Blood Pressure Response during Cardiopulmonary Exercise Testing in Heart Failure.

Abstract

Introduction

The prognostic value of peak V˙O2 and V˙E/V˙CO2 slope measured during cardiopulmonary exercise (CPX) testing has been well established in patients with advanced heart failure, but blood pressure response to exercise is less well characterized.

Methods

We retrospectively studied 151 outpatients who underwent CPX testing as part of an advanced heart failure evaluation. The outcome of interest was failure of medical management, defined by death, cardiac transplantation, or left ventricular assist device placement. Patients were stratified into tertiles by change in systolic blood pressure (SBP) (<13, 13-26, and ≥27 mm Hg) during exercise.

Results

Patients in the lowest tertile had the lowest peak V˙O2 (10.2 vs 10.6 vs 13.6 mL·kg·min, P = <0.001), the highest V˙E/V˙CO2 slope (42.8 vs 42.1 vs 36.3, P = 0.030), the shortest mean exercise time (5.1 vs 6.0 vs 7.0 min, P = <0.001), and the highest probability of failure of medical management at 1.5 yr (0.69 vs 0.41 vs 0.34, P = 0.011). After multivariate adjustment, increased SBP <20 mm Hg during exercise was associated with a lower hazard of medical management failure (hazard ratio = 0.96, 95% confidence interval [CI] = 0.934-0.987), whereas SBP increases >20 mm Hg were associated with an increased hazard (hazard ratio = 1.046, 95% CI = 1.018-1.075).

Conclusion

In conclusion, changes in SBP during CPX testing provide additional prognostic information above standard clinical variables. The peculiar increase in risk noted in those with a rise in SBP >20 mm Hg is less clear and needs to be investigated further.

Department

Description

Provenance

Citation

Published Version (Please cite this version)

10.1249/mss.0000000000001587

Publication Info

Il'giovine, Zachary J, Nicole Solomon, Adam D Devore, Daniel Wojdyla, Chetan B Patel and Joseph G Rogers (2018). Blood Pressure Response during Cardiopulmonary Exercise Testing in Heart Failure. Medicine and science in sports and exercise, 50(7). pp. 1345–1349. 10.1249/mss.0000000000001587 Retrieved from https://hdl.handle.net/10161/31140.

This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.

Scholars@Duke

Solomon

Nicole Solomon

Biostatistician, Senior
DeVore

Adam David DeVore

Associate Professor of Medicine

Adam D. DeVore, MD, MHS

Dr. DeVore is a cardiologist and Associate Professor of Medicine in the Department of Medicine, Division of Cardiology, at Duke University School of Medicine. His clinical interests include caring for patients and families with heart failure, including those with left ventricular assist devices and heart transplants. He is involved in and leads multiple large studies of patients with heart failure at both Duke University Medical Center and the Duke Clinical Research Institute. He currently serves as the medical director of the Duke Heart Transplant program.

He attended medical school at the University of Chicago Pritzker School of Medicine and completed internal medicine residency at Brigham and Women’s Hospital. He then pursued cardiology training at Duke University and solidified his interests in clinical research and heart failure. He completed a research fellowship at the Duke Clinical Research Institute and a Masters of Health Sciences in Clinical Research before completing an advanced heart failure fellowship at Duke University.

The overarching goals of his research are to advance the current understanding of heart failure through clinical trials as well as develop an evidence base for implementation strategies that addresses the gap between heart failure trial results and clinical practice. For example, he has served on the Steering Committees for large clinical trials, including PIONEER-HF and SPIRRIT-HFpEF. Dr. DeVore also published the first clinical trial conducted within the American Heart Association’s Get With The Guidelines-Heart Failure program, a registry-based cluster randomized trial of quality improvement interventions. He was also the principal investigator for CONNECT-HF, a large-scale, pragmatic, cluster-randomized trial at 161 sites in the US evaluating heart failure quality improvement initiatives. Outside of his work on heart failure, Dr. DeVore is  married with 4 children and spends his time corralling them all and coaching youth baseball.

 

 

Patel

Chetan B. Patel

Associate Professor of Medicine

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