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[Radiofrequency ablation in the treatment of tachyarrhythmias. Experience concerning 1,000 consecutive patients].
Gac Med Mex. 1999 Nov-Dec; 135(6):559-75.GM

Abstract

Several reports have demonstrated that radiofrequency catheter ablation provides effective control of a variety of tachyarrhythmias. This report details the results of radiofrequency catheter ablation in 1,000 consecutive patients with a wide variety of tachyarrhythmias treated in the Instituto Nacional de Cardiología "Ignacio Chavez". Tachyarrhythmias were associated with the presence of an accessory pathway in 700 patients (70%). Dual accessory pathways were present in 21 patients, giving a total of 722 accessory pathways. The mechanism of the arrhythmia was AV nodal reentrant tachycardia in 204 patients (20.4%). Ablation of the reentrant circuit of atrial flutter within the right atrium was attempted in 56 (5.6%) patients and a primary atrial tachycardia in five patients (0.5%). AV node ablation and permanent pacemaker implantation were performed in 17 patients (1.7%). Finally we performed radiofrequency catheter ablation in 22 (2.2%) patients with ventricular tachycardia. Radiofrequency catheter ablation was successful in 630 of 700 (90%) patients with accessory pathways with a complication rate of 9/700 (1.2%) and a recurrence rate of 73 (12.4%). AV nodal reentry was successfully abolished in 190 of 204 (93%) patients by selective ablation of the slow pathway in 168/180 (93.3%) patients and the fast pathway in 22/24 (92%) patients. The complication rate of this group was 7/204 (3.4%) with a recurrence rate of 30 patients (14.2%). The reentrant circuit of atrial flutter was ablated successfully in 41 of 56 (73%). Four/five (80%) of patients with primary atrial tachycardia were successfully ablated. Complete AV block was achieved in 17/17 patients with atrial fibrillation or flutter treated by AV nodal ablation without complications or recurrence. The procedure was successful in 17/22 (77%) of patients with ventricular tachycardia. The results of this series of patients demonstrate the safety and efficacy of radiofrequency ablation for the treatment of a wide variety of tachyarrhythmias with high rate of success 899/1,000 (89.9%) and with an 1 1.8% of recurrence, low risk of complications (1.5%) and no mortality.

Authors+Show Affiliations

Departamento de Electrofisiología, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, México, D.F.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
English Abstract
Journal Article

Language

spa

PubMed ID

10605256

Citation

Iturralde-Torres, P, et al. "[Radiofrequency Ablation in the Treatment of Tachyarrhythmias. Experience Concerning 1,000 Consecutive Patients]." Gaceta Medica De Mexico, vol. 135, no. 6, 1999, pp. 559-75.
Iturralde-Torres P, Colín-Lizalde L, Kershenovich S, et al. [Radiofrequency ablation in the treatment of tachyarrhythmias. Experience concerning 1,000 consecutive patients]. Gac Med Mex. 1999;135(6):559-75.
Iturralde-Torres, P., Colín-Lizalde, L., Kershenovich, S., & González-Hermosillo, J. A. (1999). [Radiofrequency ablation in the treatment of tachyarrhythmias. Experience concerning 1,000 consecutive patients]. Gaceta Medica De Mexico, 135(6), 559-75.
Iturralde-Torres P, et al. [Radiofrequency Ablation in the Treatment of Tachyarrhythmias. Experience Concerning 1,000 Consecutive Patients]. Gac Med Mex. 1999 Nov-Dec;135(6):559-75. PubMed PMID: 10605256.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Radiofrequency ablation in the treatment of tachyarrhythmias. Experience concerning 1,000 consecutive patients]. AU - Iturralde-Torres,P, AU - Colín-Lizalde,L, AU - Kershenovich,S, AU - González-Hermosillo,J A, PY - 1999/12/22/pubmed PY - 1999/12/22/medline PY - 1999/12/22/entrez SP - 559 EP - 75 JF - Gaceta medica de Mexico JO - Gac Med Mex VL - 135 IS - 6 N2 - Several reports have demonstrated that radiofrequency catheter ablation provides effective control of a variety of tachyarrhythmias. This report details the results of radiofrequency catheter ablation in 1,000 consecutive patients with a wide variety of tachyarrhythmias treated in the Instituto Nacional de Cardiología "Ignacio Chavez". Tachyarrhythmias were associated with the presence of an accessory pathway in 700 patients (70%). Dual accessory pathways were present in 21 patients, giving a total of 722 accessory pathways. The mechanism of the arrhythmia was AV nodal reentrant tachycardia in 204 patients (20.4%). Ablation of the reentrant circuit of atrial flutter within the right atrium was attempted in 56 (5.6%) patients and a primary atrial tachycardia in five patients (0.5%). AV node ablation and permanent pacemaker implantation were performed in 17 patients (1.7%). Finally we performed radiofrequency catheter ablation in 22 (2.2%) patients with ventricular tachycardia. Radiofrequency catheter ablation was successful in 630 of 700 (90%) patients with accessory pathways with a complication rate of 9/700 (1.2%) and a recurrence rate of 73 (12.4%). AV nodal reentry was successfully abolished in 190 of 204 (93%) patients by selective ablation of the slow pathway in 168/180 (93.3%) patients and the fast pathway in 22/24 (92%) patients. The complication rate of this group was 7/204 (3.4%) with a recurrence rate of 30 patients (14.2%). The reentrant circuit of atrial flutter was ablated successfully in 41 of 56 (73%). Four/five (80%) of patients with primary atrial tachycardia were successfully ablated. Complete AV block was achieved in 17/17 patients with atrial fibrillation or flutter treated by AV nodal ablation without complications or recurrence. The procedure was successful in 17/22 (77%) of patients with ventricular tachycardia. The results of this series of patients demonstrate the safety and efficacy of radiofrequency ablation for the treatment of a wide variety of tachyarrhythmias with high rate of success 899/1,000 (89.9%) and with an 1 1.8% of recurrence, low risk of complications (1.5%) and no mortality. SN - 0016-3813 UR - https://www.unboundmedicine.com/medline/citation/10605256/[Radiofrequency_ablation_in_the_treatment_of_tachyarrhythmias__Experience_concerning_1000_consecutive_patients]_ DB - PRIME DP - Unbound Medicine ER -