Heart failure & cardiomyopathiesRandomised controlled trial

Liberal fluid intake versus fluid restriction in chronic heart failure: a randomized clinical trial

Nat MedPublished

  • Randomised controlled trial
  • multicentre
  • open-label

Authors' conclusion

These findings question the benefit of fluid restriction in chronic heart failure.

Study context

Population
Outpatients with chronic HF67.3% male
Participants
504 outpatients
Comparison
Liberal fluid intake vs fluid restriction
Primary endpoint
Health status by KCCQ Overall Summary Score (Kansas City Cardiomyopathy Questionnaire Overall Summary Score (KCCQ-OSS))
Follow-up
3 months

Primary result

KCCQ-OSS

Mean difference

2.17

95% CI −0.06 to 4.39

P = 0.06

By group

Liberal fluid intake

74.0

Fluid restriction

72.2

Liberal fluid intake vs Fluid restriction
mean difference 2.17 (95% CI −0.06 to 4.39); P = 0.06

As reported in the abstract

Secondary outcomes

Thirst distress

Thirst distress higher with fluid restriction

Safety

Safety events

No differences between the two groups

Original publication

Liberal fluid intake versus fluid restriction in chronic heart failure: a randomized clinical trial. Nat Med. Published 30 March 2025. doi:10.1038/s41591-025-03628-4

Summarised from the published abstract; every number is checked against it