Brugada Pattern Caused by a Flecainide Overdose.

Background: Brugada pattern can be found on the electrocardiogram (ECG) of patients with altered mental status, usually with fever or drug intoxication. Diagnosis remains challenging, because the ECG changes are dynamic and variable. In addition, triggers are not always clearly identified.

Sharp Potential in Cavo-tricuspid Isthmus Targeted during Typical Atrial Flutter Radiofrequency Ablation.

The aim of this study was to define atrial electrograms (EGM) morphology, which could predict a conduction gap in cavo-tricuspid isthmus (CTI) during typical atrial flutter (AF) radiofrequency ablation. One hundred atrial EGM were retrospectively analysed. We demonstrated that recognising a sharp potential (short duration and high amplitude) is useful for quickly achieving CTI bi-directional block during typical AF ablation.

[Very long term follow-up after radiofrequency ablation for atrial fibrillation: the Geneva experience].

Catheter ablation (CA) has emerged as an increasingly popular treatment option for selected patients with atrial fibrillation (AF) because drugs are frequently limited by side effects and poor effectiveness. However, very little data is available regarding outcomes of CA of AF beyond 5 years. Guidelines' recommendations are not clear regarding long-term oral anticoagulation (OAC) after 2 years.

Noninvasive pacing study via pacemakers and implantable cardioverter-defibrillators for differentiating right from left atrial flutter.

Background: Patients with atrial flutter who are implanted with a pacemaker (PM) or implantable cardioverter-defibrillator (ICD) present with the opportunity to perform a noninvasive pacing study (NIPS) using the right atrial pacing lead to differentiate right from left atrial flutter.

Objectives: The purpose of this study was to study the feasibility and accuracy of NIPS to distinguish right from left atrial flutter.

Methods: We enrolled consecutive patients scheduled for an electrophysiological study or ablation procedure who were in atrial flutter and who were implanted with a PM or ICD with a functional atrial lead in the right atrial appendage.

Thromboembolic events 7-11 years after catheter ablation of atrial fibrillation.

Background: The results of catheter ablation of atrial fibrillation (AF) beyond 6 years remain unknown. The goal of this study is to assess the risk of thromboembolic events (TEs) and outcomes of AF ablation at long-term follow-up (FU).

Methods: All patients who had AF ablation from 2002 until 2005 in our center were contacted for a FU including a questionnaire, cardiac rhythm monitoring, and transthoracic echocardiography.