Journal Article

5. Atrial Tachycardia, Atrial Flutter & WPW Syndrome

M. Ventura, L. Elvas and L. Providência

in EP Europace

Published on behalf of European Heart Rhythm Association of the European Society of Cardiology (ESC)

Volume 7, issue s3, pages S8-S8
Published in print October 2005 | ISSN: 1099-5129
Published online October 2005 | e-ISSN: 1532-2092 | DOI:
5. Atrial Tachycardia, Atrial Flutter & WPW Syndrome

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We ablated 26 patients with atrial flutter; in 13, a lateral line (LL) of isthmus block was drawn; in the other with draw a septal line (SPT); we used 8 mm non-irrigated tip catheters (60W power (PW); maximal temperature (TEMP) of 70 °C – LL). With SPT, same catheters but 40W; 50°C TEMP). In SPT we interrupted radiofrequency with high rate junctional rhythm (HJR) and looked for another position. We obtained bi-directional isthmus-block in all patients. No differences in terms of total fluoroscopy time, between both groups; total duration of time of the procedure (TDTP) was less in the LL group (50,38±3,23 versus 51,69 ± 2,98 minutes, p< 0.001). PW used was higher in the LL group (0,36±0,29 versus 0,30 + 7-0,09 mV, p< 0.001) as well as TEMP (56,15±3,6 versus 44,85 ± 1,5 °C p< 0.001). Number pulses was higher in SPT (11,77±1,42 versus 12,61±1,56, p< 0.01). The success with LL and SPT was similar; PW and TEMP were reduced in SPT, pulses interrupted with HJR. SPT was safe with less PW; SPT required higher number of pulses TDTP was longer.

Journal Article.  0 words. 

Subjects: Cardiovascular Medicine

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