Christopher M. O’Connor

66.9k total citations · 14 hit papers
655 papers, 41.5k citations indexed

About

Christopher M. O’Connor is a scholar working on Cardiology and Cardiovascular Medicine, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Christopher M. O’Connor has authored 655 papers receiving a total of 41.5k indexed citations (citations by other indexed papers that have themselves been cited), including 599 papers in Cardiology and Cardiovascular Medicine, 88 papers in Pulmonary and Respiratory Medicine and 63 papers in Surgery. Recurrent topics in Christopher M. O’Connor's work include Heart Failure Treatment and Management (449 papers), Cardiovascular Function and Risk Factors (196 papers) and Cardiac pacing and defibrillation studies (116 papers). Christopher M. O’Connor is often cited by papers focused on Heart Failure Treatment and Management (449 papers), Cardiovascular Function and Risk Factors (196 papers) and Cardiac pacing and defibrillation studies (116 papers). Christopher M. O’Connor collaborates with scholars based in United States, Canada and United Kingdom. Christopher M. O’Connor's co-authors include G. Michael Felker, David J. Whellan, Mona Fiuzat, Kirkwood F. Adams, Gregg C. Fonarow, Vic Hasselblad, Wendy Gattis Stough, Adrian F. Hernandez, Paul A. Gurbel and Mihai Gheorghiade and has published in prestigious journals such as New England Journal of Medicine, JAMA and Circulation.

In The Last Decade

Christopher M. O’Connor

634 papers receiving 40.0k citations

Hit Papers

Efficacy and Safety of Ex... 1996 2026 2006 2016 2009 2003 2005 1996 2004 400 800 1.2k
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.

  1. Efficacy and Safety of Exercise Training in Patients With Chronic Heart Failure
    2009 1.4k citations Christopher M. O’Connor, David J. Whellan et al. profile →
  2. Clopidogrel for Coronary Stenting
    2003 1.2k citations Christopher M. O’Connor et al. profile →
  3. Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization Effectiveness
    2005 957 citations Vic Hasselblad, Christopher M. O’Connor et al. profile →
  4. Effect of Amlodipine on Morbidity and Mortality in Severe Chronic Heart Failure
    1996 808 citations Christopher M. O’Connor et al. profile →
  5. Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure
    2004 706 citations Javed Butler, Christopher M. O’Connor et al. profile →
  6. Depression, Heart Rate Variability, and Acute Myocardial Infarction
    2001 578 citations Christopher M. O’Connor et al. profile →
  7. Effects of Exercise Training on Health Status in Patients With Chronic Heart Failure
    2009 543 citations Ileana L. Piña, David J. Whellan et al. profile →
  8. Predictors of In-Hospital Mortality in Patients Hospitalized for Heart Failure
    2008 434 citations Gregg C. Fonarow, Mihai Gheorghiade et al. profile →
  9. Noncardiac Comorbidities in Heart Failure With Reduced Versus Preserved Ejection Fraction
    2014 394 citations Robert J. Mentz, Adriaan A. Voors et al. profile →
  10. Palliative Care in Heart Failure
    2017 381 citations Robert J. Mentz, Mona Fiuzat et al. profile →
  11. Effect of Natriuretic Peptide–Guided Therapy on Hospitalization or Cardiovascular Mortality in High-Risk Patients With Heart Failure and Reduced Ejection Fraction
    2017 321 citations G. Michael Felker, Kirkwood F. Adams et al. profile →
  12. Standardized Team-Based Care for Cardiogenic Shock
    2019 280 citations Christopher M. O’Connor et al. profile →
  13. Worsening Renal Function in Patients With Acute Heart Failure Undergoing Aggressive Diuresis Is Not Associated With Tubular Injury
    2018 208 citations W.H. Wilson Tang, G. Michael Felker et al. profile →
  14. Effect of Vericiguat vs Placebo on Quality of Life in Patients With Heart Failure and Preserved Ejection Fraction
    2020 184 citations Paul W. Armstrong, Justin A. Ezekowitz et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Christopher M. O’Connor 33.2k 6.5k 6.0k 3.6k 2.9k 655 41.5k
Gary S. Francis 25.9k 0.8× 5.4k 0.8× 5.1k 0.8× 3.1k 0.9× 2.5k 0.9× 300 32.4k
William T. Abraham 49.4k 1.5× 9.5k 1.5× 9.0k 1.5× 5.3k 1.5× 2.0k 0.7× 692 59.9k
Piotr Ponikowski 30.2k 0.9× 4.7k 0.7× 6.8k 1.1× 2.9k 0.8× 3.4k 1.2× 799 44.7k
Marco Metra 23.9k 0.7× 4.1k 0.6× 5.7k 0.9× 2.5k 0.7× 1.4k 0.5× 808 32.4k
Clyde W. Yancy 48.4k 1.5× 7.4k 1.1× 5.6k 0.9× 2.9k 0.8× 1.5k 0.5× 603 60.3k
Luigi Tavazzi 39.9k 1.2× 7.2k 1.1× 4.7k 0.8× 2.4k 0.7× 1.7k 0.6× 579 47.5k
Gerasimos Filippatos 30.8k 0.9× 6.3k 1.0× 7.5k 1.3× 3.1k 0.9× 1.5k 0.5× 625 43.8k
Jay N. Cohn 35.0k 1.1× 7.0k 1.1× 4.6k 0.8× 2.8k 0.8× 4.0k 1.4× 544 43.0k
Javed Butler 29.1k 0.9× 6.4k 1.0× 6.2k 1.0× 3.2k 0.9× 1.3k 0.4× 825 42.1k
Andrew J.S. Coats 40.4k 1.2× 7.2k 1.1× 6.4k 1.1× 4.1k 1.2× 9.1k 3.2× 660 54.4k

