Thomas J. Ryan

32.7k total citations · 8 hit papers
294 papers, 21.2k citations indexed

About

Thomas J. Ryan is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Thomas J. Ryan has authored 294 papers receiving a total of 21.2k indexed citations (citations by other indexed papers that have themselves been cited), including 193 papers in Cardiology and Cardiovascular Medicine, 119 papers in Surgery and 101 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Thomas J. Ryan's work include Cardiac Imaging and Diagnostics (101 papers), Coronary Interventions and Diagnostics (73 papers) and Acute Myocardial Infarction Research (52 papers). Thomas J. Ryan is often cited by papers focused on Cardiac Imaging and Diagnostics (101 papers), Coronary Interventions and Diagnostics (73 papers) and Acute Myocardial Infarction Research (52 papers). Thomas J. Ryan collaborates with scholars based in United States, Canada and Pakistan. Thomas J. Ryan's co-authors include David P. Faxon, Donald A. Weiner, John W. Kennedy, Lloyd D. Fisher, Carolyn H. McCabe, Bernard Chaitman, Spencer B. King, Richard O. Russell, Christian C. Haudenschild and George C. Kaiser and has published in prestigious journals such as New England Journal of Medicine, The Lancet and Journal of the American Chemical Society.

In The Last Decade

Thomas J. Ryan

284 papers receiving 19.7k citations

Hit Papers

5 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.

Guidelines for percutaneous transluminal coronary angioplasty. A report of the American College of Cardiology/American Heart Association Task Force on Assessment of Diagnostic and Therapeutic Cardiovascular Procedures (Subcommittee on Percutaneous Transluminal Coronary Angioplasty).

1988 1.7k citations Thomas J. Ryan, David P. Faxon et al. profile →
Validating recommendations for coronary angiography following acute myocardial infarction in the elderly

2001 972 citations Thomas J. Ryan et al. profile →
ACC/AHA guidelines for coronary angiography11“ACC/AHA Guidelines for Coronary Angiography” was approved by the American College of Cardiology Board of Trustees in October 1998 and by the American Heart Association Science Advisory and Coordinating Committee in December 1998.22When citing this document, the American College of Cardiology and the American Heart Association request that the following format be used: Scanlon PJ, Faxon DP, Audet AM, Carabello B, Dehmer GJ, Eagle KA, Legako RD, Leon DF, Murray JA, Nissen SD, Pepine CJ, Watson RM. ACC/AHA guidelines for coronary angiography: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on Coronary Angiography). J Am Coll Cardiol1999;33:1756–82433This document is available on the websites of the ACC (www.acc.org) and the AHA (www.americanheart.org). Reprints of this document (the complete guidelines) are available for $5 each by calling 800-253-4636 (US only) or writing the American College of Cardiology, Educational Services, 9111 Old Georgetown Road, Bethesda, MD 20814-1699. Ask for reprint No. 71-0164. To obtain a reprint of the shorter version (executive summary and summary of recommendations) published in the May 4, 1999, issue of Circulation, ask for reprint No. 71-0163. To purchase additional reprints (specify version and reprint number): up to 999 copies, call 800-611-6083 (US only) or fax 413-665-2671; 1000 or more copies, call 214-706-1466, fax 214-691-6342, or e-mail pubauth@heart.org

1999 842 citations Patrick J. Scanlon, David P. Faxon et al. Journal of the American College of Cardiology profile →
Guidelines for percutaneous transluminal coronary angioplasty

1988 807 citations Thomas J. Ryan Journal of the American College of Cardiology profile →
Survival of medically treated patients in the coronary artery surgery study (CASS) registry.

1982 552 citations Michael B. Mock, Lloyd D. Fisher et al. profile →
1999 Update: ACC/AHA Guidelines for the Management of Patients With Acute Myocardial Infarction: Executive Summary and Recommendations

1999 550 citations Thomas J. Ryan, L. David Hillis et al. profile →
Guidelines for perioperative cardiovascular evaluation for noncardiac surgery

1996 501 citations Bernard Chaitman, Robert C. Schlant et al. Journal of the American College of Cardiology profile →
Exercise Stress Testing

