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[Radiofrequency ablation in the treatment of supraventricular tachyarrhythmia. Experience with 500 consecutive patients].
Arch Inst Cardiol Mex. 1995 Nov-Dec; 65(6):503-19.AI

Abstract

Several reports have demonstrated that radiofrequency catheter ablation provides effective control of a variety of supraventricular tachyarrhythmias. This report details the results of radiofrequency catheter ablation in 500 consecutive patients with a wide variety of supraventricular tachycardia treated at the Instituto Nacional de Cardiología "Ignacio Chaávez". Tachyarrhythmias were associated with the presence of an accessory pathway in 355 patients (71%). The accessory pathways were capable of both anterograde and retrograde conduction in 220 of cases (60%), only retrograde conduction in 146 (40%), dual accessory pathways were present in 11 patients (2.2%) giving a total of 366 accessory pathways. The mechanism of the arrhythmia was AV nodal reentrant tachycardia in 115 patients (23%). Ablation of the reentrant circuit of atrial flutter within the right atrium was attempted in 15 (15%) patients and a primary atrial tachycardia in 3 patients (0.7%). AV node ablation and permanent pacemaker implantation were performed in 11 patients (2%). Radiofrequency catheter ablation was successful in 312 of 355 (87.9%) patients with accessory pathways 312 of 366 (85.2%) pathways with a complication rate of 6/355 (2%) and a recurrence rate of (12.4%). AV nodal reentry was successfully abolished in 110 of 115 patients by selective ablation of the slow pathway in 92/96 (95.8%) patients and the fast pathway in 18/19 (94.7%) patients. The complication rate of this group was 7/115 (6.0%) with a recurrence rate of 16 patients (12%). The reentrant circuit of atrial flutter was ablated successfully in 13 of 15 patients with recurrent atrial flutter in (27%) patients. 2/3 (66%) primary atrial tachycardia were successfully ablated. Complete AV block was achieved in 11 of 11 patients with atrial fibrillation or flutter treated by AV nodal ablation without complications or recurrence. The results of this series of patients demonstrates the safety and efficacy of radiofrequency ablation for the treatment of a wide variety of supraventricular arrhythmias with high rate of success and low risk of complications.

Authors+Show Affiliations

Departamento de electrofisiología del Instituto Nacional de Cardiología Ignacio Chávez, México.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
English Abstract
Journal Article
Review

Language

spa

PubMed ID

8948685

Citation

Iturralde Torres, P, et al. "[Radiofrequency Ablation in the Treatment of Supraventricular Tachyarrhythmia. Experience With 500 Consecutive Patients]." Archivos Del Instituto De Cardiologia De Mexico, vol. 65, no. 6, 1995, pp. 503-19.
Iturralde Torres P, Colín Lizalde L, Kershenovich S, et al. [Radiofrequency ablation in the treatment of supraventricular tachyarrhythmia. Experience with 500 consecutive patients]. Arch Inst Cardiol Mex. 1995;65(6):503-19.
Iturralde Torres, P., Colín Lizalde, L., Kershenovich, S., García Moreno, J., Marroquín, O., Cordero, A., Lara, S., & González Hermosillo, J. A. (1995). [Radiofrequency ablation in the treatment of supraventricular tachyarrhythmia. Experience with 500 consecutive patients]. Archivos Del Instituto De Cardiologia De Mexico, 65(6), 503-19.
Iturralde Torres P, et al. [Radiofrequency Ablation in the Treatment of Supraventricular Tachyarrhythmia. Experience With 500 Consecutive Patients]. Arch Inst Cardiol Mex. 1995 Nov-Dec;65(6):503-19. PubMed PMID: 8948685.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Radiofrequency ablation in the treatment of supraventricular tachyarrhythmia. Experience with 500 consecutive patients]. AU - Iturralde Torres,P, AU - Colín Lizalde,L, AU - Kershenovich,S, AU - García Moreno,J, AU - Marroquín,O, AU - Cordero,A, AU - Lara,S, AU - González Hermosillo,J A, PY - 1995/11/1/pubmed PY - 1995/11/1/medline PY - 1995/11/1/entrez SP - 503 EP - 19 JF - Archivos del Instituto de Cardiologia de Mexico JO - Arch Inst Cardiol Mex VL - 65 IS - 6 N2 - Several reports have demonstrated that radiofrequency catheter ablation provides effective control of a variety of supraventricular tachyarrhythmias. This report details the results of radiofrequency catheter ablation in 500 consecutive patients with a wide variety of supraventricular tachycardia treated at the Instituto Nacional de Cardiología "Ignacio Chaávez". Tachyarrhythmias were associated with the presence of an accessory pathway in 355 patients (71%). The accessory pathways were capable of both anterograde and retrograde conduction in 220 of cases (60%), only retrograde conduction in 146 (40%), dual accessory pathways were present in 11 patients (2.2%) giving a total of 366 accessory pathways. The mechanism of the arrhythmia was AV nodal reentrant tachycardia in 115 patients (23%). Ablation of the reentrant circuit of atrial flutter within the right atrium was attempted in 15 (15%) patients and a primary atrial tachycardia in 3 patients (0.7%). AV node ablation and permanent pacemaker implantation were performed in 11 patients (2%). Radiofrequency catheter ablation was successful in 312 of 355 (87.9%) patients with accessory pathways 312 of 366 (85.2%) pathways with a complication rate of 6/355 (2%) and a recurrence rate of (12.4%). AV nodal reentry was successfully abolished in 110 of 115 patients by selective ablation of the slow pathway in 92/96 (95.8%) patients and the fast pathway in 18/19 (94.7%) patients. The complication rate of this group was 7/115 (6.0%) with a recurrence rate of 16 patients (12%). The reentrant circuit of atrial flutter was ablated successfully in 13 of 15 patients with recurrent atrial flutter in (27%) patients. 2/3 (66%) primary atrial tachycardia were successfully ablated. Complete AV block was achieved in 11 of 11 patients with atrial fibrillation or flutter treated by AV nodal ablation without complications or recurrence. The results of this series of patients demonstrates the safety and efficacy of radiofrequency ablation for the treatment of a wide variety of supraventricular arrhythmias with high rate of success and low risk of complications. SN - 0020-3785 UR - https://www.unboundmedicine.com/medline/citation/8948685/[Radiofrequency_ablation_in_the_treatment_of_supraventricular_tachyarrhythmia__Experience_with_500_consecutive_patients]_ DB - PRIME DP - Unbound Medicine ER -