A functional discordance of conductive and refractile properties within atrionodal and AV nodal tissues is thought to be the basis for AV nodal reentrant tachycardia (AVNRT). Contemporary therapy aimed at curing AVNRT without materially damaging normal AV conduction began with surgical AV node modification.' Catheter based techniques with DC shocks and later with radiofrequency energy have been...

Atrioventricular nodal re-entrant tachycardia (AVNRT) is a common arrhythmia that is frequently encountered in clinical practice. Though more common in the younger population, it affects individuals of all ages. The elderly in particular are usually more symptomatic and more frequently require emergency treatment including urgent hospital admissions. We report on a 96-year-old lady who presente...

observed that the sinus wave reached the AV node with a Introduction Atrioventricular septal defect (AVSD) can be associated with supraventricular arrhythmias and atrial fibrillation (AF). The position of the conduction system differs from the normal heart: the atrioventricular (AV) node is more posterior and inferior compared with the normal position in the triangle of Koch, in close relation ...

Establishing the etiology of tachycardia in a trauma patient is often difficult. Pediatric trauma patients present an even tougher challenge. Cardiac contusion should be suspected when other more common traumatic injuries that produce hypoxia and blood loss are excluded. The diagnosis of cardiac contusion is notoriously difficult to make largely due to the controversy over the definition of the...

anotomical boundary of atrioventricular node reentrant tachycardia (avnrt) is composed of fast and slow pathways right atrium in upper turnaround and common distal pathway in lower turnaround. we performed electophsiologic study (eps) in 152 patients and could show the existence of distal common pathway with decremental conduction properties in approximately 40 patients.

Precise localization of the slow atrioventricular nodal pathway (SP) is crucial to safe and successful ablation re-entrant tachycardia (AVNRT). However, interpatient anatomic variability can limit efficacy increase risk for heart block. Activation mapping in sinus rhythm using omnipolar technology (OT) delineate areas abrupt change propagation direction, which may reflect connections between fa...

Background: Catheter ablation has been described as a standard therapy for cardiac tachyarrhythmias. Although multiple registries have reported from different geographical regions, like Europe and the USA, little is known about criteria outcomes of such patients in Egyptian setting. Herein, we report distribution arrhythmias, success rate, complications catheter our tertiary care Methods: This ...