Abstract Funding Acknowledgements Type of funding sources: None. Backrounds The posteroseptal (PS) region may pose difficulty in WPW ablation due to its complex anatomical structure. require the need for a transeptal puncture, CS venogram or coronary angiography right and left endocardial epicardial proximity. ECG prediction prevent unnecessary procedures. Negative V1 double QRS transition patt...

Abstract Background The atrioventricular reentrant tachycardia (AVRT) is the most common associated with accessory pathways (APs). Although sporadic Wolff-Parkinson-White (WPW) syndrome has been well-described, AP occurrence in identical twins WPW remains rarely reported. Case presentation We report a case of 14-year-old monozygotic twin brothers referred for an electrophysiology (EP) study. Tw...

Background: The non-Doppler echocardiographic technique known as two-dimensional speckle tracking echocardiography (2D-STE) has been demonstrated to help assess dyssynchrony and allow quantification of cardiac deformity timing in 2D greyscale images. This study evaluated the role accessory pathway (AP) localization compared electrophysiology (EPS) gold standard technique. Methods: was performed...

Bipolar radiofrequency catheter ablation (RFCA) is an off-label strategy used to target ventricular arrhythmias (VA) from difficult substrates such as the LV summit. To achieve greater transmural RFCA lesions in challenging anatomy with a novel bipolar strategy. N/A A 51-year-old male familial HCM and prior for persistent AF presented pallor palpitations setting of wide complex tachycardia 210 ...

To determine the effects of ventricular preexcitation via accessory atrioventricular connections (ACs) on the sequence of basal ventricular activation, electrophysiologic study records of 22 patients with AC were reviewed. In each, AC site was confirmed by mapping done at operation. Local ventricular preexcitation (VP), defined as earlier timing of a local ventricular electrogram relative to th...