Radiofrequency Ablation of Paroxysmal Supraventricular Tachycardia Using a Novel Catheter Equipped With Mini Electrodes
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Paroxysmal Supraventricular Tachycardia
- Sponsor
- Yong Seog Oh
- Enrollment
- 136
- Locations
- 1
- Primary Endpoint
- RF time (seconds) to successful ablation
- Status
- Completed
- Last Updated
- 4 years ago
Overview
Brief Summary
Paroxysmal supraventricular tachycardia is treated with radiofrequency ablation recently. This procedure is performed by ablating slow pathway or accessory pathway using radiofrequency ablation catheter. Recently developed mirofidelity (MIFI) catheter has mini-electrodes that can record local eletrogram with higher resolution. We aimed to investigate the efficacy of MIFI catheter in the ablation of paroxysmal supraventricular tachycardia compared to conventional radiofrequency ablation catheter. Enrolled patients undergo conventional electrophysiologic study. Patients with sustained supraventricular tachycardia during the study are randomized to either study group or control group. Radiofrequency ablation is performed using MIFI catheter in the study group, and conventional catheter (Blazer II) in the control group. The study endpoints are recorded immediately after ablation and there is no additional follow up or management after procedure.
Investigators
Yong Seog Oh
professor
Seoul St. Mary's Hospital
Eligibility Criteria
Inclusion Criteria
- •Patients who are scheduled to undergo radiofrequency ablation for paroxysmal supraventricular tachycardia or WPW syndrome with atrial fibrillation
- •Give written informed consent for the study
Exclusion Criteria
- •Unable to induce supraventricular tachycardia during electrophysiologic study.
- •Cognitive impairment to understand study procedure
Outcomes
Primary Outcomes
RF time (seconds) to successful ablation
Time Frame: At the end of radiofrequency ablation procedure
For AVNRT, the time (seconds) from the beginning of radiofrequency ablation to the emergence of junctional rhythm For AVRT, the time (seconds) from the beginning of radiofrequency ablation to the accessory pathway block
RF application number
Time Frame: At the end of radiofrequency ablation procedure
Number of radiofrequency ablation attempt to successful ablation
Secondary Outcomes
- Total ablation time (seconds)(At the end of radiofrequency ablation procedure)
- Presence of either acute reconnection or reinduction(At the end of radiofrequency ablation procedure)