Avaliação do ventrículo direito nos pacientes com hipertensão pulmonar

摘要: The right ventricular ejection fraction (RVEF) is a surrogate marker in pulmonary hypertension (PH), but its measurement complicated and time consuming. TAPSE (Tricuspid Annular Plane Systolic Excursion) good index of RVEF, though it measures only the longitudinal component contraction. RVFAC (Right Ventricular Fractional Area Change) seems to be better RVEF because takes into account transversal components aim our study was evaluate performance according hemodynamic severity two groups patients with PH: arterial (PAH) chronic thromboembolicpulmonary (CTEPH).Methos: Sixty-two PAH CTEPH underwent heart catheterization cardiac MR 72-hour delay. left ventricle end diastolic areas (RVEDA, LVEDA), systolic area (RVESA) were measured four chamber view. (RVFAC=RVEDA–RVESA/RVEDA) RVEDA/LVEDA relationship werecalculated. diameter between (LV) free wall septum (dL-S) anterior posterior walls (dAP) LV eccentricity (EI) calculated (EI=dAP/dL-S). by using 6 mm RV short axis cines.Results: population had mean age 58 years female majority, most functional class III, 23 39 thromboembolic (CTEPH). weakly correlated variables afterload function. morestrongly (R2=0.65, p 8,5 WU (RVFAC: R2=0.51, 8,5WU an increased EI. There no differences relationships CETPH.Conclusion: than less severe more hemodynamics. In severity, difference theHAP or groups. possibly