William G. O’Callaghan

654 total citations
16 papers, 506 citations indexed

About

William G. O’Callaghan is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, William G. O’Callaghan has authored 16 papers receiving a total of 506 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Cardiology and Cardiovascular Medicine, 6 papers in Surgery and 1 paper in Pulmonary and Respiratory Medicine. Recurrent topics in William G. O’Callaghan's work include Cardiac Arrhythmias and Treatments (7 papers), Cardiac pacing and defibrillation studies (6 papers) and Atrial Fibrillation Management and Outcomes (5 papers). William G. O’Callaghan is often cited by papers focused on Cardiac Arrhythmias and Treatments (7 papers), Cardiac pacing and defibrillation studies (6 papers) and Atrial Fibrillation Management and Outcomes (5 papers). William G. O’Callaghan collaborates with scholars based in United States and Ireland. William G. O’Callaghan's co-authors include Robert M. Califf, Joseph L. Blackshear, Lawrence D. German, Kenneth A. Ellenbogen, Paul G. Colavita, M. R. Gilbert, Douglas L. Packer, Harry R. Phillips, Charles A. Simonton and Richard S. Stack and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and European Heart Journal.

In The Last Decade

William G. O’Callaghan

14 papers receiving 475 citations

Peers

William G. O’Callaghan

CCM

SURGE

RNMI

PRM

James Holt United States

Alfredo Montero United States

Yuri A. Deychak United States

Maria Trusz‐Gluza Poland

Steven Rohrbeck United States

A McNeill United Kingdom

Mark E. Hands United States

Scott L. Woodfield United States

Raymond J. Gibbons United States

Ghanshyam Palamaner Subash Shantha United States

James Holt United States

William G. O’Callaghan

402 ×0.9

CCM

152 ×0.7

SURGE

240 ×2.0

RNMI

34 ×1.2

PRM

20 ×0.8

Citations per year, relative to William G. O’Callaghan William G. O’Callaghan (= 1×) peers James Holt

Countries citing papers authored by William G. O’Callaghan

Since Specialization

Citations

This map shows the geographic impact of William G. 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 William G. 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 William G. O’Callaghan more than expected).

Fields of papers citing papers by William G. O’Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of William G. O’Callaghan

This figure shows the co-authorship network connecting the top 25 collaborators of William G. O’Callaghan. A scholar is included among the top collaborators of William G. 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 William G. O’Callaghan. William G. O’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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16 of 16 papers shown

O’Callaghan, William G., et al.. (2013). Who Is Responsible for Education in a Community? Implications of Living in the Education Silo. National Civic Review. 102(2). 17–19.

O’Callaghan, William G.. (2004). Think Like Peter Senge: Applying His Laws of Systems Thinking to Identify Patterns That Shape Behavior.. The School Administrator. 61(10). 26.

Packer, Douglas L., Kenneth A. Ellenbogen, Paul G. Colavita, et al.. (1989). Utility of introducing ventricular premature complexes during reciprocating tachycardia in specifying the location of left free wall accessory pathways. The American Journal of Cardiology. 63(1). 49–57. 9 indexed citations

Bartels, Pamela, et al.. (1988). Metastatic liposarcoma of the right ventricle with outflow tract obstruction: Restrictive pathophysiology predicts poor surgical outcome. American Heart Journal. 115(3). 696–698. 9 indexed citations

Simonton, Charles A., Daniel B. Mark, Tomoaki Hinohara, et al.. (1988). Late restenosis after emergent coronary angioplasty for acute myocardial infarction: Comparison with elective coronary angioplasty. Journal of the American College of Cardiology. 11(4). 698–705. 39 indexed citations

Stack, Richard S., Cathal O’Connor, Daniel B. Mark, et al.. (1988). Coronary perfusion during acute myocardial infarction with a combined therapy of coronary angioplasty and high-dose intravenous streptokinase.. Circulation. 77(1). 151–161. 105 indexed citations

Blackshear, Joseph L., William G. O’Callaghan, & Robert M. Califf. (1987). Medical approaches to prevention of restenosis after coronary angioplasty. Journal of the American College of Cardiology. 9(4). 834–848. 100 indexed citations

Colavita, Paul G., Douglas L. Packer, Joyce C. Pressley, et al.. (1987). Frequency, diagnosis and clinical characteristics of patients with multiple accessory atrioventricular pathways. The American Journal of Cardiology. 59(6). 601–606. 55 indexed citations

O’Callaghan, William G., Paul G. Colavita, G. Neal Kay, et al.. (1986). Characterization of retrograde conduction by direct endocardial recording from an accessory atrioventricular pathway. Journal of the American College of Cardiology. 7(1). 167–171. 22 indexed citations

10.

Ellenbogen, Kenneth A., et al.. (1986). Accessory Nodoventricular (Mahaim) Fibers: A Clinical Review. Pacing and Clinical Electrophysiology. 9(6). 868–884. 34 indexed citations

11.

O’Callaghan, William G., Paul G. Colavita, G. Neal Kay, et al.. (1986). Persistent left superior vena cava: Localization of site of ectopic atrial pacemaker and associated atrioventricular accessory pathway. American Heart Journal. 111(6). 1200–1202. 2 indexed citations

12.

Ellenbogen, Kenneth A., William G. O’Callaghan, Paul G. Colavita, Mark Stafford‐Smith, & Lawrence D. German. (1985). Cardiac function in patients on chronic amiodarone therapy. American Heart Journal. 110(2). 376–381. 18 indexed citations

13.

Ellenbogen, Kenneth A., William G. O’Callaghan, Paul G. Colavita, et al.. (1985). Catheter atrioventricular junction ablation for recurrent supraventricular tachycardia with nodoventricular fibers. The American Journal of Cardiology. 55(9). 1227–1229. 19 indexed citations

14.

O’Callaghan, William G., et al.. (1984). Comparative response of male and female patients with coronary artery disease to exercise rehabilitation. European Heart Journal. 5(8). 649–651. 61 indexed citations

15.

Fitzgerald, D J, William G. O’Callaghan, Robyn J. McQuaid, K O'Malley, & Eoin OʼBrien. (1982). Accuracy and reliability of two indirect ambulatory blood pressure recorders: Remler M2000 and Cardiodyne Sphygmolog.. Heart. 48(6). 572–579. 23 indexed citations

16.

Fitzgerald, D J, William G. O’Callaghan, K O'Malley, & Eoin OʼBrien. (1981). Accuracy of the London School of Hygiene and Remler M2000 sphygmomanometers. Clinical Science. 61(s7). 399s–401s. 10 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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