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An unusual connection of inferior pulmonary veins in the left atrium via a common ostium: a cardiac computed tomographic angiography discovery before cryoballoon pulmonary vein isolation in atrial fibrillation
  1. Pascal Defaye,
  2. Adama Kane,
  3. Peggy Jacon
  1. Cardiac Arrhythmia Unit of Grenoble University Hospital, France
  1. Correspondence to Dr Pascal Defaye, Arrhythmia Unit, Cardiology Department, University Hospital, BP 217X, 38043 Grenoble Cedex 09, France; pdefaye{at}

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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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