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12.06.2018 | Ausgabe 1/2019

Journal of Interventional Cardiac Electrophysiology 1/2019

Long-term outcomes after “Zero X-ray” arrhythmia ablation

Journal of Interventional Cardiac Electrophysiology > Ausgabe 1/2019
Marzia Giaccardi, Giuseppe Mascia, Alessandro Paoletti Perini, Andrea Giomi, Stella Cartei, Massimo Milli
Wichtige Hinweise
All six authors take responsibility for all aspects of the reliability and freedom from bias of the data presented and their discussed interpretation.



Radiation exposure related to conventional tachyarrhythmia radiofrequency catheter ablation (RFCA) carries small but definite risk for both patients and operators. Today, non-fluoroscopic mapping systems enable to perform catheter ablation with minimal or zero fluoroscopy. The purpose of this study was to evaluate the long-term outcome of patients who had undergone “Zero X-ray” ablation, since no information is available on the very long-term benefits.


A total of 272 arrhythmias in 266 patients have been treated with catheter ablation by means of a zero-ray approach guided only by a nonconventional mapping system (EnSite NavX™, Ensite™ Velocity™ mapping system; subsequently Ensite™ Precision™ Abbott, St. Paul, MN). Fluoroscopy was never used.


Over a period of 6 years, patients were followed up for an average of 2.9 ± 1.6 years. A 100% rate of acute success was observed in the study population, with a complication rate of 0.8%. Chronic success was achieved in 90.8% of the total number of procedures (272). Patients in whom the same arrhythmia recurred during follow-up underwent to a redo catheter ablation procedure in 60.0% of cases, while the remaining 40.0% underwent pharmacological treatment. A new post-ablation arrhythmia occurred in 7.7% of the sample.


The non-fluoroscopic approach is a feasible and safe alternative to fluoroscopy for arrhythmias ablation. This method ensures low complications rates, high acute procedural success rates, and comparable long-term outcomes with clinical benefits for both patients and physicians. The complete elimination of fluoroscopy during catheter ablation is advantageous and does not reduce patient safety.

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