1979 427 citations Donald A. Weiner, Thomas J. Ryan et al. profile →

Peers

Countries citing papers authored by Thomas J. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by Thomas J. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Contemporary Long‐Term Patient Reported Outcomes of Pilon Fractures 2025 ·ANZ Journal of Surgery ·Thomas J. Ryan, Natalie Enninghorst, J. G. Partridge, (unknown), J. P. Du Plessis, Carol J. Henry, Natasha Weaver, Seth M. Tarrant, Zsolt J. Balogh	1
2	Spine surgeon conflict of interest disclosure discrepancies between a national conference and the open payments database 2025 ·North American Spine Society Journal (NASSJ) ·(unknown), (unknown), (unknown), Thomas J. Ryan, (unknown), (unknown), David Kowalski, Christopher Lucasti	1
3	Intermediate-Strength Purified Protein Derivative 2015 ·American Review of Respiratory Disease ·Sol Katz, (unknown), Thomas J. Ryan, Thomas O’Connor, (unknown), (unknown)	0
4	A comparison of short- and long-term outcomes after off-pump and on-pump coronary artery bypass graft surgery with sternotomy 2004 ·Journal of the American College of Cardiology ·Michael Racz, Edward L. Hannan, O. Wayne Isom, Valavanur A. Subramanian, Robert H. Jones, Jeffrey P. Gold, Thomas J. Ryan, Alan Hartman, Alfred T. Culliford, Edward V. Bennett, Robert Lancey, Eric A. Rose	97
5	The coronary angiogram and its seminal contributions to cardiovascular medicine over five decades. 2002 ·PubMed Central ·Thomas J. Ryan	6
6	Safety of concomitant therapy with eptifibatide and enoxaparin in patients undergoing percutaneous coronary intervention: Results of the coronary revascularization using integrilin and single bolus enoxaparin study 2002 ·Journal of the American College of Cardiology ·Deepak L. Bhatt, (unknown), Peter J. Casterella, Mark Pulsipher, Matthew B. Rogers, Marc Cohen, (unknown), Thomas J. Ryan, Jeffrey A. Breall, Jeffrey W. Moses, Gregory M. Eaton, (unknown), A. Michael Lincoff	72
7	ACC/AHA/ACP-ASIM guidelines for the management of patients with chronic stable angina11This document was approved by the American College of Cardiology Board of Trustees in March 1999, the American Heart Association Science Advisory and Coordinating Committee in March 1999, and the American College of Physicians-American Society of Internal Medicine Board of Regents in February 1999.When citing this document, please use the following citation format: Gibbons RJ, Chatterjee K, Daley J, Douglas JS, Fihn SD, Gardin JM, Grunwald MA, Levy D, Lytle BW, O’Rourke RA, Schafer WP, Williams SV. ACC/AHA/ACP-ASIM guidelines for the management of patients with chronic stable angina: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on the Management of Patients With Chronic Stable Angina). J Am Coll Cardiol 1999;33:2092–197.This document is available on the World Wide Web sites of the American College of Cardiology (www.acc.org) and the American Heart Association (www.americanheart.org). Reprints of this document are available by calling 1-800-253-4636 or writing the American College of Cardiology, Educational Services, at 9111 Old Georgetown Road, Bethesda, MD 20814-1699. Ask for reprint number 71-0166. To obtain a reprint of the Executive Summary and Recommendations published in the June 1, 1999 issue of Circulation, ask for reprint number 71-0167. To purchase bulk reprints (specify version and reprint number): Up to 999 copies call 1-800-611-6083 (US only) or fax 413-665-2671; 1000 or more copies call 214-706-1466, fax 214-691-6342, or e-mail pubauth@heart.org 1999 ·Journal of the American College of Cardiology ·Raymond J. Gibbons, Kanu Chatterjee, Jennifer Daley, John S. Douglas, Stephan D. Fihn, Julius M. Gardin, (unknown), Daniel Levy, Bruce W. Lytle, Robert A. O’Rourke, (unknown), Sankey V. Williams, James L. Ritchie, Melvin D. Cheitlin, Kim A. Eagle, Timothy J. Gardner, Arthur Garson, Richard O. Russell, Thomas J. Ryan, Sidney C. Smith	441
