Key result
Late LAA thrombus and embolic stroke can occur years after catheter ablation despite persistent sinus rhythm.
Why the study?
After restoration of sinus rhythm by atrial ablation, the risk of embolic stroke related to impaired left atrial mechanical function remains unclear.
Case Report (n=1)
Echocardiography may be useful after atrial ablation to assess atrial mechanical function and stratify embolic risk before discontinuing anticoagulation, even if sinus rhythm is maintained.
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May warrant echo assessment of LAA function before stopping anticoagulation post-ablation despite sinus rhythm; single case leaves open need for prospective validation.
Lombardo et al. (2005) conducted a case report in Embolic stroke (n=1). Radiofrequency catheter ablation was evaluated on Stroke and left atrial appendage thrombus. A 64-year-old man developed an embolic stroke due to a left atrial appendage thrombus two years after radiofrequency catheter ablation despite persistence of sinus rhythm.
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