Thomas O’Callaghan

528 total citations
19 papers, 317 citations indexed

About

Thomas O’Callaghan is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Emergency Medicine. According to data from OpenAlex, Thomas O’Callaghan has authored 19 papers receiving a total of 317 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 4 papers in Pulmonary and Respiratory Medicine and 4 papers in Emergency Medicine. Recurrent topics in Thomas O’Callaghan's work include Legal Education and Practice Innovations (3 papers), Artificial Intelligence in Law (3 papers) and Emergency and Acute Care Studies (2 papers). Thomas O’Callaghan is often cited by papers focused on Legal Education and Practice Innovations (3 papers), Artificial Intelligence in Law (3 papers) and Emergency and Acute Care Studies (2 papers). Thomas O’Callaghan collaborates with scholars based in United States, Australia and Italy. Thomas O’Callaghan's co-authors include Joseph J. DuBose, Xian Luo‐Owen, Stephen W. Corbett, Samuel Cemaj, Marc D. Trust, Ali Azizzadeh, Jason Pasley, Megan Brenner, Samuel S. Leake and Frank Zhao and has published in prestigious journals such as Critical Care Medicine, Annals of Emergency Medicine and Bulletin of the World Health Organization.

In The Last Decade

Thomas O’Callaghan

16 papers receiving 308 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Thomas O’Callaghan United States 10 183 155 106 26 26 19 317
Labib Syed United Kingdom 6 103 0.6× 50 0.3× 17 0.2× 14 0.5× 21 0.8× 12 208
Bo Seung Kang South Korea 12 93 0.5× 57 0.4× 72 0.7× 86 3.3× 26 1.0× 36 285
Jacinthe Lampron Canada 12 195 1.1× 48 0.3× 225 2.1× 137 5.3× 39 1.5× 39 398
Ibrahim Zabani Saudi Arabia 7 101 0.6× 148 1.0× 36 0.3× 18 0.7× 85 3.3× 13 311
Wilton C. Levine United States 10 133 0.7× 46 0.3× 64 0.6× 16 0.6× 120 4.6× 33 382
Rosalyn P. Scott United States 7 73 0.4× 103 0.7× 38 0.4× 45 1.7× 63 2.4× 14 298
Stephanie D. Talutis United States 10 148 0.8× 34 0.2× 35 0.3× 5 0.2× 49 1.9× 35 227
Carolyn M. Smith United States 12 103 0.6× 52 0.3× 60 0.6× 11 0.4× 37 1.4× 17 301
Melissa Boltz United States 10 192 1.0× 40 0.3× 48 0.5× 13 0.5× 101 3.9× 16 333
Dena Arumugam United States 4 229 1.3× 42 0.3× 198 1.9× 8 0.3× 175 6.7× 7 366

Countries citing papers authored by Thomas O’Callaghan

Since Specialization
Citations

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

Fields of papers citing papers by Thomas O’Callaghan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Thomas O’Callaghan

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

All Works

19 of 19 papers shown
1.
O’Callaghan, Thomas, et al.. (2023). A 66-Year-Old Man with Persistent Altered Mental Status and New Rash. Annals of the American Thoracic Society. 20(3). 466–469.
2.
Jacobson, E S, et al.. (2023). Change in Code Status Orders of Hospitalized Adults With COVID-19 Throughout the Pandemic: A Retrospective Cohort Study. Journal of Palliative Medicine. 26(9). 1188–1197. 2 indexed citations
3.
O’Callaghan, Thomas, et al.. (2021). If Your Heart Were to Stop: Characterization and Comparison of Code Status Orders in Adult Patients Admitted with COVID-19. Journal of Palliative Medicine. 25(6). 888–896. 4 indexed citations
4.
Ali, Jawad, Robert D. Rice, Elizabeth A. David, et al.. (2017). Perforated esophageal intervention focus (PERF) study: a multi-center examination of contemporary treatment. Diseases of the Esophagus. 30(11). 1–8. 14 indexed citations
5.
Fortuna, Gerald R., Joseph J. DuBose, Kenji Inaba, et al.. (2016). Contemporary outcomes of lower extremity vascular repairs extending below the knee. The Journal of Trauma: Injury, Infection, and Critical Care. 81(1). 63–70. 14 indexed citations
6.
DuBose, Joseph J., Samuel S. Leake, Megan Brenner, et al.. (2015). Contemporary management and outcomes of blunt thoracic aortic injury. The Journal of Trauma: Injury, Infection, and Critical Care. 78(2). 360–369. 85 indexed citations
7.
DuBose, Joseph J., Matthew Lissauer, Adrian A. Maung, et al.. (2013). Pneumatosis Intestinalis Predictive Evaluation Study (PIPES). The Journal of Trauma: Injury, Infection, and Critical Care. 75(1). 15–23. 64 indexed citations
8.
Bollinger, Robert C., Larry W. Chang, Thomas O’Callaghan, et al.. (2013). Leveraging information technology to bridge the health workforce gap. Bulletin of the World Health Organization. 91(11). 890–891. 27 indexed citations
9.
O’Callaghan, Thomas, et al.. (2004). MEDICAL STUDENTS ATTITUDES TOWARD TRAUMA PATIENT ENCOUNTERS. Critical Care Medicine. 32(Supplement). A2–A2.
10.
Guldner, Gregory, et al.. (2004). Deferral of the Rectal Examination in Blunt Trauma Patients: A Clinical Decision Rule. Academic Emergency Medicine. 11(6). 635–641. 14 indexed citations
11.
O’Callaghan, Thomas, et al.. (2003). SHYSTER-MYCIN: A Hybrid Legal Expert System. SSRN Electronic Journal. 4 indexed citations
12.
O’Callaghan, Thomas, et al.. (2003). Building and Testing the SHYSTER-MYCIN Hybrid Legal Expert System. SSRN Electronic Journal. 4 indexed citations
13.
O’Callaghan, Thomas, et al.. (2003). SHYSTER-MYCIN. ANU Open Research (Australian National University). 103–103. 7 indexed citations
14.
Johna, Samir, Samuel Cemaj, Thomas O’Callaghan, & Richard D. Catalano. (2002). Effect of tissue injury on D-Dimer levels: a prospective study in trauma patients.. PubMed. 8(1). CR5–8. 24 indexed citations
15.
O’Callaghan, Thomas, et al.. (1998). COMPLIANCE OF SEQUENTIAL COMPRESSION DEVICE FOR DEEP VEIN THROMBOSIS PROPHYLAXIS IN THE ADULT TRAUMA PATIENT. Critical Care Medicine. 26(Supplement). 47A–47A. 5 indexed citations
16.
Corbett, Stephen W. & Thomas O’Callaghan. (1997). Detection of Traumatic Complications of Cardiopulmonary Resuscitation by Ultrasound. Annals of Emergency Medicine. 29(3). 317–322. 23 indexed citations
17.
Cemaj, Samuel, et al.. (1995). Traumatically Injured Jehovah's Witnesses. PubMed. 39(4). 681–685. 15 indexed citations
18.
O’Callaghan, Thomas, et al.. (1990). Clinical Experience With Three‐in‐One Admixtures Administered Peripherally. Nutrition in Clinical Practice. 5(3). 118–122. 10 indexed citations
19.
O’Callaghan, Thomas. (1952). Berechnung von Torsionsschwingungen an Hand der Theorie der Effektiven Massen. Frequenz. 6(9). 1 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

Rankless by CCL
2026