CTICasesHomograft Conduit Rupture during RVOT Balloon Valvuloplasty
Imaging findings
CT chest obtained during a cardiac intervention shows extravasation of contrast material from a ruptured right ventricular outflow tract (RVOT) homograft conduit, with hemorrhage in the left lung and a left hemothorax.
Key takeaways
Balloon dilation of stenotic RVOT conduits in patients with repaired congenital heart disease (e.g., Tetralogy of Fallot) carries a risk of conduit rupture. In patients with prior surgeries, extensive mediastinal adhesions can contain the rupture, permitting successful salvage with covered stent placement and valve replacement.
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