Left ventricular fluid dynamics in heart failure: echocardiographic measurement and utilities of vortex formation time
Why the study?
Does echocardiographic-derived vortex formation time (adapted) predict cardiac death and repeat hospitalization in patients with heart failure?
Population
162 subjects, comprising 32 normal control subjects and 130 patients hospitalized with heart failure.
Comparison
Echocardiographic measurement of vortex… vs Normal control subjects and stratification by…
Design
Cohort
Authors
Discussion
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Member takes
Implication
May support HF risk stratification; leaves open incremental value beyond standard parameters and requires prospective validation.
Structured PICO
Does echocardiographic-derived vortex formation time (adapted) predict cardiac death and repeat hospitalization in patients with heart failure?
P
Population
162 subjects, comprising 32 normal control subjects and 130 patients hospitalized with heart failure (91 with reduced ejection fraction [HFrEF] and 39 with preserved ejection fraction [HFpEF]).
I
Intervention
Echocardiographic measurement of vortex formation time (adapted) (VFTa).
C
Comparator
Normal control subjects (for validation) and stratification by VFTa values (e.g., <1.32 vs ≥1.32) for prognostic assessment.
O
Outcome
Composite clinical endpoint comprising cardiac death and repeat hospitalization for heart failure.composite
Echocardiographic-derived vortex formation time (adapted) is significantly reduced in heart failure patients, and a value <1.32 is a strong predictor of cardiac death and repeat hospitalization.
Cite This Study
Poh et al. (2011) studied this question.