Radiofrequency Catheter Ablation of Human Type 1 Atrial Flutter – Comparison of Results with 8 mm versus 4 mm Tip Ablation Catheter

radiofrequency catheter ablation of type 1 atrial flutter

it has been well - established that common atrial flutter is due to intraatrial macroreentry and its reentry circuit locates in the right atrium. this reentry circuit has been characterized to involve an area of slow conduction identifiable electrophysiologically at the low posteroseptal right atrium and anatomical narrow isthmus snrrounded by the inferior vena capa, coronary sinus astium and t...

Is 8-mm more effective than 4-mm tip electrode catheter for ablation of typical atrial flutter?

BACKGROUND The prospective, randomized study comparing 4- with 8-mm tip electrodes for radiofrequency linear ablation of typical atrial flutter is not available. METHODS AND RESULTS A total of 104 consecutive patients with typical atrial flutter were randomly assigned to undergo radiofrequency linear ablation using a 4- (Group I, n=54) or 8-mm tip electrode (Group II, n=50) catheter (temperat...

Successful irrigated-tip catheter ablation of atrial flutter resistant to conventional radiofrequency ablation.

BACKGROUND Catheter ablation of typical right atrial flutter is now widely performed. The best end point has been demonstrated to be bidirectional isthmus block. We investigated the use of irrigated-tip catheters in a small subset of patients who failed isthmus ablation with conventional radiofrequency (RF) ablation. METHODS AND RESULTS Of 170 patients referred for ablation of common atrial f...

Transvenous Radiofrequency Catheter Ablation for Atrial Flutter and Atrial Fibrillation

Transvenous radiofrequency catheter ablation (RFA) for treatment of atrioventricular (AV) reentrant tachycardia and AV nodal reentrant tachycardia is remarkably successful. To the best of my knowledge, there has not been a large randomized trial comparing RFA with other treatments for these tachycardias. The lack of such trials is due at least in part to the self-evident efficacy of RFA in this...

Radiofrequency catheter ablation for the treatment of human type 1 atrial flutter.