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The Fibrosis-4 score is associated with long-term mortality in different phenotypes of acute heart failure



Background:

Fibrosis-4 score (FIB4) was a non-invasive surrogate to estimate the amount of liver scarring in chronic hepatitis. Considering the presence of increased central venous pressure and congestive hepatopathy in patients with decompensated heart failure, we therefore investigated the prognostic values of FIB4 in acute heart failure (AHF) patients.


Method:

Patients hospitalized primarily for HF were drawn from an intramural registry. FIB4 was calculated according to age, aspartate aminotransferase, alanine aminotransferase, and platelet count. All-cause mortality up to 5 years after discharge was obtained by linking to the National Death Registry.


Results:

Among a total of 1854 participants, 940 patients died during a mean follow-up of 28.3 ± 21.8 months. FIB4 score was related to mortality and the composite of cardiovascular death or HF rehospitalization, independent of age, sex, left ventricular ejection fraction, left atrial dimension, sodium and hemoglobin levels, estimated glomerular filtration rate, comorbidities, and medications [hazard ratio and 95% confidence interval of mortality: 1.009 (1.002-1.015), and the composite of cardiovascular death or HF hospitalization: 1.020 (1.010-1.031)]. The prognostic value of FIB4 was predominantly in the subjects with heart failure and preserved or mildly reduced ejection fraction (HFpEF, HFmrEF), or coronary artery disease (CAD) than the counterparts [interaction p-value < 0.001, and 0.004, respectively].


Conclusions:

FIB4 was an independent predictor of survival in AHF patients, irrespective of the phenotypes of HF. The higher predictive value of mortality of FIB4 was observed in the subjects with HFpEF, HFmrEF, or CAD.


Keywords:

FIB4; HFpEF; acute heart failure; fibrosis-4 score; liver stiffness.



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