Key result
Circular mapping catheters for AF ablation become entrapped within the mitral valve in two patients.
Why the study?
The circular mapping catheter is useful for guiding pulmonary vein isolation in atrial fibrillation ablation but may become entrapped in cardiac structures.
The circular mapping catheter used in atrial fibrillation ablation carries a risk of entrapment in the mitral valve apparatus.
Alerts operators to rare mitral valve entrapment risk with circular mapping catheters in AF ablation; leaves open optimal prevention strategies.
The circular catheter is a useful tool to guide and test pulmonary vein (PV) isolation in atrial fibrillation ablation. However, its shape may facilitate entrapment in cardiac structures. We describe the entrapment of a circular mapping catheter within the mitral valve apparatus after transseptal catheterization and mapping of the left atrium and PVs in two of our patients.
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Zeljko et al. (2010) studied this question. Circular mapping catheters used during atrial fibrillation ablation became entrapped within the mitral valve apparatus in two patients after transseptal catheterization.
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