Key result
Mitral E/A ratio strongly correlates with PWP and predicts elevated pressures with 100% sensitivity.
Why the study?
Can mitral flow velocity variables accurately estimate mean pulmonary wedge pressure in patients with recent anterior myocardial infarction and left ventricular dysfunction?
Population
50 patients with recent Q-wave anterior myocardial infarction and a reduced ejection fraction (<40%)
Design
Cross-sectional
Authors
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May support non-invasive PWP estimation post-anterior MI with LV dysfunction; leaves open prospective validation before clinical adoption.
Cross-Sectional (n=50)
Can mitral flow velocity variables accurately estimate mean pulmonary wedge pressure in patients with recent anterior myocardial infarction and left ventricular dysfunction?
Effect estimate: r = 0.83
Mitral flow velocity-derived variables, particularly the E/A ratio, provide a reliable non-invasive method for estimating markedly increased pulmonary wedge pressure in patients with recent anterior MI and LV dysfunction.
Pozzoli et al. (1992) conducted a cross-sectional in Recent Q-wave anterior infarction and left ventricular dysfunction (n=50). Mitral flow velocity (E/A ratio) vs. Right heart catheterization (PWP) was evaluated on Correlation between E/A ratio and mean pulmonary wedge pressure (PWP) (r = 0.83). The mitral E/A ratio correlated significantly with pulmonary wedge pressure (r=0.83), and an E/A ratio ≥1 predicted a PWP >20 mmHg with 100% sensitivity and 86% specificity.
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