Comparison of PV signal quality using a novel circular mapping and ablation catheter versus a standard circular mapping catheter

Abstract

Using the PVAC as a stand-alone strategy for mapping and ablation, one should be aware that in some cases, different signal morphology mimics PVI isolation. Adjustment of filter settings failed to improve signal quality. The use of an additional mapping catheter is recommended to become familiar with the particular signal morphology during the first PVAC cases or whenever there is a doubt about successful isolation of the pulmonary veins.

Pulmonary vein potential mapping in atrial fibrillation with high density and standard spiral (lasso) catheters: A comparative study

“…The impact of precise mapping, both prior and subsequent to PVI, is still controversial. Von Bary et al recommended the use of additional mapping catheters to improve the PV isolation rate when there is doubt concerning the signal quality in single‐shot (stand‐alone) strategies [11]. In a small study population of only 12 patients, Anter et al were recently able to demonstrate the superiority of mini‐basket catheters over circular lasso catheters for the detection of PVPs following PVI.…”

Esophageal Tissue Injury Following Pulmonary Vein Isolation Using the PVAC: Assessment by Endoscopy and Magnetic Resonance Imaging

“…The PVAC™ catheter and the GENius™ multichannel phased RF generator have been described previously . In brief, the PVAC catheter is a 9‐F, over‐the‐wire, circular, decapolar mapping and ablation catheter, which is designed to situate on the antral portion of the PVs.…”

“…The PVAC TM catheter and the GENius TM multichannel phased RF generator have been described previously. 21,22,24,28 In brief, the PVAC catheter is a 9-F, over-the-wire, circular, decapolar mapping and ablation catheter, which is designed to situate on the antral portion of the PVs. Each platinum electrode (3-mm long, 1.5-mm outer diameter, 3-mm spacing) has a thermocouple under the surface on the anterior side, which directly contacts the endocardium.…”

“…Compared to conventional irrigated‐tip ablation, this system uses relatively low power, with passive electrode cooling being achieved without active irrigation via the blood flow. The feasibility and safety of this device have been demonstrated in several studies . However, the impact of this new technology on the incidence of ETI has not been investigated satisfactorily.…”

“…The feasibility and safety of this device have been demonstrated in several studies. [20][21][22][23][24][25][26][27][28][29][30][31] However, the impact of this new technology on the incidence of ETI has not been investigated satisfactorily.…”