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2004, Number 2

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Gac Med Mex 2004; 140 (2)

Long-Term Follow-Up of 413 Patients with Atrioventricular Accessory Pathway Who Underwent Radiofrequency Cartheter Ablation.

Roberto Castañeda-Mendoza, Pedro Iturralde-Torres, Luis Colín-Lizalde, Sergio Kershenovich, Milton Guevara-Valdivia, Diana Arteaga, Rodríguez CL

Language: Spanish
References: 27
Page: 117-122
PDF size: 454.52 Kb.


ABSTRACT

Objective: the aim of this study was shown clinical characteristics and follow-up of patients with atrioventricular reentrant tachycardia (AVRT) who underwent radiofrequency catheter ablation (RCA) therapy. Material and Methods: from April 1992 to December 1995, 413 patients with AVRT underwent RCA therapy. Results: two hundred thirty four men (57%) and one hundred seventy nine women (43%) aged 31.3 ± 16-3 years were studied. 437 single accessory pathways were found; 24 had multiple accessory pathways. Ablation therapy was successful in 381 accessory pathways. During follow-up of 7 years, AVRT recurred in 51 patients (13%) and in 80% this occurred within the first 3 months after the procedure. 56 patients underwent a second RCA therapy with success in 35 patients (83.5); two reoccurred (5.7%); 365 accessory pathways (83.5) remained without evidence of preexcitation AVRT. Conclusions: during follow-up, these patients with successful ablation therapy remained without symptoms. In patients who underwent a second RCA therapy, atrioventricular reentrant mechanism was always present.


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