Countries citing papers authored by Christopher M. O’Connor

Since Specialization
Citations

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

Fields of papers citing papers by Christopher M. O’Connor

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christopher M. O’Connor

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

All Works

20 of 20 papers shown
1.
Daubert, Melissa A., Eric Yow, G. Dewey Dunn, et al.. (2017). Novel Mitochondria-Targeting Peptide in Heart Failure Treatment. Circulation Heart Failure. 10(12). 133 indexed citations
2.
Maaten, Jozine M. ter, Kevin Damman, Jennifer S. Hanberg, et al.. (2016). Hypochloremia, Diuretic Resistance, and Outcome in Patients With Acute Heart Failure. Circulation Heart Failure. 9(8). 111 indexed citations
3.
Samad, Zainab, Linda K. Shaw, Matthew Phelan, et al.. (2015). Management and outcomes in patients with moderate or severe functional mitral regurgitation and severe left ventricular dysfunction. European Heart Journal. 36(40). 2733–2741. 43 indexed citations
4.
Mentz, Robert J., Marco Metra, Gad Cotter, et al.. (2015). Early vs. Late Worsening Heart Failure During Acute Heart Failure Hospitalization: Insights from the PROTECT Trial. European Journal of Heart Failure. 17(7). 697–706. 20 indexed citations
5.
Rocca, Hans‐Peter Brunner‐La, Luc W.M. Eurlings, Mark Richards, et al.. (2015). Which Heart Failure Patients Profit from Natriuretic Peptide Guided Therapy? a Meta-Analysis from Individual Patient Data of Randomized Trials. European Journal of Heart Failure. 17(12). 1252–1261. 67 indexed citations
6.
DeVore, Adam D., Vic Hasselblad, Robert J. Mentz, et al.. (2015). Loop Diuretic Dose Adjustments after a Hospitalization for Heart Failure: Insights From ASCEND-HF. European Journal of Heart Failure. 17(3). 340–346. 19 indexed citations
7.
Cotter, Gad, Marco Metra, Beth A. Davison, et al.. (2014). Worsening Heart Failure, a Critical Event During Hospital Admission for Acute Heart Failure: Results from the VERITAS Study. European Journal of Heart Failure. 16(12). 1362–1371. 23 indexed citations
8.
Metra, Marco, Robert J. Mentz, Karen Chiswell, et al.. (2014). Acute Heart Failure in Elderly Patients: Worse Outcomes and Differential Utility of Standard Prognostic Variables. Insights from the PROTECT Trial. European Journal of Heart Failure. 17(1). 109–118. 36 indexed citations
9.
McMurray, John J.V., Inder S. Anand, Rafael Díaz, et al.. (2013). Baseline Characteristics of Patients in the Reduction of Events with Darbepoetin Alfa in Heart Failure Trial (RED-HF). European Journal of Heart Failure. 15(3). 334–341. 23 indexed citations
10.
Toma, Mustafa, Justin A. Ezekowitz, Jeffrey A. Bakal, et al.. (2013). The Relationship between Left Ventricular Ejection Fraction and Mortality in Patients with Acute Heart Failure: Insights from the ASCEND-HF Trial. European Journal of Heart Failure. 16(3). 334–341. 52 indexed citations
11.
Meyer, Sven, Peter van der Meer, Barry M. Massie, et al.. (2013). Sex-Specific Acute Heart Failure Phenotypes and Outcomes from PROTECT. European Journal of Heart Failure. 15(12). 1374–1381. 48 indexed citations
