LATEST CLINICAL TRIALS AND FUTURE OF NOVEL TEMPERATURE-ADJUSTING DIAMONDTEMP CATHETER

Introduction:
Standard radiofrequency ablation for atrial fibrillation requires open-irrigated catheter.
DiamondTemp catheter, which is designed with diamond-embedded catheter tip and tissue surface
temperature thermocouples, showed feasibility in TRAC-AF study. The DiamondTemp was
associated with faster application, shorter procedure and fluoroscopic time than with a force-sensing
irrigated catheter. The aim of this presentation is to report our experiences of DiamondTemp catheter
through the latest studies we have enrolled in.
Methods and Results:
In DiamondAF study, which was designed for paroxysmal AF patients with point-by-point PV
isolation, 60 patients (mean age of 63±9 y.o., 27 males) have been enrolled. Average application
time and total ablation time in patients with DiamondTemp group were remarkably shorter than
those in patients with control group using a standard force-sensing irrigated catheter (13±2sec vs.
35±5sec; pFASTR study, designed for both paroxysmal and persistent AF patient, enables catheter dragging
technique and combination of PV isolation and non-PV approach including box isolation, linear
ablation, and other procedures especially for persistent AF patients. Progress will be reported in the
presentation.
Conclusions:
Novel temperature-controlled DiamomdTemp catheter could achieve faster and safe