Is 8-mm more effective than 4-mm tip electrode catheter for ablation of typical atrial flutter?

C. F. Tsai, C. T. Tai, W. C. Yu, Y. J. Chen, M. H. Hsieh, C. E. Chiang, Y. A. Ding, M. S. Chang, S. A. Chen

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Abstract

Background-The prospective, randomized study comparing 4- with 8-mm tip electrodes for radiofrequency linear ablation of typical atrial flutter is not available. Methods and Results-A total of 104 consecutive patients with typical atrial flutter were randomly assigned to undergo radiofrequency linear ablation using a 4- (Group I, n=54) or 8-mm tip electrode (Group II, n=50) catheter (temperature-control model, preset 70°C). If complete bidirectional isthmus block could not be achieved after 5 pulses, the ablation catheter was changed to the other type; the maximal radiofrequency pulse number was limited to

Original languageEnglish
Pages (from-to)768-771
Number of pages4
JournalCirculation
Volume100
Issue number7
Publication statusPublished - Aug 17 1999
Externally publishedYes

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Keywords

  • Ablation
  • Atrial flutter
  • Isthmus

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Tsai, C. F., Tai, C. T., Yu, W. C., Chen, Y. J., Hsieh, M. H., Chiang, C. E., Ding, Y. A., Chang, M. S., & Chen, S. A. (1999). Is 8-mm more effective than 4-mm tip electrode catheter for ablation of typical atrial flutter? Circulation, 100(7), 768-771.