Timothy S. Callahan

874 total citations
19 papers, 693 citations indexed

About

Timothy S. Callahan is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Complementary and alternative medicine. According to data from OpenAlex, Timothy S. Callahan has authored 19 papers receiving a total of 693 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Cardiology and Cardiovascular Medicine, 5 papers in Radiology, Nuclear Medicine and Imaging and 3 papers in Complementary and alternative medicine. Recurrent topics in Timothy S. Callahan's work include Cardiac pacing and defibrillation studies (4 papers), Cardiovascular Function and Risk Factors (4 papers) and Cardiac electrophysiology and arrhythmias (4 papers). Timothy S. Callahan is often cited by papers focused on Cardiac pacing and defibrillation studies (4 papers), Cardiovascular Function and Risk Factors (4 papers) and Cardiac electrophysiology and arrhythmias (4 papers). Timothy S. Callahan collaborates with scholars based in United States and United Kingdom. Timothy S. Callahan's co-authors include Julio A. Panza, Stephen E. Epstein, Arshed A. Quyyumi, Jean G. Diodati, William E. Shell, Dwain L. Eckberg, R.J. Prescott, S E Epstein, Ajay M. Shah and Keith A.A. Fox and has published in prestigious journals such as Blood, Journal of the American College of Cardiology and The American Journal of Medicine.

In The Last Decade

Timothy S. Callahan

19 papers receiving 664 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Timothy S. Callahan United States	11	535	143	90	82	73	19	693
Alphons J.H.M. Houben Netherlands	16	344 0.6×	140 1.0×	68 0.8×	134 1.6×	106 1.5×	38	709
T Thien Netherlands	16	287 0.5×	130 0.9×	102 1.1×	43 0.5×	164 2.2×	36	697
Yu‐An Ding Taiwan	21	1.2k 2.2×	145 1.0×	49 0.5×	61 0.7×	96 1.3×	59	1.4k
Jan Hall Sweden	8	337 0.6×	123 0.9×	48 0.5×	111 1.4×	83 1.1×	10	755
Francesca Arenare Italy	12	809 1.5×	173 1.2×	49 0.5×	67 0.8×	103 1.4×	18	1.0k
S. Boesgaard Denmark	9	282 0.5×	104 0.7×	45 0.5×	69 0.8×	197 2.7×	18	605
M Safar France	13	631 1.2×	95 0.7×	61 0.7×	176 2.1×	139 1.9×	44	813
Joseph A. Diamond United States	15	573 1.1×	55 0.4×	138 1.5×	57 0.7×	111 1.5×	50	773
Giancarlo Longobardi Italy	15	468 0.9×	165 1.2×	181 2.0×	42 0.5×	123 1.7×	37	1.1k
Y. Plantinga Italy	18	548 1.0×	137 1.0×	33 0.4×	155 1.9×	111 1.5×	26	947

Countries citing papers authored by Timothy S. Callahan

Since Specialization

Citations

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

Fields of papers citing papers by Timothy S. Callahan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Timothy S. Callahan. 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 Timothy S. Callahan. The network helps show where Timothy S. Callahan may publish in the future.

Co-authorship network of co-authors of Timothy S. Callahan

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

All Works

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19 of 19 papers shown

Lin, Tara L., Laura F. Newell, Robert K. Stuart, et al.. (2019). A phase 2 study to assess the pharmacokinetics and pharmacodynamics of CPX-351 and its effects on cardiac repolarization in patients with acute leukemias. Cancer Chemotherapy and Pharmacology. 84(1). 163–173. 13 indexed citations

Moore, Kathleen N., John K. Chan, Angeles Alvarez Secord, et al.. (2019). Effect of niraparib on cardiac repolarization in patients with platinum-sensitive, recurrent epithelial ovarian, fallopian tube, and primary peritoneal cancer. Cancer Chemotherapy and Pharmacology. 83(4). 717–726. 4 indexed citations

Lin, Tara L., Laura F. Newell, Robert K. Stuart, et al.. (2015). CPX-351 ((Cytarabine:Daunorubicin) Liposome Injection, (Vyxeos)) Does Not Prolong Qtcf Intervals, Requires No Dose Adjustment for Impaired Renal Function and Induces High Rates of Complete Remission in Acute Myeloid Leukemia. Blood. 126(23). 2510–2510. 10 indexed citations

Turner, J. Rick, et al.. (2010). The Science of Cardiac Safety. 4 indexed citations

