Long-term efficacy of slow-pathway catheter ablation in patients with documented but noninducible supraventricular tachycardia

Lexin Wang, Haibo Yang, Zhanying Han, Yanzhou Zhang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Background The long-term efficacy of radiofrequency catheter ablation of slow pathway in patients with dual atrioventricular node pathway and a documented but noninducible paroxysmal supraventricular tachycardia (PSVT) is not entirely clear. Methods Forty nine patients (Group A) with documented but noninducible PSVT and dual atrioventricular node pathway were prospectively studied. Programmed electrical stimulation induced a single atrioventricular node echo beat in 13 patients, and double echo beats in 9 at baseline or during isoproterenol infusion. Clinical and electrophysiological characteristics of Group A patients were compared with that of age- and gender-matched patients with dual atrioventricular node pathway but inducible PSVT (Group B). Results There was no significant difference in the electrophysiological properties of the fast and slow pathways between the two groups. Catheter ablation eliminated the slow pathway in all patients. There was no recurrence of PSVT in either Group A or Group B during the follow-up of 38 ± 5 months. Conclusions In patients with dual atrioventricular node pathway and a documented but noninducible PSVT, catheter ablation of slow pathway is highly effective in preventing tachycardia in long term.
Original languageEnglish
Pages (from-to)507-510
Number of pages4
JournalArchives of Medical Research
Volume35
Issue number6
DOIs
Publication statusPublished - 2004

Fingerprint Dive into the research topics of 'Long-term efficacy of slow-pathway catheter ablation in patients with documented but noninducible supraventricular tachycardia'. Together they form a unique fingerprint.

Cite this