Catheter ablation of the cavotricuspid isthmus in patients with atrial flutter: predictors of long-term outcomes.

Background: Predictors of long‑term outcomes and an optimal catheter set for ablation of the cavotricuspid isthmus in patients with atrial flutter (AFL) are not well known.

Aims: This study aimed to identify predictors of clinical events following ablation.

Methods: We studied 741 patients (mean [SD] age, 62.

Dyspnoea related to pre-excitation during sinus rhythm as a new indication for catheter ablation.

Background: Patients with pre-excitation without arrhythmic symptoms are diagnosed as Wolff-Parkinson-White (WPW) pattern.

Aim: To evaluate the efficacy of radiofrequency ablation (RFA) in patients with a WPW pattern and reported dyspnoea.

Methods: Five patients (four adults and one adolescent, all female, age 33 ± 15 years) with a WPW pattern were referred due to dyspnoea and exercise intolerance.

[Intracardiac echocardiography for optimisation of RF ablation for incessant idiopathic ventricular tachycardia originating from the aorto-mitralis continuity in a patient with tachycardia-induced cardiomyopathy].

We describe a case of a 67-year-old woman with incessant idiopathic ventricular tachycardia and tachycardia-induced cardiomyopathy who underwent a successful RF ablation of the arrhythmic focus located in the aorto-mitral continuity. The optimal approach and titration of RF energy was achieved by means of the intracardiac echocardiography. The regression of signs of heart failure has been also observed.