Atrial fibrillation Atrial fibrillation
Conditions
Interventions
Low Ablation Index group
The left pulmonary vein is energized with a target Ablation Index of 550 from the canopy to the anterior wall of the carina, and 400 from the anterior wall of the left inferio
Catheter ablation
Sponsors
Shizuta Satoshi
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: All of the following criteria should be met. (1) Patients undergoing initial ablation for atrial fibrillation (regardless of duration). (2) Female/male patients who are aged 20 years or older and 85 years or younger at the time of consent/enrollment.
Exclusion criteria
Exclusion criteria: Patients should be excluded if any of the following conditions apply (1) Patients with contraindications to anticoagulation. (2) Patients with thrombus in the left atrium. (3) Other patients who are judged by the principal investigator or sub-investigator to be inappropriate for this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Acute effects of expanded pulmonary vein isolation by High Ablation Index (successful isolation in one round of pulmonary vein energization, presence of reconduction after waiting, presence of dormant conduction by ATP administration)), safety evaluation (complications, procedure time, fluoroscopy time) | — |
Secondary
| Measure | Time frame |
|---|---|
| Chronic phase effects of expanded pulmonary vein isolation by High Ablation Index (excluding the blanking period within 3 months after ablation, the rate of recurrent atrial arrhythmias lasting longer than 30 seconds at 12 months, status under antiarrhythmic medication, and changes in quality of life). | — |
Contacts
Public ContactShushi Nishiwaki
Kyoto University Hospital
Outcome results
None listed