Short-term survival by treatment among patients hospitalized with acute heart failure: the global ALARM-HF registry using propensity scoring methods
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To date, treatment with intravenous (IV) agents such as vasodilators, diuretics, and inotropes has shown marginal or mixed benefits in acute heart failure (AHF) trials. The aim of this study was to identify the risks and benefits of IV drugs in patients hospitalized with acute decompensated heart failure.
The AHF global survey of standard treatment (ALARM-HF) reviewed in-hospital treatments in eight countries. The present study was a post hoc analysis of ALARM-HF data in which propensity scoring was used to identify groups of patients who differed by treatment but had the same multivariate distribution of covariates. Such propensity matching allowed estimations of the effect of specific treatments on the outcome of in-hospital mortality.
Unadjusted analysis showed a lower in-hospital mortality rate in AHF patients receiving “diuretics + vasodilators” (n = 1,805) compared to those receiving “diuretics alone” (n = 2,362) (7.6 vs. 14.2%, p < 0.0001). Propensity-based matching (n = 1,007 matched pairs) confirmed the lower mortality of AHF patients receiving diuretics + vasodilators: 7.8 versus 11.0% (p = 0.016). Unadjusted analysis showed a much greater in-hospital mortality rate in patients receiving IV inotropes (25.9%) compared to those who did not (5.2%) (p < 0.0001). Propensity-based matching (n = 954 pairs) confirmed that IV catecholamine use was associated with 1.5-fold increase for dopamine or dobutamine use and a >2.5-fold increase for norepinephrine or epinephrine use.
In terms of in-hospital survival, a vasodilator in combination with a diuretic fared better than treatment with only a diuretic. Catecholamine inotropes should be used cautiously as it has been seen that they actually increase the risk for in-hospital mortality.
KeywordsAcute heart failure ALARM-HF data Intravenous agents In-hospital survival
Acute heart failure
Systolic blood pressure
Conflict of interest
AM, JP, FVB, JFD and FF received an honorarium from Abbott for lectures and/or consulting. Abbott funded the ALARM-HF survey; data were acquired by IMS. Analyses were performed by the Département de Biostatistique et Informatique Médicale, Hôpital Saint-Louis, APHP, Université Paris 7, INSERM—UMR-S 717, Paris France by RP and EG.
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