It has been demonstrated that successful cavotricuspid isthmus ablation may be effective in preventing paroxysmal atrial fibrillation. However, the effectiveness of only isthmus ablation on atrial fibrillation itself is unclear.
Researchers hypothesized that an organized activation pattern around the tricuspid annulus during atrial fibrillation indicated a mother reentrant circuit that could be terminated by a cavocaval isthmus ablation, thus preventing atrial fibrillation. The objectives of the present study were to evaluate the effectiveness of isthmus ablation in preventing atrial fibrillation and to identify predictors of its success.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
366
Isthmus ablation was performed in paroxysmal atrial fibrillation patients.
Control group was performed no additional cavotricuspid isthmus ablation.
Seoul st. mary's hospital
Seoul, South Korea
Freedom of AF and Af
1 month, 3 months and 12months after ablation follow up visit and Check the recurrence of atrial fibrillation through EKG,Holter, event recording
Time frame: 1 year after catheter ablation
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