Moore, Keith A., Timothy S. Callahan, Pierre Maison‐Blanche, et al.. (2010). Thorough cardiac QTc interval conductance assessment of a novel oral tranexamic acid treatment for heavy menstrual bleeding. Expert Opinion on Pharmacotherapy. 11(14). 2281–2290. 9 indexed citations

Haley, Robert W., Wanpen Vongpatanasin, Gil I. Wolfe, et al.. (2004). Blunted circadian variation in autonomic regulation of sinus node function in veterans with Gulf War syndrome. The American Journal of Medicine. 117(7). 469–478. 62 indexed citations

Kearney, Mark T., Azfar Zaman, Dwain L. Eckberg, et al.. (2003). Cardiac size, autonomic function, and 5-year follow-up of chronic heart failure patients with severe prolongation of ventricular activation. Journal of Cardiac Failure. 9(2). 93–99. 27 indexed citations

Kearney, Mark T., Keith A.A. Fox, Amanda Lee, et al.. (2002). Predicting death due to progressive heart failure in patients with mild-to-moderate chronic heart failure. Journal of the American College of Cardiology. 40(10). 1801–1808. 177 indexed citations

Callahan, Timothy S., et al.. (2000). Contents and Quality Control of Ambulatory Electrocardiographic (Holter) Reports and Data. Drug Information Journal. 34(1). 59–68. 1 indexed citations

10.

Quyyumi, Arshed A., Julio A. Panza, Jean G. Diodati, et al.. (1993). Prognostic implications of myocardial ischemia during daily life in low risk patients with coronary artery disease. Journal of the American College of Cardiology. 21(3). 700–708. 36 indexed citations

11.

Panza, Julio A., Arshed A. Quyyumi, Timothy S. Callahan, & Stephen E. Epstein. (1993). Effect of antihypertensive treatment on endothelium-dependent vascular relaxation in patients with essential hypertension. Journal of the American College of Cardiology. 21(5). 1145–1151. 209 indexed citations

12.

Quyyumi, Arshed A., Julio A. Panza, Jean G. Diodati, et al.. (1992). Relation between left ventricular function at rest and with exercise and silent myocardial ischemia. Journal of the American College of Cardiology. 19(5). 962–967. 11 indexed citations

13.

Panza, Julio A., Arshed A. Quyyumi, Jean G. Diodati, et al.. (1992). Long-term variation in myocardial ischemia during daily life in patients with stable coronary artery disease: Its relation to changes in the ischemic threshold. Journal of the American College of Cardiology. 19(3). 500–506. 11 indexed citations

14.

Panza, Julio A., Jean G. Diodati, Timothy S. Callahan, S E Epstein, & Arshed A. Quyyumi. (1992). Role of increases in heart rate in determining the occurrence and frequency of myocardial ischemia during daily life in patients with stable coronary artery disease. Journal of the American College of Cardiology. 20(5). 1092–1098. 61 indexed citations

15.

Panza, Julio A., Arshed A. Quyyumi, Jean G. Diodati, Timothy S. Callahan, & Stephen E. Epstein. (1991). Mechanisms and determinants of frequency of myocardial ischemia during daily life in patients with stable coronary artery disease. Journal of the American College of Cardiology. 17(2). A321–A321. 1 indexed citations

16.

Panza, Julio A., Arshed A. Quyyumi, Jean G. Diodati, Timothy S. Callahan, & Stephen E. Epstein. (1991). Prediction of the frequency and duration of ambulatory myocardial ischemia in patients with stable coronary artery disease by determination of the ischemic threshold from exercise testing: Importance of the exercise protocol. Journal of the American College of Cardiology. 17(3). 657–663. 52 indexed citations

17.

Panza, Julio A., Jean G. Diodati, Timothy S. Callahan, & Arshed A. Quyyumi. (1990). Long-term variation in silent ischemia during daily life in patients with stable coronary artery disease: its occurrence and its relation to ischemic threshold. Journal of the American College of Cardiology. 15(2). A108–A108. 1 indexed citations

18.

Panza, Julio A., Jean G. Diodati, Timothy S. Callahan, & Arshed A. Quyyumi. (1990). Prediction of magnitude of silent ischemia during daily life by stress test in patients with coronary artery disease: Importance of the exercise protocal. Journal of the American College of Cardiology. 15(2). A81–A81. 1 indexed citations

19.

Callahan, Timothy S., et al.. (1975). Thrombosis at the site of interruption of the vena cava: a consideration in prophylactic treatment of pulmonary embolism.. PubMed. 41(11). 714–25. 3 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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