Ryan J. Ellis

2.8k total citations · 1 hit paper
64 papers, 1.8k citations indexed

About

Ryan J. Ellis is a scholar working on Surgery, General Health Professions and Oncology. According to data from OpenAlex, Ryan J. Ellis has authored 64 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Surgery, 17 papers in General Health Professions and 16 papers in Oncology. Recurrent topics in Ryan J. Ellis's work include Pancreatic and Hepatic Oncology Research (14 papers), Healthcare professionals’ stress and burnout (14 papers) and Diversity and Career in Medicine (11 papers). Ryan J. Ellis is often cited by papers focused on Pancreatic and Hepatic Oncology Research (14 papers), Healthcare professionals’ stress and burnout (14 papers) and Diversity and Career in Medicine (11 papers). Ryan J. Ellis collaborates with scholars based in United States, United Kingdom and Australia. Ryan J. Ellis's co-authors include Karl Y. Bilimoria, D. Brock Hewitt, Yue-Yung Hu, Elaine O. Cheung, David B. Hoyt, Anthony D. Yang, Jo Buyske, Judith T. Moskowitz, Thomas J. Nasca and John R. Potts and has published in prestigious journals such as New England Journal of Medicine, JAMA and The Journal of Clinical Endocrinology & Metabolism.

In The Last Decade

Ryan J. Ellis

62 papers receiving 1.8k 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.

Discrimination, Abuse, Harassment, and Burnout in Surgical Residency Training

2019 578 citations Yue-Yung Hu, Ryan J. Ellis et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryan J. Ellis United States	21	771	651	595	359	232	64	1.8k
Roy Phitayakorn United States	24	382 0.5×	301 0.5×	618 1.0×	981 2.7×	303 1.3×	125	2.2k
Steven J. Buskirk United States	31	268 0.3×	927 1.4×	611 1.0×	752 2.1×	576 2.5×	105	3.4k
Ronan W. Glynn Ireland	21	114 0.1×	212 0.3×	240 0.4×	307 0.9×	323 1.4×	44	1.6k
Jennifer F. Waljee United States	32	337 0.4×	466 0.7×	600 1.0×	2.0k 5.6×	518 2.2×	108	3.5k
Francesco Esperto Italy	23	220 0.3×	384 0.6×	274 0.5×	1.0k 2.9×	721 3.1×	152	2.5k
David Song United States	29	161 0.2×	355 0.5×	263 0.4×	2.5k 7.0×	382 1.6×	145	3.4k
Cynthia D. Smith United States	26	88 0.1×	644 1.0×	652 1.1×	259 0.7×	188 0.8×	51	2.3k
Malke Asaad United States	23	332 0.4×	145 0.2×	382 0.6×	638 1.8×	253 1.1×	129	1.7k
Kemi M. Doll United States	23	71 0.1×	176 0.3×	264 0.4×	285 0.8×	455 2.0×	101	1.8k
Carlo Trombetta Italy	22	93 0.1×	293 0.5×	357 0.6×	737 2.1×	541 2.3×	198	2.3k

Countries citing papers authored by Ryan J. Ellis

Since Specialization

Citations

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

Fields of papers citing papers by Ryan J. Ellis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan J. Ellis. 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 Ryan J. Ellis. The network helps show where Ryan J. Ellis may publish in the future.

Co-authorship network of co-authors of Ryan J. Ellis

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan J. Ellis. A scholar is included among the top collaborators of Ryan J. Ellis 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 Ryan J. Ellis. Ryan J. Ellis 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

Maatman, Thomas K., Ryan J. Ellis, Michael G. House, et al.. (2025). High extraction site hernia rate after laparoscopic distal pancreatectomy - another bridge to cross. HPB. 27. S70–S71. 1 indexed citations

Brajcich, Brian C., Clifford Y. Ko, Jason B. Liu, Ryan J. Ellis, & Michael I. D’Angelica. (2024). A NSQIP-Based Randomized Clinical Trial Evaluating Choice of Prophylactic Antibiotics for Pancreaticoduodenectomy. Cancer treatment and research. 192. 131–145. 1 indexed citations

Ellis, Ryan J., T. Peter Kingham, Kevin C. Soares, et al.. (2024). Has Management of Intrahepatic Cholangiocarcinoma Evolved with the Evidence? Trends and Practice Patterns from the National Cancer Database. Annals of Surgical Oncology. 31(10). 6551–6563. 1 indexed citations

Ellis, Ryan J., Kevin C. Soares, & William R. Jarnagin. (2022). Preoperative Management of Perihilar Cholangiocarcinoma. Cancers. 14(9). 2119–2119. 7 indexed citations

