Heart rhythm · 2012
Risk of stroke and atrial fibrillation after radiofrequency catheter ablation of typical atrial flutter.
СтатьяНазвание и аннотация: Перевод в очереди
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Tomson Todd T, Kapa Suraj, Bala Rupa, Riley Michael P, Lin David, Epstein Andrew E, Deo Rajat, Dixit Sanjay
Аннотация
BACKGROUND: Studies suggest that 18%-50% of the patients develop atrial fibrillation (AF) after typical atrial flutter (AFL) ablation. However, little data exist about the incidence of and risk factors for stroke and AF after successful ablation of typical AFL.
OBJECTIVES: To determine the risk of stroke and AF after radiofrequency ablation of typical AFL.
METHODS: A retrospective review of patients undergoing AFL ablation between 2002 and 2010 was performed to determine the incidence of and risk factors for stroke and AF after successful ablation of typical AFL.
RESULTS: The study cohort consisted of 126 patients (age 66 ± 10 years) with a mean follow-up of 40 ± 30 months after ablation. Following successful AFL ablation, AF occurred in 46 patients (37%), with an incidence of 104 cases of documented AF per 1000 person-years after AFL ablation. Twenty patients (16%) developed new AF after AFL ablation. Stroke occurred in 8 patients (6%) during follow-up, with an incidence of 21 strokes per 1000 person-years. Six of the 8 patients (75%) with strokes had documented AF occurrences after AFL ablation. The presence of AF after AFL ablation was the only risk factor associated with the risk for future stroke.
CONCLUSIONS: Patients with typical AFL undergoing successful ablation are at an elevated risk for AF and stroke following the procedure. Because postprocedure AF is the only identifiable risk factor for stroke, rigorous monitoring of patients after typical AFL may help identify those patients who are at an increased risk for stroke.
OBJECTIVES: To determine the risk of stroke and AF after radiofrequency ablation of typical AFL.
METHODS: A retrospective review of patients undergoing AFL ablation between 2002 and 2010 was performed to determine the incidence of and risk factors for stroke and AF after successful ablation of typical AFL.
RESULTS: The study cohort consisted of 126 patients (age 66 ± 10 years) with a mean follow-up of 40 ± 30 months after ablation. Following successful AFL ablation, AF occurred in 46 patients (37%), with an incidence of 104 cases of documented AF per 1000 person-years after AFL ablation. Twenty patients (16%) developed new AF after AFL ablation. Stroke occurred in 8 patients (6%) during follow-up, with an incidence of 21 strokes per 1000 person-years. Six of the 8 patients (75%) with strokes had documented AF occurrences after AFL ablation. The presence of AF after AFL ablation was the only risk factor associated with the risk for future stroke.
CONCLUSIONS: Patients with typical AFL undergoing successful ablation are at an elevated risk for AF and stroke following the procedure. Because postprocedure AF is the only identifiable risk factor for stroke, rigorous monitoring of patients after typical AFL may help identify those patients who are at an increased risk for stroke.