8	Guidelines for clinical intracardiac electrophysiological and catheter ablation procedures: A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on Clinical Intracardiac Electrophysiologic and Catheter Ablation Procedures) 1995 ·Journal of Cardiovascular Electrophysiology ·Douglas P. Zipes, John Dimarco, P. C. Gillette, (unknown), Robert J. Myerburg, S H Rahimtoola, James L. Ritchie, M.D. Cheitlin, Arthur Garson, Raymond J. Gibbons, Richard P. Lewis, Robert A. O’Rourke, Thomas J. Ryan, Robert C. Schlant	19
9	Incidence and prognostic implications of heart block complicating inferior myocardial infarction treated with thrombolytic therapy: Results from TIMI II 1992 ·Journal of the American College of Cardiology ·Peter B. Berger, Nicholas A. Ruocco, Thomas J. Ryan, Margaret Frederick, Alice K. Jacobs, David P. Faxon	78
10	ACC/AHA guidelines for cardiac catheterization and cardiac catheterization laboratories 1991 ·Journal of the American College of Cardiology ·Carl J. Pepine, Francis J. Klocke, Hugh D. Allen, William W. Parmley, Thomas M. Bashore, Thomas A. Ports, Jeffrey Brinker, Elliot Rapaport, Lawrence H. Cohn, John Ross, James C. Dillon, Barry D. Rutherford, L. David Hillis, Thomas J. Ryan, Patrick J. Scanlon	104
11	Angiotensin converting enzyme inhibition reduces restenosis in experimental angioplasty 1991 ·Journal of the American College of Cardiology ·Seth Bilazarian, Jesse W. Currier, Christian C. Haudenschild, (unknown), (unknown), Thomas J. Ryan, David P. Faxon	13
12	Prevalence and prognostic significance of silent and symptomatic ischemia after coronary bypass surgery: A report from the Coronary Artery Surgery Study (CASS) randomized population 1991 ·Journal of the American College of Cardiology ·Donald A. Weiner, Thomas J. Ryan, Lori Parsons, Lloyd D. Fisher, Bernard Chaitman, L. Thomas Sheffield, Felix E. Tristani	46
13	Clinical competence in exercise testing 1990 ·Journal of the American College of Cardiology ·Robert C. Schlant, Gottlieb C. Friesinger, James J. Leonard, Sankey V. Williams, James L. Achord, Francis J. Klocke, Richard L. Popp, William A. Reynolds, Thomas J. Ryan, William L. Winters	40
14	Physiologic responses to arm ergometry exercise relative to age and gender 1990 ·Journal of the American College of Cardiology ·Gary Balady, Donald A. Weiner, Linda M. Rose, Thomas J. Ryan, Madeline Erario	35
15	Improved survival of surgically treated patients with triple vessel coronary artery disease and severe angina pectoris 1989 ·Journal of Thoracic and Cardiovascular Surgery ·William O. Myers, Hartzell V. Schaff, Bernard J. Gersh, Lloyd D. Fisher, Andrzej S. Kosinski, Michael B. Mock, David R. Holmes, Thomas J. Ryan, George C. Kaiser	59
16	Arm exercise-thallium imaging testing for the detection of coronary artery disease 1987 ·Journal of the American College of Cardiology ·Gary Balady, Donald A. Weiner, James A. Rothendler, Thomas J. Ryan	27
17	Contribution of vasopressin to vasoconstriction in patients with congestive heart failure: Comparison with the renin-angiotensin system and the sympathetic nervous system 1986 ·Journal of the American College of Cardiology ·Mark A. Creager, David P. Faxon, Sally S. Cutler, Osvaldo Kohlmann, Thomas J. Ryan, Haralambos Gavras	161
18	Role of percutaneous transluminal coronary angioplasty in the treatment of unstable angina 1984 ·The American Journal of Cardiology ·David P. Faxon, Katherine M. Detre, Carolyn H. McCabe, Lloyd D. Fisher, David R. Holmes, Michael J. Cowley, Martial G. Bourassa, Mark Van Raden, Thomas J. Ryan	80
19	Efficacy and safety of incremental doses of diltiazem for the treatment of stable angina pectoris 1983 ·Journal of the American College of Cardiology ·(unknown), Donald A. Weiner, Carolyn H. McCabe, Sally S. Cutler, Thomas J. Ryan, Michael D. Klein	44
20	Multivariate discriminant analysis of the clinical and angiographic predictors of operative mortality from the Collaborative Study in Coronary Artery Surgery (CASS) 1980 ·Journal of Thoracic and Cardiovascular Surgery ·John W. Kennedy, George C. Kaiser, Lloyd D. Fisher, Charles Maynard, James K. Fritz, W. M. Myers, J. Gerard Mudd, Thomas J. Ryan, (unknown)	257

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