Ignite Creation Date:
2025-12-25 @ 3:46 AM
Ignite Modification Date:
2025-12-26 @ 2:33 AM
Study NCT ID:
NCT06846502
Status:
ACTIVE_NOT_RECRUITING
Last Update Posted:
2025-02-26
First Post:
2025-02-20
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
High Power Short Duration Radiofrequency Ablation of Atrial Fibrillation Using the QDOT MICRO™ Catheter
Sponsor:
Amsterdam UMC, location VUmc
Organization:
Study Overview
Official Title:
High Power Short Duration Radiofrequency Ablation of Atrial Fibrillation Using the QDOT MICRO™ Catheter - Q-POWER STUDY
Status:
ACTIVE_NOT_RECRUITING
Status Verified Date:
2025-01
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
Q-POWER
Brief Summary:
Atrial fibrillation (AF) is the most common cardiac arrhythmia worldwide, characterized by rapid and disorganized atrial activation leading to an irregular heart rhythm. Pulmonary vein isolation (PVI) ablation is the gold standard for catheter ablation based therapy. However, recurrence of AF after PVI is common, often due to the inability to create durable ablation lesions surrounding the pulmonary veins (PV). Conventional radiofrequency (RF) ablation is typically performed with power set at 30-40 Watt for a duration of 20-30 seconds. Previous studies have shown that ablation with very higher power and shorter duration (vHPSD, 90W/4sec) may result in more continuous and more durable ablation lesions with a similar safety profile as compared to conventional ablation lesions. This new technique may consequently improve outcomes of RF ablation for AF. Moreover, HPSD ablation of AF may significantly reduce RF duration, which could lead to shorter anaesthesia, fluoroscopy and procedure duration.
Cardiac magnetic resonance imaging (CMR) enables studying cardiac volumes, function and atrial tissue characteristics. By applying this imaging strategy before ablation, and directly (\<72 hours) and later (3 months) after ablation, transient (edema) and persistent (fibrosis) effects of RF ablation in the left atrial wall and surrounding tissues may be visualized and quantified.
The Q-POWER study aims to assess the effects of VHPSD RF ablation on 1) procedural characteristics, 2) acute and long-term ablation lesion formation and collateral tissue damage as assessed by CMR and 3) clinical outcomes in AF patients.
Cardiac magnetic resonance imaging (CMR) enables studying cardiac volumes, function and atrial tissue characteristics. By applying this imaging strategy before ablation, and directly (\<72 hours) and later (3 months) after ablation, transient (edema) and persistent (fibrosis) effects of RF ablation in the left atrial wall and surrounding tissues may be visualized and quantified.
The Q-POWER study aims to assess the effects of VHPSD RF ablation on 1) procedural characteristics, 2) acute and long-term ablation lesion formation and collateral tissue damage as assessed by CMR and 3) clinical outcomes in AF patients.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
Secondary ID Infos
| Secondary ID | Type | Domain | Link | View |
|---|---|---|---|---|
| IIS-566 | OTHER_GRANT | Biosense Webster | View |