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, Wendy Gattis Stough, Vic Hasselblad, Adrian F. Hernandez, Mihai Gheorghiade and Paul A. Gurbel 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

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.

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 →
Clopidogrel for Coronary Stenting

2003 1.2k citations Christopher M. O’Connor et al. Circulation profile →
Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization Effectiveness

2005 957 citations Vic Hasselblad, Christopher M. O’Connor et al. profile →
Effect of Amlodipine on Morbidity and Mortality in Severe Chronic Heart Failure

1996 808 citations Christopher M. O’Connor et al. profile →
Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure

2004 706 citations Javed Butler, William T. Abraham et al. profile →
Depression, Heart Rate Variability, and Acute Myocardial Infarction

2001 578 citations Christopher M. O’Connor et al. Circulation profile →
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 →
Predictors of In-Hospital Mortality in Patients Hospitalized for Heart Failure

2008 434 citations William T. Abraham, Gregg C. Fonarow et al. profile →
Noncardiac Comorbidities in Heart Failure With Reduced Versus Preserved Ejection Fraction

2014 394 citations Robert J. Mentz, Adriaan A. Voors et al. profile →
Palliative Care in Heart Failure

2017 381 citations Robert J. Mentz, Mona Fiuzat et al. profile →
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 →
Standardized Team-Based Care for Cardiogenic Shock

2019 280 citations Christopher M. O’Connor et al. profile →
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. Circulation profile →
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 →

