Serial exercise performance in children with surgically corrected congenital aortic stenosis. Pediatr Cardiol 2003;24(4):319-24
Date
03/13/2003Pubmed ID
12632225DOI
10.1007/s00246-002-0281-6Scopus ID
2-s2.0-0041469741 (requires institutional sign-in at Scopus site) 12 CitationsAbstract
We examined serial exercise test performance in children with congenital aortic stenosis (AS) treated surgically compared to that of nonoperated children with mild to moderate AS. Maximal treadmill exercise data were assessed in 21 children 5.5 +/- 3.8 years after aortic valve (AO) surgery. Patients had undergone the Ross procedure (n = 6) or previous aortic valvotomy, balloon valvuloplasty, or neonatal aortic valvotomy (n = 15). Follow-up treadmill tests were conducted 3.7 +/- 2.8 years later. Data were compared to those of 19 nonoperated AS patients (mean gradient by echocardiogram <50 mmHg). These patients were exercised 3.6 +/- 3.2 years apart. Endurance time, heart rate, systemic blood pressure, and electrocardiogram were compared as repeated measures between tests and to age- and sex-matched normative data. Postsurgical children with AS had normal endurance times despite low peak heart rates on the initial test, and they maintained endurance over time. Nonoperated children with mean AO gradients <50 mmHg also had normal endurance times on the initial test but increased endurance over 3.6 years. Children with operated and nonoperated AS were able to reach or exceed normal endurance times, which may make it difficult to achieve compliance to imposed activity restrictions in this population.
Author List
Mitchell BM, Strasburger JF, Hubbard JE, Wessel HUAuthor
Janette F. Strasburger MD Professor in the Pediatrics department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAortic Valve Stenosis
Blood Pressure Determination
Child
Cohort Studies
Echocardiography
Electrocardiography
Exercise Test
Exercise Tolerance
Female
Heart Defects, Congenital
Heart Function Tests
Heart Rate
Hemodynamics
Humans
Male
Physical Endurance
Probability
Prospective Studies
Reference Values
Sensitivity and Specificity
Severity of Illness Index
Time Factors
