Relationship Between the Posterior Atrial Wall and the Esophagus: Esophageal Position and Temperature MEasurement During Atrial Fibrillation Ablation. (AWESOME-AF)
Atrial Arrhythmia
About this trial
This is an interventional treatment trial for Atrial Arrhythmia focused on measuring Atrial fibrillation, Atypical flutter, catheter-based ablation, radiofrequency ablation, left atrial wall thickness, atrio-esophageal relationship
Eligibility Criteria
Inclusion Criteria:
- Age > 18 years.
- Indication for any atrial fibrillation or left atrial flutter ablation procedure.
- Documented episodes of atrial arrhythmia (AF/AT/AFL)
- Signed informed consent.
Exclusion Criteria:
- Age < 18 years.
- Pregnancy.
- Impossibility to perform CT Scan.
- Impossibility to perform transesophageal echocardiography or to insert esophageal temperature monitoring probe.
- Concomitant investigation treatments.
- Medical, geographical and social factors that make study participation impractical
- Inability to give written informed consent.
- Patient's refusal to participate in the study.
Sites / Locations
- Teknon Medical Center
Arms of the Study
Arm 1
Arm 2
Experimental
Other
Intervention group or "PRINT" group
Control group
The ablation line previously drawn will be modified regarding the esophageal print position in order to avoid RF application within the red layer of the esophageal print, which is the zone where the atrioesophageal distance is shorter. The maximal distance and the area between the original line and the modified line will be noted. In cases when ablation through the red layer is unavoidable, the delivered energy can be lowered to an ablation index (AI) of 300 regardless of the local wall thickness. If the temperature rises above 39℃, ablation will be immediately stopped, and energy will be reduced.
The ablation line will not be modified from the original one drawn before randomization and RF applications will follow the regular path. If the temperature rises above 39℃, ablation will be immediately stopped, and energy will be reduced.