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Clinical Trial Summary

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).


Clinical Trial Description

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). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04592497
Study type Interventional
Source Tel-Aviv Sourasky Medical Center
Contact Ehud Chorin, MD PhD
Phone 972527360498
Email udichorin5@gmail.com
Status Not yet recruiting
Phase N/A
Start date October 15, 2020
Completion date October 1, 2022

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