Relation between age at surgery and regression of right ventricular hypertrophy in tetralogy of Fallot

Abstract
Pre- and postoperative echocardiographic right ventricular wall thickness (RVW), transverse dimension (RVD), and their ratio (W/D) were measured from subcostal views in 29 patients with Tetralogy of Fallot (TOF) in order to assess whether primary reparative surgery without prior palliative shunts in early infancy results in significantly faster regression of RV hypertrophy than repair later in life.