CTICasesLeft atrial-to-left ventricular fistula post-ablation
Imaging findings
CTA of the chest shows an outpouching and direct communication/fistula between the left atrium and left ventricle near the mitral valve annulus, following a radiofrequency catheter ablation for SVT.
Key takeaways
Atrioventricular fistulas are very rare complications of RF catheter ablation. Thermal injury near the endocardial cushion/mitral annulus can create a shunt between the high-pressure LV and low-pressure LA.
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