Figure 1From: Effect of age on exercise capacity and cardiac reserve in patients with pulmonary atresia with intact ventricular septum after biventricular repairCorrelation between the patients’ age and cardiac work indices in response to the physical stress (A) VO2max, (B) O2-pulse. Correlation between the patients' age and biventricular SV response to the pharmacological stress; (C) LV-SV, (D) effective RV SV.Back to article page