Ablation of Atrioventricular Nodal Re-Entrant Tachycardia Combining Irrigated Flexible-Tip Catheters and Three-Dimensional Electroanatomic Mapping: Long-Term Outcomes

Background: Transcatheter ablation is the standasrd treatment for atrioventricular nodal re-entrant tachycardia (AVNRT). However, different techniques are available. Data about the use of irrigated flexible-tip catheters and three-dimensional electroanatomical mapping (3D EAM) for AVNRT ablation are...

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Bibliographic Details
Published in:Journal of cardiovascular development and disease 2021-05, Vol.8 (6), p.61
Main Authors: Malagù, Michele, Vitali, Francesco, Marchini, Federico, Fiorio, Alessio, Sirugo, Paolo, Mele, Daniela, Brieda, Alessandro, Balla, Cristina, Bertini, Matteo
Format: Article
Language:English
Subjects:
Ablation
arrhythmias
atrioventricular nodal re-entrant tachycardia
AVNRT
Cardiac arrhythmia
Catheters
Drug dosages
Drug therapy
electroanatomic mapping
Emergency medical care
irrigated catheter
Pacemakers
Physiology
Radiation
transcatheter ablation
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Summary:Background: Transcatheter ablation is the standasrd treatment for atrioventricular nodal re-entrant tachycardia (AVNRT). However, different techniques are available. Data about the use of irrigated flexible-tip catheters and three-dimensional electroanatomical mapping (3D EAM) for AVNRT ablation are scant. The aim of this study was to evaluate in long-term follow-up efficacy and safety of a novel approach for AVNRT treatment. Methods: This is a cohort single arm study with long-term follow-up. Patients with AVNRT were treated with catheter ablation by means of irrigated flexible-tip catheters combined with 3D EAM. Results: One-hundred-and-fifty patients were enrolled and followed-up for a median of 38 months (minimum 12, maximum 74). Acute procedural success rate was 96.7% (145/150 patients). During follow-up, 11 patients had arrhythmia recurrences (7.3%). No patient developed atrioventricular conduction block with need for pacemaker implantation (0%). Fourteen patients died during follow-up (9.3%). Conclusions: Acute procedural success and long-term follow-up show that AVNRT could be safely and effectively treated with irrigated flexible-tip catheters and 3D EAM.
ISSN:2308-3425
2308-3425
DOI:10.3390/jcdd8060061