Rapidly Enlarging Aortic Root Pseudoaneurysm in a Child With Endocarditis and Repaired Congenital Heart Disease.

A child with repaired double outlet right ventricle presented with Staphylococcus aureus bacteremia. Despite unsuspecting echocardiography on admission and clinical improvement on antibiotics, repeat routine echocardiography detected an aortic pseudoaneurysm, requiring a Ross-Konno operation. In repaired congenital heart defects with bacteremia, close echocardiographic surveillance is required to detect aortic pseudoaneurysm. (Level of Difficulty: Intermediate.).