Peers

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

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

20 of 20 papers shown

#	Work	Indexed citations
1	Abstract 9541: Comparing Patient Reported Outcomes and New York Heart Association Class Among Patients Hospitalized for Heart Failure 2022 ·Circulation ·(unknown), (unknown), Jie‐Lena Sun, Brooke Alhanti, Josephine Harrington, Javed Butler, Christopher M. O’Connor, Adrian F. Hernandez, Randall C. Starling, Robert J. Mentz, Stephen J. Greene	0
2	Novel Mitochondria-Targeting Peptide in Heart Failure Treatment 2017 ·Circulation Heart Failure ·Melissa A. Daubert, Eric Yow, G. Dewey Dunn, (unknown), Huiman X. Barnhart, Pamela S. Douglas, Christopher M. O’Connor, Sidney Goldstein, James E. Udelson, Hani N. Sabbah	133
3	Hypochloremia, Diuretic Resistance, and Outcome in Patients With Acute Heart Failure 2016 ·Circulation Heart Failure ·Jozine M. ter Maaten, Kevin Damman, Jennifer S. Hanberg, Michael M. Givertz, Marco Metra, Christopher M. O’Connor, John R. Teerlink, Piotr Ponikowski, Gad Cotter, Beth A. Davison, John G.F. Cleland, Daniel M. Bloomfield, Hans L. Hillege, Dirk J. van Veldhuisen, Adriaan A. Voors, Jeffrey M. Testani	111
4	Management and outcomes in patients with moderate or severe functional mitral regurgitation and severe left ventricular dysfunction 2015 ·European Heart Journal ·Zainab Samad, Linda K. Shaw, Matthew Phelan, Mads Ersbøll, Niels Risum, Hussein R. Al‐Khalidi, Donald D. Glower, Carmelo A. Milano, John H. Alexander, Christopher M. O’Connor, Andrew Wang, Eric J. Velazquez	43
5	Early vs. Late Worsening Heart Failure During Acute Heart Failure Hospitalization: Insights from the PROTECT Trial 2015 ·European Journal of Heart Failure ·Robert J. Mentz, Marco Metra, Gad Cotter, Olga Milo, (unknown), Karen Chiswell, Beth A. Davison, John G.F. Cleland, Daniel M. Bloomfield, Howard C. Dittrich, Mona Fiuzat, Piotr Ponikowski, Michael M. Givertz, Adriaan A. Voors, John R. Teerlink, Christopher M. O’Connor	20
6	Which Heart Failure Patients Profit from Natriuretic Peptide Guided Therapy? a Meta-Analysis from Individual Patient Data of Randomized Trials 2015 ·European Journal of Heart Failure ·Hans‐Peter Brunner‐La Rocca, Luc W.M. Eurlings, Mark Richards, James L. Januzzi, Matthias Pfisterer, Ulf Dahlström, Yigal M. Pinto, Patric Karlström, (unknown), Rudolf Berger, Hans Persson, Christopher M. O’Connor, Deddo Moertl, Hanna K. Gaggin, Christopher Frampton, M. Gary Nicholls, Richard W. Troughton	67
7	Worsening Heart Failure, a Critical Event During Hospital Admission for Acute Heart Failure: Results from the VERITAS Study 2014 ·European Journal of Heart Failure ·Gad Cotter, Marco Metra, Beth A. Davison, Stefanie Senger, Robert C. Bourge, John G.F. Cleland, Guillaume Jondeau, Henry Krum, Christopher M. O’Connor, John D. Parker, Guillermo Torre‐Amione, Dirk J. van Veldhuisen, Olga Milo, Isaac Kobrin, Maurizio Rainisio, John J.V. McMurray, John R. Teerlink, (unknown)	23
8	Acute Heart Failure in Elderly Patients: Worse Outcomes and Differential Utility of Standard Prognostic Variables. Insights from the PROTECT Trial 2014 ·European Journal of Heart Failure ·Marco Metra, Robert J. Mentz, Karen Chiswell, Daniel M. Bloomfield, John G.F. Cleland, Gad Cotter, Beth A. Davison, Howard C. Dittrich, Mona Fiuzat, Michael M. Givertz, Valentina Lazzarini, George A. Mansoor, Barry M. Massie, Piotr Ponikowski, John R. Teerlink, Adriaan A. Voors, Christopher M. O’Connor	36
9	Baseline Characteristics of Patients in the Reduction of Events with Darbepoetin Alfa in Heart Failure Trial (RED-HF) 2013 ·European Journal of Heart Failure ·John J.V. McMurray, Inder S. Anand, Rafael Díaz, Aldo P. Maggioni, Christopher M. O’Connor, Marc A. Pfeffer, Scott D. Solomon, Michał Tendera, Dirk J. van Veldhuisen, Moetaz Albizem, Sunfa Cheng, Debra Scarlata, Karl Swedberg, James B. Young	23
10	The Relationship between Left Ventricular Ejection Fraction and Mortality in Patients with Acute Heart Failure: Insights from the ASCEND-HF Trial 2013 ·European Journal of Heart Failure ·Mustafa Toma, Justin A. Ezekowitz, Jeffrey A. Bakal, Christopher M. O’Connor, Adrian F. Hernandez, Muhammad Sardar, Ronald Zolty, Barry M. Massie, Karl Swedberg, Paul W. Armstrong, Randall C. Starling	52
