Atrioventricular node reentrant tachycardia in patients with a long fast pathway effective refractory period

clinical features, electrophysiologic characteristics, and results of radiofrequency ablation

Szu-Chih Lee, Soul-Chin Chen, Tai Chingtai, C. E. Chiang, Zu Chin Wen, Yi-Jen Chen, Wen-Liang Yu, Ann Ning Fong, Jhen-Sheng Huang, Jun Jack Cheng, M S Chang

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Twenty-two patients (group 1) with AV node reentrant tachycardia and a baseline fast pathway effective refractory period (ERP) > or = 500 msec were compared with 30 consecutive patients (group 2) with AV node reentrant tachycardia and a fast pathway ERP < 500 msec. Both groups underwent slow pathway ablation. In the patients with complete elimination of slow pathway, the fast pathway ERP and shortest 1:1 conduction cycle length shortened significantly after ablation but was greater in group 1 (n = 14) than in group 2 (n = 21) (125 +/- 78 msec vs 48 +/- 29 msec, p < 0.001 and 103 +/- 72 msec vs 52 +/- 30 msec, p < 0.001, respectively). In group 1, the shortening of fast pathway ERP was correlated to baseline difference between anterograde fast and anterograde slow ERP (r = 0.806, p < 0.001, slope = 1.08), and the shortening of fast pathway shortest 1:1 conduction cycle length was correlated to baseline difference between anterograde fast and anterograde slow shortest 1:1 conduction cycle length (r = 0.885, p < 0.001, slope = 1.47). During follow-up bradycardia did not develop in any patient and no one required pacing. This shortening of the fast pathway ERP and shortest 1:1 conduction cycle length after complete elimination of slow pathway reduced the concern of subsequent impairment of AV node conduction.

Original languageEnglish
Pages (from-to)387-94
Number of pages8
JournalAmerican Heart Journal
Volume134
Issue number3
DOIs
Publication statusPublished - Sep 1997
Externally publishedYes

Fingerprint

Atrioventricular Node
Tachycardia
Bradycardia

Keywords

  • Adrenergic beta-Agonists
  • Adult
  • Aged
  • Catheter Ablation
  • Female
  • Heart Conduction System
  • Humans
  • Isoproterenol
  • Male
  • Middle Aged
  • Tachycardia, Atrioventricular Nodal Reentry
  • Journal Article
  • Research Support, Non-U.S. Gov't

Cite this

Atrioventricular node reentrant tachycardia in patients with a long fast pathway effective refractory period : clinical features, electrophysiologic characteristics, and results of radiofrequency ablation. / Lee, Szu-Chih; Chen, Soul-Chin; Chingtai, Tai; Chiang, C. E.; Wen, Zu Chin; Chen, Yi-Jen; Yu, Wen-Liang; Fong, Ann Ning; Huang, Jhen-Sheng; Cheng, Jun Jack; Chang, M S.

In: American Heart Journal, Vol. 134, No. 3, 09.1997, p. 387-94.

Research output: Contribution to journalArticle

Lee, Szu-Chih ; Chen, Soul-Chin ; Chingtai, Tai ; Chiang, C. E. ; Wen, Zu Chin ; Chen, Yi-Jen ; Yu, Wen-Liang ; Fong, Ann Ning ; Huang, Jhen-Sheng ; Cheng, Jun Jack ; Chang, M S. / Atrioventricular node reentrant tachycardia in patients with a long fast pathway effective refractory period : clinical features, electrophysiologic characteristics, and results of radiofrequency ablation. In: American Heart Journal. 1997 ; Vol. 134, No. 3. pp. 387-94.
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AU - Chiang, C. E.

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AU - Chen, Yi-Jen

AU - Yu, Wen-Liang

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AU - Huang, Jhen-Sheng

AU - Cheng, Jun Jack

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