Heart failure & cardiomyopathies

Parameters associated with improvement of systolic function in patients with heart failure

HeartPublished Retrospective cohort study

Authors' conclusion

In this outpatient HFrEF cohort, most patients improved systolic function. Heart failure aetiology, comorbidities and echocardiographic measures of heart structure and function were significantly, independently associated with future LVEF improvement. Greater LVEF improvement was significantly associated with lower mortality.

Study context

Population
Outpatients with heart failure with reduced ejection fraction (HFrEF) at the heart failure clinic at Gentofte Hospital
Participants
686 outpatients
Exposure
Parameters associated with left ventricular ejection fraction (LVEF) improvement; survival by LVEF improvement
  • Δ LVEF >0%n = 559
Outcome
Parameters associated with LVEF improvement, and survival according to LVEF improvement
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

Baseline parameters associated with LVEF improvement (multivariable linear regression, standardised β-coef)

Δ LVEF >0%

81.5%

559

Less impaired global longitudinal strain: β-coef 0.25
P < 0.001
Higher tricuspid annular plane systolic excursion: β-coef 0.09
P = 0.018
Smaller LV internal dimension in diastole: β-coef −0.15
P = 0.011
Lower E-wave/A-wave ratio: β-coef −0.13
P = 0.003
Higher heart rate: β-coef 0.18
P < 0.001
Absence of ischaemic cardiomyopathy: β-coef −0.11
P = 0.010
Absence of DM: β-coef −0.081
P = 0.033

Observational data: associations, not effects.

Further findings

Mortality incidence rate by LVEF improvement

P = 0.012

OutcomeHR (95% CI)P value
Mortality by tertile of LVEF improvementTertile 1vs tertile 33.23 (1.39–7.51)P = 0.006

Original publication

Parameters associated with improvement of systolic function in patients with heart failure. Heart. Published 9 July 2023. doi:10.1136/heartjnl-2023-322371

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