Thomas J. Ryan

32.7k citations
293 papers · 21.2k · 9 hit papers · h-index 72

Impact in

Papers in

    • Acute Myocardial Infarction Research 41
    • Cardiac, Anesthesia and Surgical Outcomes 34
    • Cardiovascular Effects of Exercise 24
    • Cardiovascular Function and Risk Factors 24
    • Cardiac electrophysiology and arrhythmias 20
    • Cardiac pacing and defibrillation studies 19
    • Coronary Interventions and Diagnostics 59

Thomas J. Ryan

282 papers receiving 19.7k citations

Thomas J. Ryan's Hit Papers

Validating recommendations for coronary angiography following acute myocardial infarction in the elderly 2001 · 985 citations
9850+15+31Years since publication50010001.5k

Peers

Thomas J. Ryan
Comparison fields: 5 of 186
  • Cardiology and Cardiovascular Medicine 11.1k
  • Radiology, Nuclear Medicine and Imaging 5.6k
  • Surgery 7.2k
  • Internal Medicine 429
  • Complementary and alternative medicine 557
Replace Richard Gorlin with:
Richard Gorlin United States
Martial G. Bourassa Canada
David P. Faxon United States
William S. Weintraub United States
Mark A. Hlatky United States
Loren F. Hiratzka United States
Raymond J. Gibbons United States
Lloyd D. Fisher United States
Kristian Thygesen Denmark
Donald E. Casey United States
Thomas J. Ryan relative to Richard Gorlin United States Richard Gorlin's profile →
Citations per field
00.5×5.3×
Richard Gorlin · 1×
Citations per year

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-authors

The 25 scholars most cited alongside Thomas J. Ryan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Thomas J. Ryan Line = papers co-authored together Thomas J. Ryan links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 293 papers — load more, or switch the sort, to bring in the rest.

#Work
1
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).
Hit paper breakdown →
19881666
2
Validating recommendations for coronary angiography following acute myocardial infarction in the elderly
Hit paper breakdown →
2001985
3
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 [email protected]
Hit paper breakdown →
1999848
4
Guidelines for percutaneous transluminal coronary angioplasty
Hit paper breakdown →
1988805
5
Survival of medically treated patients in the coronary artery surgery study (CASS) registry.
Hit paper breakdown →
1982552
6
1999 Update: ACC/AHA Guidelines for the Management of Patients With Acute Myocardial Infarction: Executive Summary and Recommendations
Hit paper breakdown →
1999548
7
Guidelines for perioperative cardiovascular evaluation for noncardiac surgery
Hit paper breakdown →
1996501
8
The Effect of Atherosclerosis on the Vasomotor Response of Coronary Arteries to Mental Stress
Hit paper breakdown →
1991469
9 1999443
10
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 [email protected]
1999441
11
Exercise Stress Testing
Hit paper breakdown →
1979427
12 2005411
13 2002374
14 1993316
15 1981310
16 1984257
17 1980257
18 1994249
19 1983247
20 1994245

About Thomas J. Ryan

Thomas J. Ryan is a scholar working on Cardiology and Cardiovascular Medicine, Surgery, Radiology, Nuclear Medicine and Imaging, Pulmonary and Respiratory Medicine and Complementary and alternative medicine, having authored 293 papers that have together received 21.2k indexed citations. Recurring topics across this work include Cardiac Imaging and Diagnostics (92 papers), Coronary Interventions and Diagnostics (59 papers), Acute Myocardial Infarction Research (41 papers), Cardiac, Anesthesia and Surgical Outcomes (34 papers), Cardiovascular Effects of Exercise (24 papers), Cardiovascular Function and Risk Factors (24 papers), Cardiac electrophysiology and arrhythmias (20 papers) and Cardiac pacing and defibrillation studies (19 papers). The work is most often cited by research in Cardiology and Cardiovascular Medicine (11.1k citations), Radiology, Nuclear Medicine and Imaging (5.6k citations), Surgery (7.2k citations), Internal Medicine (429 citations) and Complementary and alternative medicine (557 citations). Thomas J. Ryan has collaborated with scholars based in United States, Canada and Pakistan. Frequent co-authors include David P. Faxon, Donald A. Weiner, John W. Kennedy, Carolyn H. McCabe, Lloyd D. Fisher, Bernard Chaitman, Spencer B. King, Richard O. Russell, Christian C. Haudenschild and George C. Kaiser. Their work appears in journals such as Journal of the American College of Cardiology, Circulation, The American Journal of Cardiology, American Heart Journal and Journal of Thoracic and Cardiovascular Surgery.

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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