Aurélie Guiot

Prevalence and Predictors of Complications of Radiofrequency Catheter Ablation for Atrial Fibrillation

Complications of Atrial Fibrillation Ablation. Introduction: Up to 6% of patients experience complications after radiofrequency catheter ablation (RFA) of atrial fibrillation (AF). The purpose of this study is to determine the prevalence and predictors of periprocedural complications after RFA for AF.

Anticoagulant therapy and risk of cerebrovascular events after catheter ablation of atrial fibrillation in the elderly.

Stroke and Atrial Fibrillation Ablation. Introduction: Factors associated with cerebrovascular events (CVEs) after radiofrequency catheter ablation (RFA) of atrial fibrillation (AF) have not been well defined in elderly patients (≥65 years). The purpose of this study was to determine the prevalence and predictors of CVEs after RFA in patients with AF ≥65 years old, in comparison to patients <65 years, and with or without AF.

The left coronary cusp as an unusual location for accessory pathway ablation

Case report In a 26-year-old woman, 6 months pregnant, with a recent history of palpitations, the surface electrocardiogram (ECG) showed sinus rhythm with ventricular preexcitation. As seen in Figure 1B, the delta wave was isoelectric in lead V1 and positive in leads I, II, III, and aVF and in all precordial leads, suggesting the presence of a right anteroseptal AP. ECG could not be performed during palpitations, and therefore tachycardia could not be documented. Beta-blockers were introduced, and the patient was no longer symptomatic during pregnancy. After childbirth, a few weeks before programmed electrophysiology study, the patient was hospitalized because of intentional beta-blocker overdose. After discontinuing it for 5 days, the electrophysiology study was then rapidly performed. A decapolar catheter was advanced within the coronary sinus, and a quadripolar catheter was positioned at the His bundle (HB) area. At baseline, programmed atrial stimulation showed an anterograde accessory pathway refractory period of 350 ms. No atrioventricular (AV) nodal jump was recorded. There was no ventriculoatrial conduction during ventricular pacing at a pacing cycle length of 600 ms.

Novel approach for atrial fibrillation ablation during open-heart surgery using cryoballoon technology

BACKGROUND The role of cryoballoon pulmonary vein isolation for the treatment of atrial fibrillation (AF) is unclear. METHODS AND RESULTS In a 61-year-old man with persistent AF and severe mitral valve regurgitation, surgical cryoballoon pulmonary vein isolation was performed during open-heart surgery, without complication. CONCLUSION Surgical cryoballoon ablation is feasible and can effectively isolate PV.