Potential complications of catheter ablation:
(1) damage to the mitral valve
(2) acute occlusion of a coronary artery
(3) acute thromboembolism with stroke
(4) air embolism
(5) stenosis of a pulmonary vein
(6) damage to the phrenic nerve
(7) damage to periesophageal vagus nerve
(8) vascular complications (arteriovenous fistula, pseudoaneurysm, hematoma, etc)
(9) retroperitoneal hemorrhage
(10) atrio-esophageal fistula
(11) cardiac perforation with tamponade
(12) sudden death
(13) rarely complications from equipment failure (excessive radiation exposure)
Late sequelae may include:
(1) thromboembolism secondary to altered atrial contractility
(2) left atrial tachyarrhythmia