Effect of age on exercise capacity and cardiac reserve in patients with pulmonary atresia with intact ventricular septum after biventricular repair

Biventricular surgical repair is considered to be the optimal treatment option as it provides satisfactory results in terms of survival and clinical outcome during the early follow up period. Methods Ten PAIVS patients after biventricular repair, median age 12 years (range 9 - 42 years), underwent a cardiopulmonary exercise test, dobutamine stress magnetic resonance imaging (MRI) and delayed contrast enhancement (DCE) MRI.