The very high power-short duration (vHPSD) catheter, is a novel CF catheter optimized for temperature-controlled ablation with microelectrodes and 6 thermocouples for real-time temperature monitoring during ablation. The associated vHPSD algorithm modulates power to maintain target temperature during these vHPSD lesions (90 W, 4 s). In preclinical models, vHPSD ablation with this novel catheter has improved atrial linear lesion contiguity, transmurality, and durability and has substantially reduced radiofrequency ablation times, but with a safety profile similar to those of standard irrigated radiofrequency ablation catheters.~The QDOT -FAST study demonstrated the clinical feasibility and safety of vHPSD ablation. Procedure and fluoroscopy times were substantially lower than historical standard ablation with point-by-point catheters.~The aim of the present study is to compare the safety and short-term performance between THERMOCOOL SMARTTOUCH SF-5D QDOT system used with fast ablation mode and the standard Thermocool Smartouch SF in treatment of patients with atrial fibrillation (AF).
The aim of the present study is to compare the safety and short-term performance between THERMOCOOL SMARTTOUCH SF-5D QDOT system used with fast ablation mode and the standard Thermocool Smartouch SF in treatment of patients with atrial fibrillation (AF).