The WolfParkinsonWhite (WPW) syndrome is a condition with early excitation of the heart ventricles due to conduction an electrical pulse along atrioventricular pathway, such as Kent, James bundle, and Mahaim fibers; usually accompanied by supraventricular tachycardia, reciprocal tachycardia in 95% cases, fibrillation, atrial flutter, other cases. WPW can be observed patients any age, approximat...

BACKGROUND To assess regional systolic function and global contractile function in patients with WPW Syndrome. METHOD Eleven cases with manifest Wolff-Parkinson-White (WPW) syndrome in sinus rhythm were compared to 11 age matched controls. 2D strain analysis was performed and peak segmental radial strain (pRS) values obtained from basal ventricular parasternal short-axis images (70 +/- 5 fram...

BACKGROUND Atrial fibrillation (AF) in WPW syndrome occurs earlier and is more common than in the general population. AIM To evaluate the predisposing factors for the first episode of AF in patients with WPW. METHODS We analysed data on 930 patients (510 males, 420 females) with WPW treated in our centre during 1988-2007. AF was diagnosed in 236 patients (25% - 161 males, 75 females, aged 3...

BACKGROUND Whether the Wolff-Parkinson-White syndrome (WPW) is associated with repolarization abnormalities is controversial. The QRST isointegral map (I-map) is theoretically independent of the activation sequence and dependent on repolarization properties. There have been no reports concerning the effects of radiofrequency (RF) catheter ablation of accessory pathway (AP) on repolarization pro...

BACKGROUND There are currently several electrocardiographic algorithms to locate the accessory pathway (AP) in patients with Wolff-Parkinson-White (WPW) syndrome. OBJECTIVE To compare the ability of electrocardiographic algorithms in identifying the location of the AP in patients with WPW pattern referred for ablation. METHODS Observational, cross-sectional, retrospective study with 111 pat...

The Wolff-Parkinson-White (WPW) syndrome is reflected by a short PR interval and a widened QRS complex, with a slurred initial component the delta wave. The mechanism of this syndrome is thought to be due to the presence of a bypass within the AV junction an additional AV conduction channel which permits rapid AV conduction and consequent pre-excitation of the ventricles. The presence of an add...

Wolff-Parkinson-White syndrome is a disorder characterized by presence of an accessory pathway which predisposes patients to tachyarrhythmias and sudden death. Among patients with WPW syndrome, atrioventricular reentrant tachycardia (AVRT) is the most common arrhythmia, accounting for 95% of re-entrant tachycardias. It has been estimated that one-third of patients with WPW syndrome have atrial ...