Simple periprocedural precautions to reduce Doppler microembolic signals during AF ablation.

ABSTRACT:

Background

Doppler microembolic signals (MES) occur during atrial fibrillation ablation despite of permanent flushed transseptal sheaths, frequent controls of periprocedural coagulation status and the use of irrigated ablation catheters PURPOSE: To investigate the number and type of MES depending on the procedure time, prespecified procedure steps, the activated clotting time (ACT) during the ablation procedure and the catheter contact force.

Methods

In a prospective trial, 53 consecutive atrial fibrillation patients underwent pulmonary vein isolation by super-irrigated "point-by-point" ablation. All patients underwent a periinterventional, continuous transcranial Doppler examination (TCD) of the bilateral middle cerebral arteries during the complete ablation procedure.

R

SUBMITTER: Christoph M 

PROVIDER: S-EPMC9399063 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature