ASSESSMENT OF RIGHT VENTRICULAR FUNCTION IN ACUTE …
ASSESSMENT OF RIGHT VENTRICULAR FUNCTION IN ACUTE COR PULMONALE BY STRAIN DOPPLER ECHOCARDIOGRAPHY
A. Vitarelli, Y. Conde, S. D'Orazio, S. Stellato, G. Continanza, L. Capotosto, O. Dettori, C.Terzano
La Sapienza University, Rome, Italy
Background: Right ventricular (RV) involvement in acute cor pulmonale (ACP) is usually associated with hemodynamically significant pulmonary embolism. Assessment of RV function in ACP patients using tissue Doppler imaging (TDI) and strain rate imaging (SRI) is not extensively studied.
Methods: Seventeen patients with acute ACP and without severe hemodynamic sequelae were studied by echocardiography within one day after admission. Seventeen healthy subjects served as controls. Right ventricular ejection fraction (EF), fractional shortening (FS), and tricuspid flow filling parameters (E/A ratio, DT) were determined. Velocity and strain traces from right ventricular free wall at 3 levels (basal, mid cavity, and apical) were processed in the apical 4-chamber view. Systolic (Sw) and diastolic (Ew, Aw) TDI values, peak systolic strain and systolic and diastolic strain rate (SR) values were determined.
Results: Ew velocities and Ew /Aw ratios were lower in patients than in controls (p ................
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