Heart failure & cardiomyopathies

Adverse Outcomes Associated With Interleukin-6 in Patients Recently Hospitalized for Heart Failure With Preserved Ejection Fraction

Circ Heart FailPublished Prospective cohort study

Authors' conclusion

In patients recently hospitalized with heart failure with preserved ejection fraction, IL-6 is an independent predictor of all-cause mortality, cardiovascular death, and sHFH after adjustment for risk factors including BNP.

Study context

Population
Patients recently hospitalized with HFpEF
Participants
286 participants
Exposure
IL-6 tertiles
Outcome
All-cause death, CV death and subsequent HF hospitalization (sHFH)

Main finding

As reported in the abstract

All-cause death, CV death, sHFH per log unit increase in IL-6 (adjusted)
IL-6, per log unit increaseHazard ratio (CI)
All-cause death; adjusted
1.46(1.17–1.81)
CV death; adjusted
1.40(1.10–1.77)
sHFH; adjusted
1.24(1.01–1.51)

Per log unit increase, as printed

All-cause and CV death rates remained higher in T3 vs T1 after adjustment
P < 0.001

Observational data: associations, not effects.

Further findings

OutcomeT1T3
Characteristics, T3 vs T1Value = male35%56%
Creatinine101±36 μmol/L117±45 μmol/L
hsCRP2.3[1.1-4.2] mg/L11.6 [4.9-26.6]mg/L

hsCRP per log unit increase

Associated with higher risk of CV death and all-cause death before and after adjustment; not associated with subsequent heart failure hospitalization (sHFH)

Original publication

Adverse Outcomes Associated With Interleukin-6 in Patients Recently Hospitalized for Heart Failure With Preserved Ejection Fraction. Circ Heart Fail. Published 10 March 2023. doi:10.1161/circheartfailure.122.010051

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