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  • Title: Long-term outcomes after "Zero X-ray" arrhythmia ablation.
    Author: Giaccardi M, Mascia G, Paoletti Perini A, Giomi A, Cartei S, Milli M.
    Journal: J Interv Card Electrophysiol; 2019 Jan; 54(1):43-48. PubMed ID: 29948584.
    Abstract:
    PURPOSE: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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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