Ellis, Ryan J., Joe Feinglass, Amy L. Halverson, et al.. (2022). Association of travel distance, surgical volume, and receipt of adjuvant chemotherapy with survival among patients with resectable lung cancer. JTCVS Open. 13. 357–378. 9 indexed citations

Brajcich, Brian C., Ryan J. Ellis, Clifford Y. Ko, et al.. (2021). Cefoxitin versus piperacillin–tazobactam as surgical antibiotic prophylaxis in patients undergoing pancreatoduodenectomy: protocol for a randomised controlled trial. BMJ Open. 11(3). e048398–e048398. 6 indexed citations

Schlick, Cary Jo R., Ryan J. Ellis, Ryan P. Merkow, Anthony D. Yang, & David J. Bentrem. (2020). Development and validation of a risk calculator for post-discharge venous thromboembolism following hepatectomy for malignancy. HPB. 23(5). 723–732. 8 indexed citations

Brajcich, Brian C., David J. Bentrem, Anthony D. Yang, et al.. (2020). Short-Term Risk of Performing Concurrent Procedures with Hepatic Artery Infusion Pump Placement. Annals of Surgical Oncology. 27(13). 5098–5106. 9 indexed citations

Liu, Jessica, Ryan J. Ellis, Mark E. Cohen, et al.. (2020). Post Hepatectomy Liver Failure Risk Calculator for Preoperative and Early Postoperative Period Following Major Hepatectomy. Annals of Surgical Oncology. 27(8). 2868–2876. 26 indexed citations

10.

Ellis, Ryan J., et al.. (2020). Impact of hybrid supervision approaches on the performance of artificial intelligence for the classification of chest radiographs. Computers in Biology and Medicine. 120. 103699–103699. 8 indexed citations

11.

Ellis, Ryan J., Peter Angelos, William R. Jarnagin, Nancy E. Kemeny, & Ryan P. Merkow. (2019). Abrupt Discontinuation of the Codman Hepatic Artery Infusion Pump: Considerations in the Era of Precision Medicine. Journal of the American College of Surgeons. 229(2). 217–219. 6 indexed citations

12.

Ellis, Ryan J., Amy L. Holmstrom, D. Brock Hewitt, et al.. (2019). A comprehensive national survey on thoughts of leaving residency, alternative career paths, and reasons for staying in general surgery training. The American Journal of Surgery. 219(2). 227–232. 16 indexed citations

13.

Ellis, Ryan J., Cary Jo R. Schlick, Anthony D. Yang, et al.. (2019). Utilization and Treatment Patterns of Cytoreduction Surgery and Intraperitoneal Chemotherapy in the United States. Annals of Surgical Oncology. 27(1). 214–221. 8 indexed citations

14.

Ellis, Ryan J., Dhaval Patel, & Tamara Prodanov. (2014). The Presence of SDHB Mutations Should Modify Surgical Indications for Carotid Body Paragangliomas. Journal of Vascular Surgery. 60(3). 805–805. 2 indexed citations

15.

Sadowski, Samira M., Allison B. Weisbrod, Ryan J. Ellis, et al.. (2014). Prospective Evaluation of the Clinical Utility of 18-Fluorodeoxyglucose PET CT Scanning in Patients with Von Hippel-Lindau–Associated Pancreatic Lesions. Journal of the American College of Surgeons. 218(5). 997–1003. 12 indexed citations

16.

Patel, Dhaval, Ryan J. Ellis, Myriem Boufraqech, et al.. (2014). Analysis of IGF and IGFBP as Prognostic Serum Biomarkers for Adrenocortical Carcinoma. Annals of Surgical Oncology. 21(11). 3541–3547. 9 indexed citations

17.

Mehta, Amit, Dhaval Patel, Avi Z. Rosenberg, et al.. (2014). Hyperparathyroidism-jaw tumor syndrome: Results of operative management. Surgery. 156(6). 1315–1325. 58 indexed citations

18.

Yao, Min, et al.. (2012). SU‐E‐J‐87: Building Deformation Error Histogram and Quality Assurance of Deformable Image Registration. Medical Physics. 39(6Part7). 3672–3672. 2 indexed citations

19.

Singh, Milind, et al.. (2008). Microsphere-Based Seamless Scaffolds Containing Macroscopic Gradients of Encapsulated Factors for Tissue Engineering. Tissue Engineering Part C Methods. 14(4). 299–309. 89 indexed citations

20.

Culverhouse, Phil, Ryan J. Ellis, R. Williams, et al.. (2002). Dinoflagellate categorization by artificial neural network.. ArTS Archivio della ricerca di Trieste (University of Trieste https://www.units.it/). 43. 39–46. 7 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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