Right Ventricular Outflow Tract Growth in Infants With Palliated Tetralogy of Fallot

Significant absolute growth of the PV, MPA, RPA, and LPA occurs after an mBTS in neonates with TOF/PS. Branch PA size normalizes before complete repair. In one-third of patients with hypoplastic PVs, absolute growth after an mBTS may have facilitated valve-sparing repair.