Author + information
- L. Vitali-Serdoz,
- D. Bastian,
- S. Poli,
- J. Walascheck,
- M. Brunelli,
- P. Richter,
- J. Schwab,
- H. Rittger,
- M. Pauschinger and
- K. Göhl
Electrophysiology procedures (EP) are traditionally performed under fluoroscopic guidance. The use of different three-dimensional electro-anatomical mapping (3D-EAM) systems for right-sided arrhythmia ablation may differently effect procedure duration and radiation exposure.
We evaluated 301 consecutive patients undergoing AVNRT ablation at two centers. 242 patients ablated with Carto®3 (Biosense Webster, Diamond Bar, CA) were compared to 59 patients using Ensite NavX/Precision™ (Abbott, SJM, St Paul, MN).
Patients characteristics and procedural findings are summarized in the Table.
Patients undergoing Ensite guided EPs were slightly older (p=0.03). The two groups were not significantly different regarding BMI. There were significant differences in fluoroscopy time and dose, having the Ensite guided EPs the lowest exposure (p <0.005 and p <0.001, respectively), although a longer procedure duration (p=0.01). The number of procedures with complete elimination of fluoroscopy was significantly higher in Ensite NavX™ guided EPs (p<0.001). No major complications occurred.
|AVNRT||Carto ®||Ensite ™||P-value|
|Male/Female (%)||91/145 (40/60%)||21/38 (36/64%)|
|Mean age (years)||55.7±17.7||61.6±21.5||0.03|
|Procedure duration (min)||123.4±39.8||105.1±45.6||0.01|
|Fluoroscopy time (min)||4.3±8.1||1.1±3.4||0.005|
|No-X-ray procedures, n (%)||42 (17.4%)||41 (73.2%)||<0.001|
BMI body mass index, DAP dose area product
When compared to Carto®3 the use of Ensite NavX™ for routine AVNRT ablation is associated with a significant reduction in fluoroscopy exposure allowing successful procedures with complete elimination of fluoroscopy in >70%.