12.
Lazzarini, Valentina, Robert J. Mentz, Mona Fiuzat, Marco Metra, & Christopher M. O’Connor. (2013). Heart Failure in Elderly Patients: Distinctive Features and Unresolved Issues. European Journal of Heart Failure. 15(7). 717–723. 131 indexed citations
13.
O’Connor, Christopher M., Robert J. Mentz, Gad Cotter, et al.. (2012). The PROTECT In-Hospital Risk Model: 7-Day Outcome in Patients Hospitalized with Acute Heart Failure and Renal Dysfunction. European Journal of Heart Failure. 14(6). 605–612. 102 indexed citations
14.
Mentz, Robert J., Adrian F. Hernandez, Amanda Stebbins, et al.. (2012). Predictors of Early Dyspnoea Relief in Acute Heart Failure and the Association with 30-Day Outcomes: Findings from ASCEND-HF. European Journal of Heart Failure. 15(4). 456–464. 34 indexed citations
15.
Mentz, Robert J., Bradley D. Allen, Mary Kwasny, et al.. (2012). Influence of Documented History of Coronary Artery Disease on Outcomes in Patients Admitted for Worsening Heart Failure with Reduced Ejection Fraction in the EVEREST Trial. European Journal of Heart Failure. 15(1). 61–68. 20 indexed citations
16.
Mentz, Robert J., Mona Fiuzat, Daniel Wojdyla, et al.. (2012). Clinical Characteristics and Outcomes of Hospitalized Heart Failure Patients with Systolic Dysfunction and Chronic Obstructive Pulmonary Disease: Findings from OPTIMIZE-HF. European Journal of Heart Failure. 14(4). 395–403. 88 indexed citations
17.
Fiuzat, Mona, Megan L. Neely, Aijing Z. Starr, et al.. (2012). Association between Adrenergic Receptor Genotypes and Beta-Blocker Dose in Heart Failure Patients: Analysis from the HF-ACTION DNA Substudy. European Journal of Heart Failure. 15(3). 258–266. 33 indexed citations
18.
Felker, G. Michael, Vic Hasselblad, W.H. Wilson Tang, et al.. (2012). Troponin I in Acute Decompensated Heart Failure: Insights from the ASCEND-HF Study. European Journal of Heart Failure. 14(11). 1257–1264. 87 indexed citations
19.
Dev, Sandesh, Robert M. Clare, G. Michael Felker, et al.. (2011). Link Between Decisions Regarding Resuscitation and Preferences for Quality Over Length of Life with Heart Failure. European Journal of Heart Failure. 14(1). 45–53. 18 indexed citations
20.
Hernandez, Adrian F., Gregg C. Fonarow, Bradley G. Hammill, et al.. (2009). Clinical Effectiveness of Implantable Cardioverter-Defibrillators Among Medicare Beneficiaries With Heart Failure. Circulation Heart Failure. 3(1). 7–13. 54 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

Breakdown of academic impact, for papers by Gary S. Francis Breakdown of academic impact, for papers by William T. Abraham Breakdown of academic impact, for papers by Piotr Ponikowski Breakdown of academic impact, for papers by Marco Metra Breakdown of academic impact, for papers by Clyde W. Yancy Breakdown of academic impact, for papers by Luigi Tavazzi Breakdown of academic impact, for papers by Gerasimos Filippatos Breakdown of academic impact, for papers by Jay N. Cohn Breakdown of academic impact, for papers by Javed Butler Breakdown of academic impact, for papers by Andrew J.S. Coats
Rankless by CCL
2026