Alicia Mecklai1, Haris Subačius2, Marvin A Konstam3, Mihai Gheorghiade2, Javed Butler4, Andrew P Ambrosy5, Stuart D Katz6. 1. Weill Cornell Medical College, New York, New York; New York University School of Medicine, New York, New York. 2. Northwestern University Feinberg School of Medicine, Chicago, Illinois. 3. The CardioVascular Center of Tufts Medical Center and Tufts Medical Center, Boston, Massachusetts. 4. Stony Brook School of Medicine, Stony Brook, New York. 5. Duke University Medical Center, Durham, North Carolina. 6. New York University School of Medicine, New York, New York. Electronic address: stuart.katz@nyumc.org.
Abstract
OBJECTIVES: The aim of this study was to characterize the association between decongestion therapy and 30-day outcomes in patients hospitalized for heart failure (HF). BACKGROUND: Loop diuretic agents are commonly prescribed for the treatment of symptomatic congestion in patients hospitalized for HF, but the association between loop diuretic agent dose response and post-discharge outcomes has not been well characterized. METHODS: Cox proportional hazards models were used to estimate the association among average loop diuretic agent dose, congestion status at discharge, and 30-day post-discharge all-cause mortality and HF rehospitalization in 3,037 subjects hospitalized with worsening HF enrolled in the EVEREST (Efficacy of Vasopressin Antagonism in Heart Failure: Outcome Study With Tolvaptan) study. RESULTS: In univariate analysis, subjects exposed to high-dose diuretic agents (≥160 mg/day) had greater risk for the combined outcome than subjects exposed to low-dose diuretic agents (18.9% vs. 10.0%; hazard ratio: 2.00; 95% confidence interval: 1.64 to 2.46; p < 0.0001). After adjustment for pre-specified covariates of disease severity, the association between diuretic agent dose and outcomes was not significant (hazard ratio: 1.11; 95% confidence interval: 0.89 to 1.38; p = 0.35). Of the 3,011 subjects with clinical assessments of volume status, 2,063 (69%) had little or no congestion at hospital discharge. Congestion status at hospital discharge did not modify the association between diuretic agent exposure and the combined endpoint (p for interaction = 0.84). CONCLUSIONS: Short-term diuretic agent exposure during hospital treatment for worsening HF was not an independent predictor of 30-day all-cause mortality and HF rehospitalization in multivariate analysis. Congestion status at discharge did not modify the association between diuretic agent dose and clinical outcomes.
OBJECTIVES: The aim of this study was to characterize the association between decongestion therapy and 30-day outcomes in patients hospitalized for heart failure (HF). BACKGROUND: Loop diuretic agents are commonly prescribed for the treatment of symptomatic congestion in patients hospitalized for HF, but the association between loop diuretic agent dose response and post-discharge outcomes has not been well characterized. METHODS: Cox proportional hazards models were used to estimate the association among average loop diuretic agent dose, congestion status at discharge, and 30-day post-discharge all-cause mortality and HF rehospitalization in 3,037 subjects hospitalized with worsening HF enrolled in the EVEREST (Efficacy of Vasopressin Antagonism in Heart Failure: Outcome Study With Tolvaptan) study. RESULTS: In univariate analysis, subjects exposed to high-dose diuretic agents (≥160 mg/day) had greater risk for the combined outcome than subjects exposed to low-dose diuretic agents (18.9% vs. 10.0%; hazard ratio: 2.00; 95% confidence interval: 1.64 to 2.46; p < 0.0001). After adjustment for pre-specified covariates of disease severity, the association between diuretic agent dose and outcomes was not significant (hazard ratio: 1.11; 95% confidence interval: 0.89 to 1.38; p = 0.35). Of the 3,011 subjects with clinical assessments of volume status, 2,063 (69%) had little or no congestion at hospital discharge. Congestion status at hospital discharge did not modify the association between diuretic agent exposure and the combined endpoint (p for interaction = 0.84). CONCLUSIONS: Short-term diuretic agent exposure during hospital treatment for worsening HF was not an independent predictor of 30-day all-cause mortality and HF rehospitalization in multivariate analysis. Congestion status at discharge did not modify the association between diuretic agent dose and clinical outcomes.
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