When is anticoagulation therapy indicated in patients receiving catheter ablation for atrial flutter (AFL)?

Updated: Nov 18, 2019
  • Author: Lawrence Rosenthal, MD, PhD, FACC, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
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In a study comparing left atrial appendage function before and at varying intervals (immediate, 1 day, 1 week, and 6 week) after catheter ablation of persistent atrial flutter, a significant increase in atrial standstill, decrease in left atrial appendage function, and new spontaneous echo contrast occurred after ablation. [25] One patient formed a new left atrial appendage thrombus. Evidence of atrial stunning significantly improved after 1 week. Anticoagulation for at least 30 days is advocated after ablation of an atrial flutter persisting for more than 2 days.

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