Treatment of PAF With the Synaptic System

The Synaptic Cryo Balloon must be used to isolate all targeted pulmonary veins. Entrance block will be confirmed in all targeted pulmonary veins (PVs) after a 20-minute waiting period or provocative testing with adenosine or isoproterenol. Any additional ablation in the LA beside PV isolation is not allowed in this protocol. Additional ablation of the cavo-tricuspid isthmus (CTI) with a conventional market-approved RF catheter is allowed only in case a typical atrial flutter is documented in prior patient history or occurs during the case (either spontaneously or inducible).