CTICasesPersistent Aorto-Caval Fistula Post-Trans-Caval TAVI
Imaging findings
Early opacification of the inferior vena cava (IVC) at the level of the aortic entry, synchronous with aortic opacification, indicates a persistent fistula. Some reflux of contrast through the renal veins is also noted.
Key takeaways
A persistent aorto-caval fistula is a possible complication following trans-caval transcatheter aortic valve implantation (TAVI). Imaging demonstrates early IVC opacification and reflux of contrast into renal veins, confirming the connection between the aorta and IVC.
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