INTRODUCTION Sinus node dysfunction (SND) commonly manifests with atrial arrhythmias alternating with sinus pauses and sinus bradycardia. The underlying process is thought to be because of atrial fibrosis. We assessed the value of atrial fibrosis, quantified using late gadolinium enhanced-MRI (LGE-MRI), in predicting significant SND requiring pacemaker implant. METHODS Three hundred forty-fou...

In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance. Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome. Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of ...

  Background: Catheter ablation is widely used for treatment of atrial fibrillation. The use of fluoroscopic and non-fluoroscopic mapping systems in catheter ablation is common. This study conducted to investigate the safety and effectiveness of Navx non-fluoroscopic mapping system.   Methods : In this study, the appropriate electronic databases including Cochrane Library and Ovid Medline searc...

de Electrofisiología y Arritmias de la Sociedad Española de Cardiología (2005). Rev Esp Cardiol. 2006;59:1165-74. 6. Conti JB, Geiser E, Curtis AB. Catheter entrapment in the mitral valve apparatus during radiofrequency ablation. Pacing Clin Electrophysiol. 1994;17:1681-5. 7. Mandawat MK, Turitto G, El-Sherif N. Catheter entrapment in the mitral valve apparatus requiring surgical removal: an un...

Outflow tract tachycardias (OTT) originating from the right or left ventricular outflow tract are thought to be benign. However, symptoms can be disabling and deterioration of left ventricular function may occur with a high arrhythmia burden. Catheter ablation has a high acute success rate of up to 90 %, but recurrences are not uncommon [1, 2]. Novel catheter designs, and mapping and ablation t...

BACKGROUND Several studies reported that cavotricuspid isthmus-dependent atrial flutter (typical AFL) frequently coexists with atrial fibrillation (AF); however, the underlying mechanisms have not been fully investigated. This study aimed to reveal the mechanisms of the initiation of typical AFL and the association between typical AFL and AF. METHODS Among 154 consecutive patients undergoing ...

OBJECTIVE To evaluate the effect of catheter ablation vs. direct current synchronized cardioversion (DCC) in patients with persistent atrial fibrillation (AF) and left ventricular systolic dysfunction, and to define baseline features of patients that will get more benefit from ablation. METHODS From July 2013 to October 2014, 97 consecutive single-center patients with persistent AF and sympto...

INTRODUCTION AND AIM Remote magnetic navigation has proved to be effective in the ablation of most supraventricular and ventricular arrhythmias. Initial studies reported worse results with this system compared to conventional ablation for atrial flutter. The aim of this study was to assess the acute and long-term success of atrial flutter ablation with remote magnetic navigation and to retrospe...

Catheter ablation is an experimental procedure that may prove useful for patients with drug-refractory supraventricular tachycardia. Current techniques involve the use of high-energy direct-current shocks, delivered via electrode catheters. These techniques have been used most commonly for ablating the atrioventricular (AV) junction in patients with supraventricular tachycardia. Such ablation m...