Key result
Cryoballoon ablation for paroxysmal atrial fibrillation was associated with late left atrial thrombus formation and cerebral infarction 14 months post-procedure in a 66-year-old man.
Why the study?
Stroke after catheter ablation for AF can occur in both acute and chronic phases, and late thrombus formation on the ablation line requires clinical characterization.
Case Report (n=1)
Highlights the rare but severe risk of chronic phase thrombus formation on the ablation line 14 months after cryoballoon ablation for atrial fibrillation.
May signal late thromboembolic risk after cryoballoon ablation; single case leaves incidence and causality open.
Catheter ablation is a widely accepted therapy for atrial fibrillation (AF), of which stroke is a major complication. A stroke after catheter ablation has been reported in numerous studies not only in the acute phase but also in the chronic phase. A 66-year-old man with drug refractory paroxysmal AF underwent catheter ablation. Fourteen months later, the patient was diagnosed with cerebral infarction. Transesophageal echocardiography detected an ovoid mass on the anterior aspect of the right superior pulmonary vein atrium, where the previous ablation was performed. We report a very rare case of left atrial thrombus formation required surgical treatment 14 months after cryoballoon ablation.Careful follow up with multimodalities is necessary for the detection and diagnosis of chronic phrase thrombus formation.
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Kitazumi et al. (2020) conducted a case report in Paroxysmal atrial fibrillation (n=1). Cryoballoon ablation was evaluated on Left atrial thrombus formation and cerebral infarction. Cryoballoon ablation for paroxysmal atrial fibrillation was associated with late left atrial thrombus formation and cerebral infarction 14 months post-procedure in a 66-year-old man.
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