Heart failure & cardiomyopathies

Renal Function and Natriuresis-Guided Diuretic Therapy – A Pre-Specified Analysis from the PUSH-AHF Trial

Eur J Heart FailPublished Secondary analysis of the PUSH-AHF randomised trial

Authors' conclusion

Natriuresis-guided diuretic treatment improved diuresis and natriuresis irrespective of baseline eGFR and occurrence of WRF, was effective even in patients with low eGFR, and the observed effect on eGFR was transient and not associated with worse clinical outcomes.

Study context

Population
Patients with acute heart failure (HF)
Participants
309 patients
Comparison
Natriuresis-guided diuretic therapy vs standard of care, by baseline estimated glomerular filtration rate (eGFR)
Primary endpoint
Interaction between randomised treatment, baseline eGFR and the dual primary outcome of PUSH-AHF: total natriuresis at 24 h and time to all-cause mortality or HF rehospitalization at 180 days
Methodological detailspre-specified analysis
  • Pre-specified analysis

Primary result

As reported in the abstract

Modification of treatment effect by baseline eGFR
Baseline eGFR did not significantly modify the treatment effect on natriuresis at 24 h
p for interaction = 0.730
Baseline eGFR significantly modified the effect on all-cause mortality and HF rehospitalization at 180 days; risk lower with lower eGFR in natriuresis-guided group
p for interaction = 0.017

Further findings

Median baseline eGFR (ml/min/1.73 m²)
53 (35-73)
eGFR <60 ml/min/1.73 m²
58%

Safety

ml/min/1.73 m²

OutcomeNatriuresis-guidedStandard of careP value
Change in eGFR · first 3 days−11.0−6.91P = 0.002
Change in eGFR · discharge−10.3−8.69P = 0.38

Worsening renal function (WRF) at 72 h

WRF more frequent with natriuresis-guided treatment, but not associated with worse clinical outcomes

Original publication

Renal Function and Natriuresis-Guided Diuretic Therapy – A Pre-Specified Analysis from the PUSH-AHF Trial. Eur J Heart Fail. Published 12 May 2024. doi:10.1002/ejhf.3228

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