Echocardiographic assessment of the relation between left ventricular wall and cavity dimensions and peak systolic pressure in children with aortic stenosis.
Am J Cardiol
; 40(5): 775-80, 1977 Nov.
Article
em En
| MEDLINE
| ID: mdl-920614
ABSTRACT
Echocardiographic measurements of the left ventricular end diastolic minor axis and posterior and septal wall thickness were obtained in 19 children with congenital aortic stenosis with left ventricular peak systolic pressures ranging from 110 to 225 mm Hg at cardiac catheterization. From these measurements were derived (1) the left ventricular peak circumferential wall stress, (2)the end-diastolic h/r ratio (that is, mean of septal and posterior wall thickness (h) to minor semiaxis (r) ratio), and (3) the LVM/LVV ratio (that is, left ventricular mass (LVM) to left ventricular end-diastolic volume (LVV) ratio). The peak stress was found to be within the normal range and independent of the left ventricular peak systolic pressure. The end-diastolic h/r and LVM/LVV ratios had highly significant linear relations to the left ventricular peak systolic pressure. It is concluded that these easily determined echocardiographic measurements provide a useful noninvasive means of assessing left ventricular peak systolic pressure in patients with aortic stenosis without myocardial decompensation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estenose da Valva Aórtica
/
Contração Miocárdica
Tipo de estudo:
Diagnostic_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Revista:
Am J Cardiol
Ano de publicação:
1977
Tipo de documento:
Article