4.11 Left Ventricular Remodelling Conditions Left Atrial Volume and Function In Hypertensive Patients? Evaluation in RT3
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Heart 4.11 Left Ventricular Remodelling Conditions Left Atrial Volume and Function In Hypertensive Patients? Evaluation in RT3D Echocardiography S. Del Colle,1 A. Milan,1 C. Caserta,1 D. Naso,1 C. Magnino,1 E. Puglisi,1 F. Tosello,1 S. Monticone,1 F. Veglio,1 S. De Castro2 ` di Torino, To Torino; (2) (1) Centro Ipertensione, Ospedale Molinette, Universita ` La Sapienza Roma, Rome, It Italy Policlinico Umberto I, Universita Introduction: Left atrial volume [LAV] is a prognostic factor for the cardiovascular risk stratification. Recently, Real Time 3D Echocardiography [RT3DE] studied the relationship between atrial emptying volumes and ventricular remodelling. Objective: To assess the association among atrial passive and active emptying volumes, ventricular remodelling and diastolic dysfunction, in a group of hypertensive patients. Methods: Sixty-eight hypertensive patients [HP] (mean age 63.29±14.79 years, male 51%) and sixty voluntary healthy subjects [HS] (mean age 45.19±13.79 years, male 58%) underwent an 2D and 3D echocardiography. 2D ventricular and atrial diameters and LAV, assessed by RT3DE, were analysed. Quantitative analysis of LAV (Vmax, Vp, Vmin) were calculated with specific software (TomTec, Germany). The following LA emptying functions were calculated: LA passive emptying volume, LA active emptying volume, total emptying volume and their reciprocal emptying fractions. Results: Atrial volumes are higher in HP than in HS. Active emptying fraction is augmented in HP and increases significantly with the left ventricle mass (p>0.001) and the degree of diastolic dysfunction (p=0.01). We correlated, with LAVmax3D, bidimensional values of left atrial diameters, area and volume: r values for anterior-posterior diameter, medial-lateral diameter, superior-inferior diameter, 2D LA area, and 2D LAV were 0.64, 0.55, 0.40, 0.48, and 0.69, respectively (p
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