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Using V̇e/V̇co 2 slope is useful for children with congenital heart disease. V̇e/V̇co 2 slope is sensitive to pulmonary blood flow maldistribution during exercise, this concerns congenital heart disease with pulmonary regurgitation, tricuspid regurgitation, right ventricular hypertension, and right ventricle outflow tract obstacle. V̇e/V̇co 2 slope is a good parameter to follow single ventricles and right heart residual lesions (tetralogy of Fallot; pulmonary atresia; truncus arteriosus…).
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Gavotto et al. (2020) studied this question.
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