Blood Pressure Response during Cardiopulmonary Exercise Testing in Heart Failure.

Published

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Il'giovine, ZJ; Solomon, N; Devore, AD; Wojdyla, D; Patel, CB; Rogers, JG

Published Date

  • July 2018

Published In

Volume / Issue

  • 50 / 7

Start / End Page

  • 1345 - 1349

PubMed ID

  • 29470280

Pubmed Central ID

  • 29470280

Electronic International Standard Serial Number (EISSN)

  • 1530-0315

International Standard Serial Number (ISSN)

  • 0195-9131

Digital Object Identifier (DOI)

  • 10.1249/mss.0000000000001587

Language

  • eng