Biventricular Response After Pulmonary Valve Replacement for Right Ventricular Outflow Tract Dysfunction

Abstract

A relatively aggressive PVR policy (end diastolic volume <150 mL/m(2)) leads to normalization of right ventricular volumes, improvement in biventricular function, and submaximal exercise capacity. Normalization of ventilatory response to carbon dioxide production is most likely to occur when surgery is performed at an age </=17.5 years. This is also associated with a better left ventricular filling and systolic function after surgery.