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Results for “Ventricular Outflow Obstruction”

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At least 163 records · Page 9Linked to original sources
PubMed2006

Aortic atresia or severe left ventricular outflow tract obstruction with ventricular septal defect: results of primary biventricular repair in neonates.

BACKGROUND: Aortic atresia or severe aortic stenosis and left ventricular outflow tract obstruction is a frequent component of complex congenital heart disease. Aortic atresia or severe aortic stenosis and left ventricular outflow tract obstruction with two adequate ventricles is sometimes treated by Norwood palliation followed by late biventricular repair. We reviewed our experience with primary biventricular repair in this group of neonates. METHODS: Retrospective review identified 17 neonates (10 males) with aortic atresia or severe left ventricular outflow tract obstruction with ventricular septal defect and an adequate left ventricle undergoing primary biventricular repair between 1986 and 2002. Mean age was 7.7 +/- 2.9 days, weight 3.3 +/- 0.7 kg, and body surface area 0.21 +/- 0.04 kg/m2. Associated anomalies included arch hypoplasia, 7 (41%); aortic atresia, 7 (41%); and coarctation, 5 (29%). Results are reported as mean +/- standard deviation. RESULTS: Median follow-up was 6 years (range, 1 to 17.7 years). Three of the 17 (18%) died within 30 days. There were no deaths in this series since 1992. Nine patients (38.9%) required one reoperation, 7 of which were for conduit stenosis, 1 for left ventricular outflow tract obstruction, and 1 for residual ventricular septal defect with left ventricle-to-right atrium shunt. Freedom from death at 10 years was 82% by Kaplan-Meier estimate. CONCLUSIONS: Excellent long-term survival can be achieved by primary biventricular repair as corroborated by our survival rate of 82%. Primary biventricular repair is an effective operation for aortic atresia and severe left ventricular outflow tract obstruction with adequate sized left ventricle that avoids interstage attrition associated with Norwood palliation and is our procedure of choice.

Aortic Valve↗
PubMed1998

Can echocardiography predict the presence or absence of endocardial fibroelastosis in infants <1 year of age with left ventricular outflow obstruction?

This study assesses the use of echocardiography in detecting endocardial fibroelastosis in 32 infants with obstructive left-sided lesions. The data demonstrate that neither endocardial echo-brightness nor geometric variables of the left ventricle allow for accurate prediction of the presence of endocardial fibroelastosis.

Echocardiography, Doppler↗
PubMed1985

Hypoplasia of the intrapulmonary arteries in children with right ventricular outflow tract obstruction, ventricular septal defect, and major aortopulmonary collateral arteries.

Postmortem injection studies have been carried out on the pulmonary vasculature of four children dying with pulmonary atresia and ventricular septal defect or severe tetralogy of Fallot with major aortopulmonary collateral arteries, in which nearly all bronchopulmonary segments had more than one source of blood supply. Despite regional variations in the source of blood supply, there was remarkable uniformity of arterial size and number within the respiratory unit throughout each case. In all cases, there was a normal number of arterial pathways, but both pre- and intraacinar arteries were considerably smaller than normal. The need for early operative intervention to ensure growth of pre- and particularly intraacinar arteries is emphasized.

Aorta↗