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- Title
Determinants of immediate success for catheter ablation of atrioventricular nodal reentry tachycardia in patients without junctional rhythm.
- Authors
Bagherzadeh, Ataallah; Keshavarzi, Tooraj; Farahani, Maryam; Goodarzynejad, Hamidreza
- Abstract
Background and purpose: To investigate the independent predictors of immediate success for atrioventricular nodal reentry tachycardia (AVNRT) catheter ablation in patients without accelerated junctional rhythm (JR). Methods: The study included 172 consecutive patients with AVNRT undergoing slow pathway ablation that had no JR during the radiofrequency pulses. The diagnosis of AVNRT was made using the classic criteria of documenting antegrade atrio-His or retrograde ventriculoatrial (VA) jump and arrhythmia induction. Successful ablation was defined as the inability to induce tachycardia with and without the infusion of isoproterenol and the absence of more than one AV-nodal echo. Results: The clinical independent predictors of successful ablation in the studied patients were identified as age ≥60, ablation-site location (mid-septal rather than posteroseptal), and baseline heart rate ≥100 beat per minute. The predictive performance of the risk model was very good and the calibration of the risk model was acceptable. Conclusions: Our study suggests predictive factors that can be used to gauge procedural success in AVNRT patients without accelerated JR during ablation.
- Subjects
CATHETER ablation; ATRIOVENTRICULAR node; TACHYCARDIA; ISOPROTERENOL; ARRHYTHMIA; PATIENTS
- Publication
Journal of Interventional Cardiac Electrophysiology, 2014, Vol 39, Issue 1, p19
- ISSN
1383-875X
- Publication type
Article
- DOI
10.1007/s10840-013-9839-x