Treatment (10 papers) and Gastroesophageal reflux and treatments (8 papers). Umar Hayat is often cited by papers focused on Pancreatic and Hepatic Oncology Research (11 papers), Pancreatitis Pathology and Treatment (10 papers) and Gastroesophageal reflux and treatments (8 papers). Umar Hayat collaborates with scholars based in United States, Pakistan and United Kingdom. Umar Hayat's co-authors include Shuxin Li, Yosuke Ohtake, Rocío López, Mohannad Dugum, Hayrettin Okut, Ali A. Siddiqui, John J. Vargo, Maged Rizk, Scott Gabbard and Madhusudhan R. Sanaka and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and The American Journal of Medicine.

In The Last Decade

Umar Hayat

47 papers receiving 627 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Umar Hayat United States 16 246 158 130 124 100 55 638
Mayur Garg Australia 14 147 0.6× 112 0.7× 96 0.7× 246 2.0× 65 0.7× 46 866
Apostolis Papaefthymiou Greece 14 402 1.6× 118 0.7× 161 1.2× 163 1.3× 155 1.6× 102 728
Chung Hyun Tae South Korea 15 282 1.1× 212 1.3× 122 0.9× 95 0.8× 187 1.9× 73 659
Myong Ki Baeg South Korea 12 277 1.1× 184 1.2× 58 0.4× 100 0.8× 112 1.1× 47 467
Raffaele Pellegrino Italy 15 137 0.6× 72 0.5× 58 0.4× 121 1.0× 90 0.9× 47 556
Yusuf Kayar Türkiye 11 192 0.8× 84 0.5× 73 0.6× 187 1.5× 35 0.3× 72 515
Milica Stojković Lalošević Serbia 11 173 0.7× 60 0.4× 181 1.4× 174 1.4× 47 0.5× 32 578
Sunil Dacha United States 14 467 1.9× 390 2.5× 66 0.5× 49 0.4× 148 1.5× 42 687
Po‐Chu Lee Taiwan 15 381 1.5× 88 0.6× 105 0.8× 121 1.0× 314 3.1× 61 845
Paolo Borro Italy 17 386 1.6× 153 1.0× 44 0.3× 805 6.5× 62 0.6× 42 1.2k

Countries citing papers authored by Umar Hayat

Since Specialization
Citations

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

Fields of papers citing papers by Umar Hayat

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Umar Hayat

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

All Works

20 of 20 papers shown
1.
Fatima, Arooj, et al.. (2025). Understanding Psychological Distress and Body Image Disturbances among Breast Cancer Survivors: A Role of Surgery. Bulletin of Business and Economics (BBE). 14(1). 1–5.
2.
Hayat, Umar, et al.. (2025). Current and Emerging Treatment Options for Pancreatic Cancer: A Comprehensive Review. Journal of Clinical Medicine. 14(4). 1129–1129. 11 indexed citations
3.
Dahiya, Dushyant Singh, Manesh Kumar Gangwani, Fouad Jaber, et al.. (2025). Understanding Role of Nutrition in Inflammatory Bowel Disease: A Comprehensive Review With Incorporation of AGA Update. Journal of Gastroenterology and Hepatology. 40(6). 1352–1363. 1 indexed citations
4.
Ali, Hassam, et al.. (2025). Obesity Related Mortality in the Next Generation: Projections Based on Machine Learning for Young Americans (1999–2035). Obesity Science & Practice. 11(2). 2 indexed citations
5.
Hayat, Umar, et al.. (2024). Combined antegrade and retrograde dilation (CARD) for management of complete esophageal obstruction: Multicenter case series. SHILAP Revista de lepidopterología. 12(10). E1199–E1205.
6.
7.
Saeed, Aamir, Umar Hayat, Muhammad Ali Khan, et al.. (2024). Role of Proton Pump Inhibitors in Prevention of Upper Gastrointestinal Bleeding in Patients on Dual Antiplatelet Therapy: Systematic Review and Meta-Analysis. American Journal of Therapeutics. 32(3). e256–e261. 1 indexed citations
8.
Ali, Hassam, Dushyant Singh Dahiya, Manesh Kumar Gangwani, et al.. (2024). Forecasting Alcohol‐Related Liver Disease Mortality Trends in Younger Populations Using Advanced Time‐Series Models: A 1999–2030 Analysis. JGH Open. 8(12). e70057–e70057. 1 indexed citations
9.
10.
Brown, Jeremy R. Glissen, Umar Hayat, Camden Bay, et al.. (2022). Impact of second-generation transoral incisionless fundoplication on atypical GERD symptoms: a systematic review and meta-analysis. Gastrointestinal Endoscopy. 97(3). 394–406.e2. 12 indexed citations
11.
Hayat, Umar, et al.. (2022). H63D Homozygous Mutation: An Unusual Cause of Deranged Liver Function Test in an Elderly Patient. Cureus. 14(11). e31840–e31840.
12.
Hayat, Umar, Muhammad Ashfaq, Luke Johnson, et al.. (2022). The Association of Metabolic-associated Fatty Liver Disease with Clinical Outcomes of COVID-19: A Systematic Review and Meta-Analysis. Kansas Journal of Medicine. 15(2). 241–246. 15 indexed citations
13.
Makker, Jasbir, Hassan Tariq, Vivien Leung, et al.. (2021). Prevalence of advanced liver fibrosis and steatosis in type-2 diabetics with normal transaminases: A prospective cohort study. World Journal of Gastroenterology. 27(6). 523–533. 8 indexed citations
14.
Klapman, Jason, Tolga Erim, Robert S. Butler, et al.. (2021). Impact of margin status on outcomes after endoscopic resection of well-differentiated duodenal neuroendocrine tumors. Gastrointestinal Endoscopy. 94(3). 580–588. 9 indexed citations
15.
16.
Sanaka, Madhusudhan R., Umar Hayat, Prashanthi N. Thota, et al.. (2016). Efficacy of peroral endoscopic myotomyvsother achalasia treatments in improving esophageal function. World Journal of Gastroenterology. 22(20). 4918–4918. 37 indexed citations
17.
Hayat, Umar, et al.. (2016). Online Educational Video Improves Bowel Preparation and Reduces the Need for Repeat Colonoscopy Within Three Years. The American Journal of Medicine. 129(11). 1219.e1–1219.e9. 36 indexed citations
18.
Li, Shuxin, Yosuke Ohtake, & Umar Hayat. (2015). PTEN inhibition and axon regeneration and neural repair. SHILAP Revista de lepidopterología. 10(9). 1363–1363. 67 indexed citations
19.
Shahid, Haroon, David E. Loren, Thomas E. Kowalski, et al.. (2015). High risk of acute pancreatitis after endoscopic ultrasound-guided fine needle aspiration of side branch intraductal papillary mucinous neoplasms. Endoscopic Ultrasound. 4(2). 109–109. 19 indexed citations
20.
Hayat, Umar, et al.. (2013). Thalassemia and Premarital Screening: Potential for Implementation of a Screening Program Among Young People in Pakistan. Hemoglobin. 37(2). 160–170. 16 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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