August 7, 2005EP Europace
Radiofrequency ablation for common atrial flutter using an 8-mm tip catheter and up to 150W
Key result
Temperature-controlled flutter ablation using an 8-mm tip catheter and up to 150 W achieved 94% acute and 88% long-term success, but was associated with a 12% rate of pops.
Why the study?
Does temperature-controlled radiofrequency ablation using an 8-mm tip catheter and up to 150 W improve success rates in patients with common atrial flutter?
Population
50 new cases with either typical atrial flutter alone or predominant flutter as the indication; no combined…
Design
Case_series
Authors
Discussion
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Implication
May warrant caution with high-power settings due to pop risk; leaves open safety and efficacy of temperature-controlled ablation pending controlled trials.
Study Design
Type
Observational (n=50)
Structured PICO
Does temperature-controlled radiofrequency ablation using an 8-mm tip catheter and up to 150 W improve success rates in patients with common atrial flutter?
P
Population
50 patients with typical or predominant atrial flutter undergoing temperature-controlled ablation using an 8-mm tip catheter and up to 150 W.
E
Exposure
Temperature controlled (60-65 degrees C) radiofrequency ablation using an 8-mm tip electrode catheter and up to 150 W.
O
Outcome
Acute procedural success and long-term success.
Using up to 150 W for atrial flutter ablation achieves high success rates but is associated with a notable risk of steam pops and potential perforation.
Limitations
- High energy ablation is associated with a risk of pops, which can lead to perforation and tamponade as observed in a subsequent patient outside the initial cohort.
- Retrospective review
Cite This Study
Hillock et al. (2005) conducted an observational in Atrial flutter (n=50). Temperature-controlled flutter ablation using an 8-mm tip catheter was evaluated on Acute procedural success. Temperature-controlled flutter ablation using an 8-mm tip catheter and up to 150 W achieved 94% acute and 88% long-term success, but was associated with a 12% rate of pops.