[Permanent junction reciprocating tachycardia--treatment with radiofrequency current ablation]

The patients with WPW syndrome demonstrate wide scale of clinical manifestation, from asymptomatic course to sudden cardiac death. Among this patients it is possible to identify the small group of patients with rare kind of atrioventricular reentrant tachycardia named permanent junctional reciprocating tachycardia (PJRT) associated with increased risk of development tachycardia-induced cardiomyopathy. This patients should be successful treated by radiofrequency catheter ablation (RFCA). Aim of the study was assessment of efficacy and safety of RFCA procedure in patients with preexcitation syndrome and PJRT. Analyzed group consisted of 7 patients with PJRT selected from 163 consecutive patients with symptomatic WPW--syndrome undergo electrophysiological study (EPS) and RFCA. Analyzed group consist of 4 women and 3 men. Mean age of patients was 22.71 SD +/- 7.99 (from 14 to 38 years). Every patients underwent EPS and RFCA simultaneously. Success-rate in first session was 71.42% (5 patients were successful ablated). Two women underwent second ablation one who has recurrent symptomatic arrhythmia and another who initially was unsuccessfully treated in first session. This two additional procedures were successful. RFCA-duration time was average 107.85 minutes SD +/- 21.95 (min-80, max-145 min) and fluoroscopy--time amount from 28 min to 55 min average 38.58 min (SD +/- 11.14). Among analyzed patients we did not noticed any complications during ablation procedure. Patients with PJRT could be safe and successfully treated using RFCA.