CTICasesPulmonary Vein Stenosis and Infarction post Catheter Ablation
Imaging findings
CT chest shows dense ground-glass opacity and consolidation confined to the left upper lobe, with associated septal thickening. The left superior pulmonary vein is completely occluded at its ostium, and catheterization shows a dead end, which was successfully treated with pulmonary vein stenting.
Key takeaways
Pulmonary vein stenosis or occlusion is a known iatrogenic complication of radiofrequency catheter ablation for atrial fibrillation. Occlusion leads to pulmonary venous congestion, edema, and sometimes venous infarction, which radiographically mimics localized pneumonia. Treatment involves angioplasty and stenting.
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