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Minimal fluoroscopy approach for right‐sided supraventricular tachycardia ablation with a novel ablation technology: Insights from the multicenter CHARISMA clinical registry
Author(s) -
Cauti Filippo M.,
Rossi Pietro,
La Greca Carmelo,
Piro Agostino,
Di Belardino Natale,
Battaglia Alberto,
Ferraris Federico,
Pecora Domenico,
Lavalle Carlo,
Scalone Antonio,
Rossi Luca,
Di Cori Andrea,
Solimene Francesco,
Mantovan Roberto,
Pedretti Stefano,
Iaia Luigi,
Bianchi Stefano,
Anselmino Matteo
Publication year - 2021
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.15023
Subject(s) - medicine , fluoroscopy , supraventricular tachycardia , atrial flutter , ablation , tachycardia , catheter ablation , supraventricular arrhythmia , radiofrequency ablation , atrioventricular reentrant tachycardia , cardiology , radiology , nuclear medicine , accessory pathway , atrial fibrillation
Background No data exist on the ability of the novel Rhythmia 3‐D mapping system to minimize fluoroscopy exposure during transcatheter ablation of arrhythmias. We report data on the feasibility and safety of a minimal fluoroscopic approach using this system in supraventricular tachycardia (SVT) procedures. Methods Consecutive patients were enrolled in the CHARISMA registry at 12 centers. All right‐sided procedures performed with the Rhythmia mapping system were analyzed. The acquired electroanatomic information was used to reconstruct 3‐D cardiac geometry; fluoroscopic confirmation was used whenever deemed necessary. Results Three hundred twenty‐five patients (mean age = 56 ± 17 years, 57% male) were included: 152 atrioventricular nodal reentrant tachycardia, 116 atrial flutter, 41 and 16 right‐sided accessory pathway and atrial tachycardia, respectively. Overall, 27 481 s of fluoroscopy were used (84.6 ± 224 s per procedure, equivalent effective dose = 1.1 ± 3.7 mSv per patient). One hundred ninety‐two procedures (59.1%) were completed without the use of fluoroscopy (zero fluoroscopy, ZF). In multivariate analysis, the presence of a fellow in training (OR = 0.15, 95% CI: 0.05–0.46; p = .0008), radiofrequency application (0.99, 0.99–1.00; p = .0002), and mapping times (0.99, 0.99–1.00; p = .042) were all inversely associated with ZF approach. Acute procedural success was achieved in 97.8% of the cases (98.4 vs. 97% in the ZF vs. non‐ZF group; p = .4503). During a mean of 290.7 ± 169.6 days follow‐up, no major adverse events were reported, and recurrence of the primary arrhythmia was 2.5% (2.1 vs. 3% in the ZF vs. non‐ZF group; p = .7206). Conclusions The Rhythmia mapping system permits transcatheter ablation of right‐sided SVT with minimal fluoroscopy exposure. Even more, in most cases, the system enables a ZF approach, without affecting safety and efficacy.