Atrial fibrillation Circulatory System Arrhythmia
Conditions
Interventions
The procedure will be performed by a Consultant Cardiologist or Specialist Registrar with experience of catheter ablation for AF. All patients recruited will have a clinical indication for AF ablation
Sponsors
Brighton and Sussex University Hospitals NHS Trust
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Documented recurrence of AF 2. One previous AF ablation 3. Suitable for clinically indicated catheter ablation 4. Aged >18 years
Exclusion criteria
Exclusion criteria: 1. Pregnancy or planning pregnancy 2. Current enrolment in another investigational trial 3. Pulmonary vein isolation on mapping at baseline
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Radiofrequency energy time to isolate reconnected pulmonary veins (measured in seconds during the procedure) | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Mapping times for both catheters (HD Grid and Circular mapping catheter) (measured in seconds during the procedure using the Ensite electro-anatomical mapping system) 2. Ability to correctly identify the gaps in pulmonary veins (recorded during the procedure by analysis of electroanatomical maps by cardiac electrophysiologist) 3. Location of isolation of pulmonary vein (recorded during procedure using electroanatomical maps) 4. Duration of ablation procedure (recorded during the procedure) 5. Any procedural complication (pericardial effusion, bleeding >2 units, phrenic nerve palsy and other) (recorded during and after the procedure via routine clinical follow up within 30 days) | — |
Countries
England, United Kingdom
Outcome results
None listed