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Войти в исследования Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology · 2025
Fluoroless cavotricuspid isthmus ablation of typical atrial flutter achieves success with shorter radiofrequency and procedural times.
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Jacint Sofia, Portugal Guilherme, Santos Hélder, Silva Cunha Pedro, Valente Bruno, Lousinha Ana, Delgado Ana Sofia, Cruz Ferreira Rui, Martins Oliveira Mário
Аннотация
INTRODUCTION AND OBJECTIVES: Cavotricuspid isthmus (CTI) ablation for typical atrial flutter (AFL) has improved in recent years, especially with three-dimensional (3D) electroanatomic mapping systems. These tools allow a better understanding of the arrhythmia with higher ablation success rates while reducing radiation exposure. However, most ablation procedures still require varying amounts of fluoroscopy. Our aim was to examine whether fluoroless CTI ablation is effective and safe in reducing AFL recurrence, compared with CTI ablation using fluoroscopy.
METHODS: We conducted a retrospective analysis of CTI ablations performed at a tertiary center between December 2010 and December 2022. Patients were divided into two groups: fluoroless and fluoroscopic, according to the use of radiation. Procedural duration, fluoroscopy time (FT), radiofrequency time (RF), acute complications and recurrence rates at one year were analyzed.
RESULTS: A total of 324 CTI ablations were performed. Mean age was 62.3±14.0 years, with 78.1% male patients. The FT was zero in the fluoroless group (n=31), and 7.0±7.0 minutes in the fluoroscopic group (n=293) (p<0.001). There was no statistically significant difference between the two groups, regarding AFL recurrence at one year. RF was shorter in the fluoroless group (8±4 vs. 14±11 minutes, p<0.001). Total time procedure duration was shorter in the fluoroless group (60±20 minutes vs. 99±45 minutes, p<0.001). There were no acute complications.
CONCLUSION: Fluoroless CTI ablation, avoiding any radiation exposure to the patient and operator, can be performed in patients with typical AFL, without compromising duration, safety or efficacy of the procedure.
METHODS: We conducted a retrospective analysis of CTI ablations performed at a tertiary center between December 2010 and December 2022. Patients were divided into two groups: fluoroless and fluoroscopic, according to the use of radiation. Procedural duration, fluoroscopy time (FT), radiofrequency time (RF), acute complications and recurrence rates at one year were analyzed.
RESULTS: A total of 324 CTI ablations were performed. Mean age was 62.3±14.0 years, with 78.1% male patients. The FT was zero in the fluoroless group (n=31), and 7.0±7.0 minutes in the fluoroscopic group (n=293) (p<0.001). There was no statistically significant difference between the two groups, regarding AFL recurrence at one year. RF was shorter in the fluoroless group (8±4 vs. 14±11 minutes, p<0.001). Total time procedure duration was shorter in the fluoroless group (60±20 minutes vs. 99±45 minutes, p<0.001). There were no acute complications.
CONCLUSION: Fluoroless CTI ablation, avoiding any radiation exposure to the patient and operator, can be performed in patients with typical AFL, without compromising duration, safety or efficacy of the procedure.