Loop diuretic adjustments in patients with chronic heart failure: Insights from HF-ACTION.

Published

Journal Article

BACKGROUND: The relationship between diuretic use or change in diuretic use and outcomes in chronic heart failure (HF) remains poorly defined. We evaluated the association between diuretic use and changes in health status, exercise capacity, and clinical events in a large randomized trial of subjects with HF. METHODS: HF-ACTION randomized 2,331 outpatients with HF and ejection fraction ≤35% to aerobic exercise training versus usual care. We grouped patients according to loop diuretic use from baseline through 6 months: continued use, never use, initiated, and discontinued. The association between diuretic use and changes in health status, exercise capacity, and clinical outcomes (all-cause mortality/hospitalization, cardiovascular mortality, and HF hospitalization) through 12 months was assessed using Cox proportional hazards models and generalized linear regression models, respectively. RESULTS: A total of 2,004 (86%) patients had complete data on diuretic use. There was no association between diuretic status and Kansas City Cardiomyopathy Questionnaire, 6-minute walk distance, or peak Vo2 in adjusted analyses (all P > .05). A dose increase was associated with decrease in 6-minute walk distance (-4.25 m, SE 1.12 m, P < .001) and change in Kansas City Cardiomyopathy Questionnaire overall score (-0.56 m, SE 0.24 m, P = .02). There were no between-group differences for all-cause death or hospitalization comparing continuous use versus never use (adjusted HR 0.91; 95% CI 0.72-1.15; P = .432). CONCLUSIONS: The initiation or discontinuation of diuretics over a 6-month time frame was not associated with a difference in mortality, hospitalizations, exercise, or health status outcomes, but a dose increase in HF patients was associated with worse exercise and health status outcomes.

Full Text

Duke Authors

Cited Authors

  • Fudim, M; O'Connor, CM; Mulder, H; Coles, A; Bhatt, AS; Ambrosy, AP; Kraus, WE; Piña, IL; Whellan, DJ; Mentz, RJ

Published Date

  • November 2018

Published In

Volume / Issue

  • 205 /

Start / End Page

  • 133 - 141

PubMed ID

  • 30158057

Pubmed Central ID

  • 30158057

Electronic International Standard Serial Number (EISSN)

  • 1097-6744

Digital Object Identifier (DOI)

  • 10.1016/j.ahj.2018.06.017

Language

  • eng

Conference Location

  • United States