Mansoura conventional electrophysiological study and ablation registry at time between march 2020 to march 2021

Background: Catheter ablation has been described as a standard therapy for cardiac tachyarrhythmias. Although multiple registries have been reported from different geographical regions, like Europe and the USA, little is known about the criteria and outcomes of such patients in the Egyptian setting. Herein, we report the distribution of cardiac arrhythmias, success rate, and complications of catheter ablation in our tertiary care cardiac setting. Methods: This prospective cross-sectional study included 50 patients who underwent catheter ablation for cardiac tachyarrhythmias. Results: Most patients were older than 40 years (62%). Our study revealed the following types of arrhythmias; atrioventricular reciprocating tachycardia (AVRT) (30%), atrioventricular nodal reentry tachycardia (AVNRT) (48%), atrial tachycardia (4%), Wolff-Parkinson-White syndrome (12%), and atrial flutter (6%). Decremental retrograde conduction was noted in 62% of patients, while non-decremental conduction was present in 38% of them. A slow pathway was ablated in most patients (48%), while other ablated areas included the upper and lower crista terminalis (4%), posterior septum (10%), lateral annulus either right or left one (26%), anterior septum (2%), mid septum (4%), and cavotricuspid isthmus (6%). Our general success rate was 98%. AVNRT was significantly associated with older age, as 67.7% of their patients were older than 40 years.