2.4 Definitions
HPSD RFA: Ablation power≥40W, including the posterior wall, with ablation duration of 5 to 15s per site.
Conventional RFA: Ablation power limited to 20-35W, with a longer ablation duration of 10-30s per site.
Procedure time: Time from the application of local anesthesia to the withdrawal of all catheters.
RF time: Total time from the first to the last ablation site.
Fluoroscopy time: Total time for fluoroscopy from the start to the end of the procedure.
First-pass PVI: Rate of complete PVI after first-pass circumferential RF delivery.
Atrial arrhythmia recurrence: Any symptomatic or asymptomatic atrial arrhythmia lasting >30s after completing the blanking period post ablation.
Acute PVR: Acute reconnection was assessed at 20–30 minutes post ablation, and adenosine was administered intravenously (dosed to achieve transient heart block) or waiting for 30 minutes following the last RF application to assess PV reconnection,including spontaneous reconnection and dormant conduction.
Major complication:Complications that required any intervention or prolonged hospital stay including pericarditis, complete atrioventricular block, sinus node dysfunction, phrenic nerve palsy, stroke, pericardial effusion, vascular access issues, steam pop, esophageal lesions and death.