Comparison of the cardiac output and stroke volume response to upright exercise in children with valvular and subvalvular aortic stenosis

Cardiac output and stroke volume were evaluated in 17 children (mean age 11.5 ± 3 years) with discrete, membranous subvalvular (Group I, n = 7) and valvular (Group II, n = 10) aortic stenosis during submaximal and maximal (>75% predicted maximal oxygen consumption) upright cycle ergometry. Patien...

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Veröffentlicht in:Journal of the American College of Cardiology 1988-03, Vol.11 (3), p.651-658
Hauptverfasser: Cyran, Stephen E., James, Frederick W., Daniels, Stephen, Mays, Wayne, Shukla, Rakesh, Kaplan, Samuel
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Sprache:eng
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Zusammenfassung:Cardiac output and stroke volume were evaluated in 17 children (mean age 11.5 ± 3 years) with discrete, membranous subvalvular (Group I, n = 7) and valvular (Group II, n = 10) aortic stenosis during submaximal and maximal (>75% predicted maximal oxygen consumption) upright cycle ergometry. Patients with valvular aortic stenosis were further subdivided on the basis of their aortic valve gradient at rest determined by cardiac catheterization (Group IIA, gradient
ISSN:0735-1097
1558-3597
DOI:10.1016/0735-1097(88)91545-8