Key result
Acceleration of atrial ectopic tachycardia rate during radiofrequency ablation occurred only during successful applications, serving as a predictor of procedural success.
Why the study?
Does acceleration of AET rate during radiofrequency ablation predict procedural success in children with atrial ectopic tachycardia?
Case Report (n=3)
Does acceleration of AET rate during radiofrequency ablation predict procedural success in children with atrial ectopic tachycardia?
Acceleration of AET rate during radiofrequency ablation may serve as a useful predictor of procedural success, potentially indicating the destruction of abnormally automatic substrates.
Answers are grounded in this paper and cite their sources.
May aid real-time assessment of ablation efficacy in pediatric AET; hypothesis-generating and requires prospective validation.
Three children with atrial ectopic tachycardia (AET), ages 7-10 years, underwent radiofrequency ablation (RFA). Two had AET localized to the inferolateral orifice of the right atrial appendage, one had AET at the posteroinferior orifice of the left atrial appendage. Each patient received RFA at 15-16 watts for 30 seconds per application. Acceleration of AET rate was observed only during successful RFA application in each patient, occurring within 5 seconds and lasting 2-4 seconds. All unsuccessful applications failed to show this phenomenon. Observation of acceleration of AET rate during RFA was a useful predictor of successful procedure, possibly indicating destruction of abnormally automatic substrates.
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Perry et al. (1993) conducted a case report in Atrial ectopic tachycardia (n=3). Radiofrequency ablation vs. Unsuccessful applications was evaluated on Acceleration of atrial ectopic tachycardia rate. Acceleration of atrial ectopic tachycardia rate during radiofrequency ablation occurred only during successful applications, serving as a predictor of procedural success.
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