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Post Ablation Left Atrial Tachycardia: Understanding mechanism, prevention and treatment.



Currently, post-ablation atrial tachycardias (ATs) represent a growing clinical problem particularly in patients with persistent AF undergoing a more extensive substrate ablation. Understanding mechanisms and location of potentially widely located arrhythmogenic substrates in the left atrium is crucial for successful ablation. Mapping and ablation are challenging since intermediate complex often changing multiple ATs frequently develop during the index procedure and before conversion to sinus rhythm. Use of irrigated ablation guided by detailed 3-D electroanatomic activation maps combined with entrainment pacing is effective with excellent acute and long-term success rates, rarely requiring multiple procedures.

Credits: Carlo Pappone, MD, PhD, FACC; Vincenzo Santinelli MD

Biosense Webster
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Introduction to AFib
Ablation Specialist

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