During a pulmonary vein isolation procedure to treat atrial fibrillation, a drop in blood pressure occurred and cardiac tamponade was diagnosed with echocardiography.The cardiac tamponade was successfully treated by pericardiocentesis.The physician believes the cause of the cardiac tamponade was an electrophysiology catheter and sheath, made by a different manufacturer, which were used to check for potentials in the right superior pulmonary vein.However, the physician could not exclude the deflectable sheath as a possible cause of the cardiac tamponade.
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