[Quantification of pulmonary arterial hypertension by phonocardiography and M-mode echocardiography in children with congenital cardiopathies].
We studied 20 children with congenital heart disease using Echo-Phonocardiographic techniques to determine the presence and magnitude of pulmonary arterial hypertension. The results were compared with those obtained by catheterization. There was a significant correlation between the pulmonary arterial systolic pressure (PSP) estimated from the right ventricular isovolumetric relaxation period and the PSP from the catheterization (r = 0.92). The ratio preejection period /right ventricular ejection time (PEP/RVET) identified the patients (PEP/RVET greater than or equal to 0.30) with a PSP mean value = 64.5 mmHg (p less than 0.01). The presence of a systolic notch on the pulmonary valve echogram distinguished the group with a PSP mean value = 60 mmHg (p less than 0.005). There was a poor correlation between the depth of the "a" wave and the E-F slope of the pulmonary valve echogram and the catheterization PSP (r = -0.50 and r = -0.40, respectively). The interval PR from the electrocardiogram minus the distance AC from the tricuspid valve echogram had a poor correlation with the right ventricular end diastolic pressure (r = 0.57). We conclude that there are some Echo-Phonocardiographic signs which are very useful in the diagnosis and measurement of pulmonary arterial hypertension in children with congenital heart disease.
Trejo-Gutiérrez
J F
JF
Ordóñez-Mora
A
A
Eng-Ceceña
L
L
Vargas-Barrón
J
J
D000293:Adolescent; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications*; D006439:Hemodynamics; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010701:Phonocardiography
Cuantificación de la hipertensión arterial pulmonar por fono y ecocardiografía modo M en niños con cardiopatía congénita.