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A 72-year-old man was referred for cryoballoon pulmonary vein (PV) isolation. He had a history of paroxysmal symptomatic atrial fibrillation refractory to oral d,l sotalol 320 mg/day.
A cardiac computed tomographic angiography (CTA) to evaluate left atrium and PV anatomy was performed prior to the ablation procedure. The CTA revealed an unusual pulmonary venous anomaly consisting of a common ostium of …
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