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  • Title: [Diagnosis of constrictive pericarditis and restrictive cardiomyopathy by pulsed Doppler echocardiography].
    Author: Vargas-Barrón J, Sánchez-Ugarte T, Santana-González A, Keirns C.
    Journal: Arch Inst Cardiol Mex; 1988; 58(6):539-42. PubMed ID: 3245724.
    Abstract:
    Characteristics of flow through atrioventricular valves were analyzed by pulsed Doppler echocardiography (PDE) in 7 patients with either constrictive pericarditis or restrictive cardiomyopathy and 10 controls to determine the value of this technique in their differentiation. All patients were admitted with systemic venous congestion and underwent right and left heart catheterization. PDE variables considered included peak flow velocity (PV), acceleration time, peak velocity of the atrial component (PVA), PVA/PV quotient, duration of early diastolic fillings, deceleration of early diastolic filling, duration of diastolic flow and mean temporal velocity. Ventricular filling differed between patients and controls in that the former group was characterized by higher PV's, lower PVA's, higher deceleration and lower PVA/PV quotient. When we compared both patient groups we found a significant tendency toward higher PV's, faster deceleration and lower PVA/PV quotient in constrictive pericarditis.
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