s physicians bid farewell to the last century, they also itnessed the rise of catheter-based ablation and the fall of ntiarrhythmic drug use for the treatment of cardiac arhythmias. At that time, only a select few investigators truly elieved that catheter-based ablation would work for treatent of atrial fibrillation (AF). The initial attempts at catheter ablation, patterned after he Cox surgica...

Proper localization of the anatomical target during ablation of the accessory pathways (AP) and the ability to detect clear AP potentials on the ablation catheter are crucial for successful AP ablation. We report a case of recurring AP conduction that was finally eliminated using a novel ablation catheter equipped with high-resolution mini-electrodes. Smaller and closer electrodes result in hig...

Pulmonary thromboembolism (PTE) is a fatal condition that may rarely occur due to complications of coronary catheter insertion. In this case report, a 41-year-old male was presented 48 hours after radiofrequency catheter ablation(RFCA) for the management of Wolf-Parkinson-White syndromewith acute onset of dyspnea, hemoptysis, and chest pain. The physical examination revealed coarse crackles in ...

INTRODUCTION Pulmonary vein (PV) reconnection is frequently the cause of recurrence of atrial fibrillation (AF) after ablation. The second-generation gold multi-electrode ablation (Gold-MEA) catheter has a new design possibly resulting in improved lesion formation compared with its predecessor. We aimed to determine the association between effective radiofrequency applications with the Gold-MEA...

AIMS Incisional atrial tachycardias in patients following surgery for congenital heart disease are based on complex structural abnormalities in these hearts. The aim of this study was to evaluate the use of the electroanatomical mapping system, CARTO, in consecutive patients with different forms of incisional atrial tachycardia. METHODS AND RESULTS The electroanatomical mapping system combine...

Atrial fibrillation (AF) is the most common arrhythmia and is a significant burden to healthcare cost. AF causes congestive heart failure, thromboembolic events such as stroke and intolerable symptoms in some patients. With the advances and increasing experience in catheter ablation, there is now an established role for catheter ablation in patients with atrial fibrillation. The risks, complica...

Case Report A 64-year-old woman with a 3-year history of drug refractory paroxysmal atrial fibrillation was referred to our hospital for catheter ablation. Preprocedual echocardiography and enhanced computed tomography (CT) revealed no structural heart disease or anatomic anomalies (Figure 1A). Catheter ablation of the atrial fibrillation was performed under conscious sedation. Two 8.5-F long s...

The first clinical application of a catheter ablation technique was to create complete atrioventricular (AV) block by the transcatheter delivery of a direct-current shock to the AV junction in patients with supraventricular tachycardia refractory to pharmacologic therapy.^'^ This was followed by attempts at catheter ablation of ventricular tachycardia (VT) foci, accessory pathways, and atrial t...

Permanent destruction of abnormal cardiac tissue responsible for cardiac arrhythmogenesis whilst avoiding collateral tissue injury forms the cornerstone of catheter ablation therapy. As the acceptance and performance of catheter ablation increases worldwide, limitations in current technology are becoming increasingly apparent in the treatment of complex arrhythmias such as atrial fibrillation. ...

Just over a decade ago, the advent of tip temperature monitoring during radiofrequency (RF) energy delivery marked the beginning of a second generation of ablation catheter technology and furthered the success of catheter ablation as a therapeutic tool. RF generators were designed with a closed-loop feedback system to automatically adjust power output to avoid temperatures that would cause coag...