Key result
Exercise echocardiography identified isolated exercise-induced HFNEF in 20% of patients with HFNEF, with mitral annular systolic velocity serving as an independent predictor of the diagnosis.
Why the study?
Does exercise echocardiography help diagnose heart failure with normal ejection fraction in patients with exertional dyspnoea?
Population
84 patients with exertional dyspnoea and normal left ventricular ejection fraction, and 14 healthy controls.
Comparison
Exercise echocardiography, spirometry, and… vs Healthy controls and patients without HFNEF
Design
Cross-sectional
Authors
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May aid detection of exercise-induced HFNEF; leaves open whether it changes management or outcomes.
Cross-Sectional (n=98)
Does exercise echocardiography help diagnose heart failure with normal ejection fraction in patients with exertional dyspnoea?
Exercise echocardiography, particularly the measurement of peak mitral annular systolic velocity (Sa), identifies a significant proportion of patients with heart failure with normal ejection fraction who only exhibit abnormalities during exercise.
Meluzı́n et al. (2011) conducted a cross-sectional in Exertional dyspnoea with normal left ventricular ejection fraction (n=98). Exercise echocardiography vs. Healthy controls / Patients without HFNEF was evaluated on Prevalence of isolated exercise-induced HFNEF and predictors of HFNEF. Exercise echocardiography identified isolated exercise-induced HFNEF in 20% of patients with HFNEF, with mitral annular systolic velocity serving as an independent predictor of the diagnosis.
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