11	Sex-Specific Acute Heart Failure Phenotypes and Outcomes from PROTECT 2013 ·European Journal of Heart Failure ·Sven Meyer, Peter van der Meer, Barry M. Massie, Christopher M. O’Connor, Marco Metra, Piotr Ponikowski, John R. Teerlink, Gad Cotter, Beth A. Davison, John G.F. Cleland, Michael M. Givertz, Daniel M. Bloomfield, Mona Fiuzat, Howard C. Dittrich, Hans L. Hillege, Adriaan A. Voors	48
12	The PROTECT In-Hospital Risk Model: 7-Day Outcome in Patients Hospitalized with Acute Heart Failure and Renal Dysfunction 2012 ·European Journal of Heart Failure ·Christopher M. O’Connor, Robert J. Mentz, Gad Cotter, Marco Metra, John G.F. Cleland, Beth A. Davison, Michael M. Givertz, George A. Mansoor, Piotr Ponikowski, John R. Teerlink, Adriaan A. Voors, Mona Fiuzat, Daniel Wojdyla, Karen Chiswell, Barry M. Massie	102
13	Predictors of Early Dyspnoea Relief in Acute Heart Failure and the Association with 30-Day Outcomes: Findings from ASCEND-HF 2012 ·European Journal of Heart Failure ·Robert J. Mentz, Adrian F. Hernandez, Amanda Stebbins, Justin A. Ezekowitz, G. Michael Felker, Gretchen Heizer, Dan Atar, John R. Teerlink, Robert M. Califf, Barry M. Massie, Vic Hasselblad, Randall C. Starling, Christopher M. O’Connor, Piotr Ponikowski	34
14	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 2012 ·European Journal of Heart Failure ·Robert J. Mentz, Bradley D. Allen, Mary Kwasny, Marvin A. Konstam, James E. Udelson, Andrew P. Ambrosy, Angela J. Fought, Muthiah Vaduganathan, Christopher M. O’Connor, Faı̈ez Zannad, Aldo P. Maggioni, Karl Swedberg, Robert O. Bonow, Mihai Gheorghiade	20
15	Clinical Characteristics and Outcomes of Hospitalized Heart Failure Patients with Systolic Dysfunction and Chronic Obstructive Pulmonary Disease: Findings from OPTIMIZE-HF 2012 ·European Journal of Heart Failure ·Robert J. Mentz, Mona Fiuzat, Daniel Wojdyla, Karen Chiswell, Mihai Gheorghiade, Gregg C. Fonarow, Christopher M. O’Connor	88
16	Association between Adrenergic Receptor Genotypes and Beta-Blocker Dose in Heart Failure Patients: Analysis from the HF-ACTION DNA Substudy 2012 ·European Journal of Heart Failure ·Mona Fiuzat, Megan L. Neely, Aijing Z. Starr, William E. Kraus, G. Michael Felker, Mark Donahue, Kirkwood F. Adams, Ileana L. Piña, David J. Whellan, Christopher M. O’Connor	33
17	Troponin I in Acute Decompensated Heart Failure: Insights from the ASCEND-HF Study 2012 ·European Journal of Heart Failure ·G. Michael Felker, Vic Hasselblad, W.H. Wilson Tang, Adrian F. Hernandez, Paul W. Armstrong, Gregg C. Fonarow, Adriaan A. Voors, Marco Metra, John J.V. McMurray, Javed Butler, Gretchen Heizer, Kenneth Dickstein, Barry M. Massie, Dan Atar, Richard W. Troughton, Stefan D. Anker, Robert M. Califf, Randall C. Starling, Christopher M. O’Connor	87
18	Clinical Effectiveness of Implantable Cardioverter-Defibrillators Among Medicare Beneficiaries With Heart Failure 2009 ·Circulation Heart Failure ·Adrian F. Hernandez, Gregg C. Fonarow, Bradley G. Hammill, Sana M. Al‐Khatib, Clyde W. Yancy, Christopher M. O’Connor, Kevin A. Schulman, Eric D. Peterson, Lesley H. Curtis	54
19	Influence of Coronary Artery Disease and Coronary Revascularization Status on Outcomes in Patients with Acute Heart Failure Syndromes: A report from OPTIMIZE-HF (Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure) 2008 ·European Journal of Heart Failure ·Joseph S. Rossi, James D. Flaherty, Gregg C. Fonarow, Eduardo Núñez, Wendy Gattis Stough, William T. Abraham, Nancy M. Albert, Barry Greenberg, Christopher M. O’Connor, Clyde W. Yancy, James B. Young, Charles J. Davidson, Mihai Gheorghiade	51
20	Acute Heart Failure Associated with High Admission Blood Pressure — A Distinct Vascular Disorder? 2006 ·European Journal of Heart Failure ·Olga Milo‐Cotter, Kirkwood F. Adams, Christopher M. O’Connor, Nir Uriel, Edo Kaluski, G. Michael Felker, Beth Davison Weatherley, Zvi Vered, Gad Cotter	37

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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