AIM: This study reports on the results and safety of a simplified method of trans-septal catheterization for radiofrequency catheter ablation of cardiac arrhythmias. METHODS AND RESULTS: Over 5 years, 411 patients underwent trans-septal catheterization for radiofrequency catheter ablation: 388 patients had a left-sided accessory pathway, 19 a left-sided focal atrial tachycardia, two atrial fibrillation and two post-infarction ventricular tachycardia. All but one patient with ventricular tachycardia underwent elective trans-septal catheterization. In the absence of a patent foramen ovale, puncture of the atrial septum was performed by using an 8F Mullins sheath and a Brockenbrough needle, according to the simplified method described in this paper. Trans-septal catheterization was accomplished in 383/388 patients (98.7%); in 41 patients a second trans-septal catheterization and radiofrequency catheter ablation was performed for initial failure or recurrence. Radiofrequency catheter ablation was successful in 96% of accessory pathway patients, 90% of atrial tachycardia patients, in both patients with atrial fibrillation and in both patients with ventricular tachycardia. No complication related to trans-septal catheterization was observed. CONCLUSION: In experienced hands and according to the method described in this paper, the elective use of transseptal catheterization for radiofrequency catheter ablation in a large cohort of patients with cardiac arrhythmias is feasible, safe and allows successful ablation in the vast majority of the patients.
AIM: This study reports on the results and safety of a simplified method of trans-septal catheterization for radiofrequency catheter ablation of cardiac arrhythmias. METHODS AND RESULTS: Over 5 years, 411 patients underwent trans-septal catheterization for radiofrequency catheter ablation: 388 patients had a left-sided accessory pathway, 19 a left-sided focal atrial tachycardia, two atrial fibrillation and two post-infarction ventricular tachycardia. All but one patient with ventricular tachycardia underwent elective trans-septal catheterization. In the absence of a patent foramen ovale, puncture of the atrial septum was performed by using an 8F Mullins sheath and a Brockenbrough needle, according to the simplified method described in this paper. Trans-septal catheterization was accomplished in 383/388 patients (98.7%); in 41 patients a second trans-septal catheterization and radiofrequency catheter ablation was performed for initial failure or recurrence. Radiofrequency catheter ablation was successful in 96% of accessory pathway patients, 90% of atrial tachycardiapatients, in both patients with atrial fibrillation and in both patients with ventricular tachycardia. No complication related to trans-septal catheterization was observed. CONCLUSION: In experienced hands and according to the method described in this paper, the elective use of transseptal catheterization for radiofrequency catheter ablation in a large cohort of patients with cardiac arrhythmias is feasible, safe and allows successful ablation in the vast majority of the patients.
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