Background. Animal studies have suggested that the temperature of the electrode-tissue interface during radiofrequency catheter ablation accurately predicts lesion size. The purpose of the current study was to evaluate the utility of continuous temperature monitoring during radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome. Methods and Results. Twenty patients wit...

Background The purpose of this study was to evaluate electrode temperatures obtained using a radiofrequency ablation system that incorporates closed loop feedback control to achieve preset target electrode temperatures and to determine if closed loop temperature control results in a lower incidence of developing a coagulum. Methods and Results Two hundred seventy patients underwent catheter abl...

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...

Catheter ablation of drug-refractory ventricular tachycardia (VT) that occurs in infancy can be challenging owing to the small size of the heart and vessels compared to the ablation catheters. We present a toddler with incessant left ventricular (LV) tachycardia that was successfully treated by radiofrequency catheter ablation with an 8 French irrigated-tip catheter via a transapical approach. ...

BACKGROUND We sought to investigate the feasibility of radiofrequency catheter ablation of atrioventricular node reentrant tachycardia and the ideal site for slow pathway (SP) ablation in congenitally corrected transposition of the great arteries. METHODS AND RESULTS Nine patients with congenitally corrected transposition of the great arteries referred for catheter ablation of atrioventricula...

Left atrial intramural hematoma is a very rare complication of radiofrequency ablation procedures. A patient with tachyarrhythmia underwent radiofrequency catheter ablation. Echocardiography performed the following morning showed a large mass in the left atrium, suggestive of intramural hematoma formation. The patient was in a stable condition; therefore, it was decided that follow-up should be...

tricuspid isthmus mapping to assess bidirectional block during common atrial flutter radiofrequency ablation. Circulation 1999;100:2507–13. 11. Sacher F, Derval N, Jadidi A, Scherr D, Hocini M, Haissaguerre M et al. Comparison of ventricular radiofrequency lesions in sheep using standard irrigated tip catheter versus catheter ablation enabling direct visualization. J Cardiovasc Electrophysiol 2...

Background: This study assessed the efficacy and safety of techniques used to ablate left-sided accessory atrioventricular pathways at atrial insertion sites by retrograde aortic approach. Radiofrequency catheter ablation of left-sided accessory pathways by way of retrograde aortic approach can be highly successful. Methods: This study were done in the department of Cardiology, National Institu...

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...

㻌 Background-As the technique for radiofrequency catheter ablation for atrial fibrillation