Atrial fibrillation
Conditions
Interventions
The Rhythmia HDx mapping system and IntellaNav Stablepoint catheter are used for PVI. Before starting the ablation, a voltage map of the area around the pulmonary vein is created to assess the morphol
discretion due to the risk of a pop phenomenon. In principle, the goal is to reduce the local impedance by approximately 20-30 ohm with 40 W. If the value is not acquired, the ablation time is extende
Sponsors
Osaka University Graduate School of Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: AF ablation case with RFCA using the Rhythmia mapping system and IntellaNav Stablepoint RFCA catheter (Boston scientific) and initial PVI.
Exclusion criteria
Exclusion criteria: Under 20 years of age Contraindication to ablation therapy Contraindication to anticoagulation Pregnancy Cases in which consent could not be obtained Other cases that the attending physician deems inappropriate Patients participating in other clinical trials
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulmonary vein isolation is performed while varying the generator impedance by switching the number of counter electrodes, and the relationship between local impedance reduction at adjacent sites and generator impedance is analyzed using data automatically recorded on the RhythmiaTM mapping system workstation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Other parameters related to the ablation and their relation to generator impedance are also analyzed using ablation data automatically recorded on the RhythmiaTM mapping system workstation. | — |
Countries
Japan
Contacts
Public ContactTakayuki Sekihara
Osaka University Graduate School of Medicine Department of Cardiovascular Medicine
Outcome results
None listed