Active clinical trials for "Tachycardia, Atrioventricular Nodal Reentry"

The purpose of this post approval study of heart block is to gather additional information regarding how often patients develop heart block (atrioventricular block) after having standard ablation procedure using cryotherapy with the Freezor™ catheter.

This study is aimed at : Identifying the exact location of the circuit of typical and atypical AVNRT by applying high-resolution electroanatomic mapping. Investigating the possibility that the recently described "ring tissues" participate in the AVNRT circuit.

The purpose of this study is to compare the safety and effectiveness of cryoablation and radiofrequency ablation in the treatment of the commonest kind of supraventricular tachycardia, namely atrioventricular nodal reentrant tachycardia. The study hypothesis is that cryoablation is non-inferior to radiofrequency.

Atrioventricular nodal reciprocating tachycardia (AVNRT) and atrioventricular reciprocating tachycardia (AVRT) are two similar supraventricular re-entry tachycardias (SVT) emerging in relatively young age in patients without apparent structural heart disease or significant comorbidities. The treatment of choice in those patients is radiofrequency ablation (RFA). The PPRA study is a prospective observational study developed to thoroughly analyze quality of life, utility and willingness-to-pay of Polish patients undergoing RF ablation of AVNRT or AVRT. Based on collected data the investigators will prepare a profile of patient who will benefit most from radiofrequency ablation and who should be scheduled in first place for the ablation in case of problems with accessibility to this service. What is more an analysis of medical and indirect costs of care will be performed.

This is a retrospective, multi center clinical study collecting existing, de-identified subject data from medical records to be analyzed using an independent core laboratory to validate performance of a computational ECG mapping system (vMap™).