Key result
PentaRay multipolar mapping yields ~357% higher scar mapping density than Navistar and detects more LAVA.
Why the study?
Does a multipolar mapping catheter (PentaRay) improve the identification of scar and local abnormal ventricular activity compared to a standard ablation catheter (Navistar) in scar-related VT?
Population
4 sheep and 9 consecutive VT ablation patients from a single center.
Comparison
Substrate mapping and local abnormal ventricular… vs Substrate mapping and LAVA tagging using a…
Design
Cohort
Authors
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Multipolar mapping improves scar characterization and LAVA detection in VT ablation; extends RCT evidence favoring PentaRay over linear catheters.
Observational (n=9)
No
Does a multipolar mapping catheter (PentaRay) improve the identification of scar and local abnormal ventricular activity compared to a standard ablation catheter (Navistar) in scar-related VT?
Absolute Event Rate: 3.2% vs 0.7%
p-value: p=0.001
Berte et al. (2015) conducted an observational in Scar-related ventricular tachycardia (n=9). PentaRay (PR) multipolar mapping catheter vs. Navistar (NAV) mapping catheter was evaluated on Mapping density within the scar (points/cm2) (p=0.001). Multipolar mapping with the PentaRay catheter yielded higher mapping density within the scar compared to the Navistar catheter (3.2 vs. 0.7 points/cm2, P=0.001) and detected more LAVA.
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