This case highlights a rare but significant complication of circular mapping catheter electrode dislodgement during pulmonary vein isolation.
Raises awareness of CMC electrode dislodgement during PVI; extends sparse case reports on this rare complication.
Use of a circular mapping catheter (CMC) in pulmonary vein (PV) isolation procedures is standard practice and generally considered to be safe in patients with atrial fibrillation (AF).1 However, we report a case where a metallic electrode displaced from a distal CMC was seen free-floating in the left atrium (LA) on fluoroscopy. Unexpectedly, the electrode traveled retrograde and became lodged in a terminal branch of the right inferior pulmonary vein (RIPV).
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Zhang et al. (2017) studied this question.
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