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[Radiofrequency ablation of the slow nodal pathway in cases of paroxysmal nodal reentry tachycardia].
Rev Esp Cardiol. 1994 Apr; 47(4):240-6.RE

Abstract

INTRODUCTION

We describe our experience in the treatment of supraventricular tachycardia due to atrioventricular nodal reentry by radiofrequency catheter ablation of the slow pathway.

PATIENTS AND METHODS

Thirty-four patients (mean age 52 +/- 13 years) with recurrent drug refractory atrioventricular nodal reentrant tachycardia underwent radiofrequency catheter ablation of slow-pathway as the first procedure. Maximal energy used was 28 +/- 8 W, mean time was 4.4 +/- 2.8 min, and a mean number of 13 +/- 9 discharges per patient.

RESULTS

Of the 34 patients 14 were successfully treated (no slow-pathway conduction, no AV nodal reentrant echo complexes, no inducible tachycardia), 11 were considered as partially successful (no inducible tachycardia, with slow-pathway conduction or echoes) and 9 patients were unsuccessfully treated (all of them underwent fast-pathway ablation with a successful outcome). Eight recurrences were observed during a mean follow-up period of 7 +/- 4 months: One in a patient with previously successful ablation (remained asymptomatic while taking beta-blockers), 6 in patients with first procedure partially successful (all of them underwent effective second slow-pathway ablation) and 1 in a patient with an unsuccessful procedure that underwent fast pathway ablation. A repeated procedure was successful in ablating the slow pathway. None of our patients developed complete atrio-ventricular block. One patient developed cardiac tamponade that needed surgical drainage. At last follow-up all patients are free from tachycardias.

CONCLUSION

Slow pathway ablation is an effective method of treatment in patients with atrio-ventricular nodal reentrant tachycardia. Long term success is related to complete abolition of slow pathway conduction.

Authors+Show Affiliations

Servicio de Cardiología, Hospital Clínic i Provincial, Barcelona.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

spa

PubMed ID

8209091

Citation

Brugada, J, et al. "[Radiofrequency Ablation of the Slow Nodal Pathway in Cases of Paroxysmal Nodal Reentry Tachycardia]." Revista Espanola De Cardiologia, vol. 47, no. 4, 1994, pp. 240-6.
Brugada J, Pelegrín J, Alvarez B, et al. [Radiofrequency ablation of the slow nodal pathway in cases of paroxysmal nodal reentry tachycardia]. Rev Esp Cardiol. 1994;47(4):240-6.
Brugada, J., Pelegrín, J., Alvarez, B., Matas, M., Pava, F., & Navarro-López, F. (1994). [Radiofrequency ablation of the slow nodal pathway in cases of paroxysmal nodal reentry tachycardia]. Revista Espanola De Cardiologia, 47(4), 240-6.
Brugada J, et al. [Radiofrequency Ablation of the Slow Nodal Pathway in Cases of Paroxysmal Nodal Reentry Tachycardia]. Rev Esp Cardiol. 1994;47(4):240-6. PubMed PMID: 8209091.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Radiofrequency ablation of the slow nodal pathway in cases of paroxysmal nodal reentry tachycardia]. AU - Brugada,J, AU - Pelegrín,J, AU - Alvarez,B, AU - Matas,M, AU - Pava,F, AU - Navarro-López,F, PY - 1994/4/1/pubmed PY - 1994/4/1/medline PY - 1994/4/1/entrez SP - 240 EP - 6 JF - Revista espanola de cardiologia JO - Rev Esp Cardiol VL - 47 IS - 4 N2 - INTRODUCTION: We describe our experience in the treatment of supraventricular tachycardia due to atrioventricular nodal reentry by radiofrequency catheter ablation of the slow pathway. PATIENTS AND METHODS: Thirty-four patients (mean age 52 +/- 13 years) with recurrent drug refractory atrioventricular nodal reentrant tachycardia underwent radiofrequency catheter ablation of slow-pathway as the first procedure. Maximal energy used was 28 +/- 8 W, mean time was 4.4 +/- 2.8 min, and a mean number of 13 +/- 9 discharges per patient. RESULTS: Of the 34 patients 14 were successfully treated (no slow-pathway conduction, no AV nodal reentrant echo complexes, no inducible tachycardia), 11 were considered as partially successful (no inducible tachycardia, with slow-pathway conduction or echoes) and 9 patients were unsuccessfully treated (all of them underwent fast-pathway ablation with a successful outcome). Eight recurrences were observed during a mean follow-up period of 7 +/- 4 months: One in a patient with previously successful ablation (remained asymptomatic while taking beta-blockers), 6 in patients with first procedure partially successful (all of them underwent effective second slow-pathway ablation) and 1 in a patient with an unsuccessful procedure that underwent fast pathway ablation. A repeated procedure was successful in ablating the slow pathway. None of our patients developed complete atrio-ventricular block. One patient developed cardiac tamponade that needed surgical drainage. At last follow-up all patients are free from tachycardias. CONCLUSION: Slow pathway ablation is an effective method of treatment in patients with atrio-ventricular nodal reentrant tachycardia. Long term success is related to complete abolition of slow pathway conduction. SN - 0300-8932 UR - https://www.unboundmedicine.com/medline/citation/8209091/[Radiofrequency_ablation_of_the_slow_nodal_pathway_in_cases_of_paroxysmal_nodal_reentry_tachycardia]_ DB - PRIME DP - Unbound Medicine ER -