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Pediatr Cardiol ; 33(5): 797-801, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22349730

ABSTRACT

Adult studies suggest a better functional outcome after aortic valve replacement with a pulmonary autograft compared with mechanical or homograft valves. Little is known about functional results after Ross surgery in growing children. This study reports formal exercise stress echocardiographic data from 26 pediatric Ross patients. A retrospective cohort study analyzed stress echocardiographic data of patients who underwent Ross surgery as a child (<17 years old). All patients were operated by a single surgeon and underwent a Bruce protocol stress echocardiogram on the treadmill. Twenty-six patients (4 girls) were 9.3 ± 5.0 years at surgery and 14.9 ± 3.5 years (range 6.6-19.7 years) at follow-up. Mean follow-up was 5.4 ± 3.7 years (median 4.2). All were asymptomatic. The exercise time was normal in 87% of cases at 12.8 ± 2.5 min. On stress echocardiography, the mean right-ventricular outflow tract (RVOT) gradient increased from 38 ± 22 mmHg at rest to 82 ± 33 mmHg after exercise, but this did not correlate with exercise times. Stress echocardiography is useful in evaluating patients after childhood Ross surgery for aortic valve disease. In this pediatric cohort, most patients achieved normal exercise capacity. The presence of mild or moderate RVOT obstruction had no significant impact on exercise capacity.


Subject(s)
Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Echocardiography, Stress , Heart Valve Diseases/diagnostic imaging , Heart Valve Diseases/surgery , Heart Valve Prosthesis Implantation/methods , Heart Valve Prosthesis , Pulmonary Valve/diagnostic imaging , Pulmonary Valve/surgery , Adolescent , Child , Exercise Tolerance , Female , Humans , Linear Models , Male , Pulmonary Valve/transplantation , Retrospective Studies , Treatment Outcome , Young Adult
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