Clinical Trials Logo
  1. Home
  2. Paroxysmal Atrial Fibrillation
  3. NCT01913522

Cryoballoon vs. Irrigated Radiofrequency Catheter Ablation: Double Short vs. Standard Exposure Duration — CIRCA-DOSE  

Paroxysmal Atrial Fibrillation Clinical Trial

Official title:
Cryoballoon vs. Irrigated Radiofrequency Catheter Ablation: The Effect of Double Short vs. Standard Exposure Cryoablation Duration During Pulmonary Vein Isolation.

Clinical Trial Summary

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is associated with reductions in quality of life, functional status, cardiac performance, and overall survival.1 Catheter ablation, which is centered on electrical isolation of triggering foci within the pulmonary veins (PVI) through circumferential lesions around PV ostia, has been shown to result in sustained improvements in quality of life, decreased hospitalizations and, potentially, improved survival.2-4 PVI can be accomplished by percutaneous catheter-based thermo-coagulation (burning) with radiofrequency (RF) energy delivery or alternatively by thermo-cooling (freezing) with a cryoballoon catheter.5 Cryothermal ablation with a cryoballoon catheter offers an efficacious means to achieve PVI that is safer than the established technique. Although cryoballoon ablation has been used in clinical practice for sometime, the optimal duration of cryoballoon ablation has not been determined. Moreover, the biophysics of cryo-lesion formation suggests that repeated short freezes ("freeze-thaw-freeze" cycles) may be more efficacious in achieving deep homogenous lesion when compared to prolonged freezing durations. This grant proposal is to verify if repeated short freezing cycles are more efficacious (i.e., fewer recurrence of AF), and safer, than the established standard of long, single freeze cycles.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01913522
Study type Interventional
Source University of British Columbia
Contact
Status Completed
Phase N/A
Start date September 2014
Completion date March 2019
View Details
See also
  Status Clinical Trial Phase
Completed NCT05970120 - A Study of Intracardiac Ultrasound With the NUVISION NAV Ultrasound Catheter N/A
Recruiting NCT06014996 - Comparison of PFA vs. RFA in Patients With Symptomatic Paroxysmal Atrial Fibrillation. N/A
Completed NCT03624881 - Evaluation of VISITAG SURPOINT™ Module With External Processing Unit (EPU) Phase 4
Recruiting NCT05416086 - iCLAS™ Cryoablation System Post-Market Clinical Follow-up (PMCF) Study N/A
Recruiting NCT05905835 - Treatment of PAF With the Synaptic System N/A
Active, not recruiting NCT05618340 - PFA for Paroxysmal Atrial Fibrillation N/A
Active, not recruiting NCT05534581 - SINGLE SHOT CHAMPION Phase 4
Not yet recruiting NCT05024630 - Renal Denervation and pUlmonary Vein isolAtion With cryoabLation on Patients With Atrial Fibrillation and hypErtension N/A
Completed NCT02610803 - Paroxysmal Atrial Fibrillation in Patients With Acute Ischemic Stroke N/A
Terminated NCT01925885 - Focal Impulse and Rotor Modulation Ablation Trial for Treatment of Paroxysmal Atrial Fibrillation (FIRMAT-PAF) N/A
Withdrawn NCT01917981 - Testing the Accuracy of a Personal Heart Rhythm Monitor to Detect Prolonged Paroxysmal Atrial Fibrillation Phase 3
Completed NCT01693107 - Atrial Fibrillation Force Contact Ablation Study
Completed NCT01842529 - Botulinum Toxin Injection in Epicardial Fat Pads To Treat Atrial Fibrillation After Cardiac Surgery Phase 2
Completed NCT00971204 - Clinical Study of the CardioFocus Endoscopic Ablation System - Adaptive Contact (EAS-AC) for the Treatment of Symptomatic Atrial Fibrillation Phase 2
Completed NCT05043883 - Automated Assessment of PVI Using a Novel EP Recording System N/A
Recruiting NCT05172765 - Biomarker-Guided Optimization of Transcutaneous Vagal Stimulation for Atrial (BiG tVNS-AF) N/A
Recruiting NCT04529785 - Added Value of Vein of Marshal Ethanol Infusion Compared to Superior Vena Cava Isolation Alone in Patients Undergoing Repeat Ablation for Recurrent Paroxysmal Atrial Fibrillation Despite Durable PV Isolation N/A
Completed NCT04022954 - HD Mapping of Atrial Fibrillation in Asia Pacific
Completed NCT00964392 - NAVISTAR® THERMOCOOL® Catheter Post Approval Registry Phase 4
Recruiting NCT03912324 - Computed Tomogram Myocardial Thickness Map Guided pulmOnary Vein iSolaTion vs. Empirical Pulmonary Vein Isolation in Cryoballoon Ablation for Paroxysmal Atrial Fibrillation (UTMOST AF II) N/A