Key result
CartoUnivu is linked to ~43% less fluoroscopy time vs conventional mapping during VT ablation.
Why the study?
The impact of the CartoUnivu technology on fluoroscopy exposure compared to conventional electroanatomical mapping in VT ablation was evaluated.
Does the CartoUnivu image integration module reduce fluoroscopy exposure in patients undergoing ventricular arrhythmia ablation?
Cohort (n=46)
Does the CartoUnivu image integration module reduce fluoroscopy exposure in patients undergoing ventricular arrhythmia ablation?
The use of a fluoroscopy image integration module during ventricular tachycardia ablation significantly reduces radiation exposure time and dose compared to conventional mapping.
Associated with lower fluoroscopy exposure in VT ablation; extends observational data but leaves open need for randomized confirmation.
BACKGROUND: The impact of the CartoUnivu™ technology (Biosense Webster, Diamond Bar, CA, USA) on fluoroscopy exposure compared to a conventional approach using electroanatomical mapping (Carto 3™) was evaluated in patients undergoing radiofrequency ablation for ventricular tachyarrhythmias (VT). METHODS AND RESULTS: We prospectively evaluated 23 patients undergoing VT ablation using the CartoUnivu™ technology. The CartoUnivu™ Module integrates fluoroscopic images and cine loops into the electroanatomical mapping system. As a control group, 23 out of 88 VT patients (ablated using conventional fluoroscopy supplemented by electromagnetic mapping with the Carto 3™ System) were matched for age, gender, body surface area, operator, redo-procedure, presence of coronary artery disease, and left ventricular dysfunction using propensity score matching. A significant reduction in fluoroscopy exposure was observed in the CartoUnivu™ group when compared to the conventional group (10.57 ± 7.93 minutes vs 18.52 ± 11.24 minutes, P_= 0.008; 611 cGy/cm(2) vs 1650 cGy/cm(2) , P = 0.001). In multivariate analysis, the CartoUnivu™ module was an independent predictor of reduced fluoroscopy use. CONCLUSION: This is a report on the clinical application of the CartoUnivu system for VT ablation. CartoUnivu™ markedly reduced fluoroscopy time and dose compared to conventional fluoroscopy/electroanatomical mapping.
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Reents et al. (2015) conducted a cohort in Ventricular tachyarrhythmias (n=46). CartoUnivu technology vs. Conventional approach using electroanatomical mapping (Carto 3) was evaluated on Fluoroscopy time (p=0.008). The CartoUnivu system significantly reduced fluoroscopy time (10.57 vs 18.52 minutes, P=0.008) and dose (611 vs 1650 cGy/cm2, P=0.001) compared to conventional mapping during VT ablation.
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