Why the study?
What is the incidence and what are the predictors of left atrial thrombus detected by TEE prior to catheter ablation of atrial fibrillation in anticoagulated patients?
Population
732 cases in 585 consecutive patients referred for catheter ablation of atrial fibrillation, mean age 57 +/…
Design
Cohort
Authors
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Persistent thrombus risk despite anticoagulation warrants vigilant preprocedural imaging; confirms predictors but leaves optimal TEE screening open.
What is the incidence and what are the predictors of left atrial thrombus detected by TEE prior to catheter ablation of atrial fibrillation in anticoagulated patients?
Despite oral anticoagulation, there is a 1.6% incidence of LA thrombus prior to AF ablation, independently predicted by a CHADS2 score >= 2 and larger LA diameter.
Dalal et al. (2008) studied this question.
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