INTRODUCTION Radiofrequency (RF) ablation of the slow pathway for treatment of atrioventricular nodal reentrant tachycardia (AVNRT) is conventionally performed during sinus rhythm. AIM To evaluate the clinical and electrophysiological features and the short- and long-term results of slow pathway RF ablation during ongoing AVNRT. MATERIAL AND METHODS A total of 282 consecutive patients with ...

BACKGROUND Data on the incidence and significance of catheter-induced trauma to fast and slow pathways are scarce. OBJECTIVES To evaluate the incidence, predictors, and clinical implications of inadvertent catheter-induced mechanical trauma to fast and slow pathways during radiofrequency ablation (RFA) of atrioventricular nodal reentry tachycardia (AVNRT). METHODS A total of 901 consecutive...

This review is aimed at discussing the diagnostic value of the different electrocardiographic criteria so far described in the differential diagnosis of the major forms of paroxysmal supraventricular tachycardias (PSVTs). The predictive value of different combinations of these independent electrocardiographic (ECG) signs in distinguishing atrioventricular reentrant tachycardias (AVRTs) through ...

INTRODUCTION Cryoablation is used increasingly for the treatment of atrioventricular nodal reentrant tachycardia (AVNRT). We sought to compare the long-term outcomes of cryoablation (Cryo) vs. radiofrequency (RF) ablation for the treatment of AVNRT in children. METHODS Two groups of consecutive patients were analyzed retrospectively: the RF group, 20 patients (60% males, mean age 13.25 +/- 2....

Second-degree atrioventricular (AV) nodal block with 2:1 AV conduction during atrioventricular nodal reentrant tachycardia (AVNRT) has been previously described. We report a patient who developed AVNRT during which 3:1 intra-infra-Hisian block due to catheter manipulation was observed. This was followed by gradual, incremental recovery of AV conduction. AVNRT accounts for approximately 50% of c...

A woman of 18 presented with a supraventricular tachycardia, subsequently shown to be caused by atrioventricular nodal reentry, which abruptly deteriorated to a multiform ventricular tachycardia. She had not received any antiarrhythmic drugs nor did she have any of the disorders that are usually associated with this atypical ventricular tachycardia.

We describe a case of severe left ventricular (LV) heart failure caused by tachycardiomyopathy with concomitant presence of unsolved thrombus in left atrial appendage despite effective oral anticoagulant treatment. Successful ablation of atrial flutter and atrioventricular nodal reentry tachycardia entailed resolution of heart failure symptoms and normalisation of LV function.

10. Denes P, Wu D, Dhingra RL, Amat-y-Leon F, Wyndham CRC, Rosen KM: Dual A-V nodal pathways. Br Heart J 37: 1069, 1975 11. Touhoul P, Huerta F, Porte J, Delahaye JP: Reciprocal rhythm in patients with normal electrocardiogram: evidence for dual conduction pathways. Am Heart J 9: 3, 1976 12. Denes P, Wu D, Dhingra RC, Chuquimia R, Rosen KM: Demonstration of dual A-V nodal pathways in patients w...