What question did this study set out to answer?

To evaluate the feasibility, efficacy, and safety of transcatheter radiofrequency ablation for the treatment of drug-refractory atrial tachycardia.

April 1, 1995Australian and New Zealand Journal of Medicine

Radiofrequency catheter ablation of atrial tachycardia

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Why the study?

Does radiofrequency catheter ablation eliminate atrial tachycardia in patients with drug-refractory atrial tachycardia?

Population

13 consecutive patients (age 13-63 years) with 15 drug-refractory atrial tachycardia foci

Design

Case_series

Authors

LWLing WangChengdu University of Technology HWH.R. WeerasooriyaHollywood Private Hospital MDMichael J. DavisUniversity of North Texas

Discussion

Member takes

Implication

RF ablation may eliminate drug-refractory atrial tachycardia; hypothesis-generating from Level 5 evidence and requires prospective validation.

Key Points

To evaluate the feasibility, efficacy, and safety of transcatheter radiofrequency ablation for the treatment of drug-refractory atrial tachycardia.
Thirteen consecutive patients aged 13–63 years presenting with 15 drug-refractory atrial tachycardia foci were treated with radiofrequency catheter ablation.
Atrial activation mapping was conducted to localize the earliest activation site in the right atrium (n=8) or left atrium (n=5).
Tachycardias were abolished in 9 of 13 patients (69%), including two sinoatrial re-entrant and seven automatic atrial tachycardias, requiring 9 ± 10 (range, 1 to 28) radiofrequency energy pulses.
Ablated foci included six right-sided and three left-sided origins; arrhythmia recurred at two weeks in one patient with initially successful sinoatrial re-entrant tachycardia ablation.
One patient developed cardiac tamponade following right atrial tachycardia ablation, requiring emergency surgical intervention.

Structured PICO

Does radiofrequency catheter ablation eliminate atrial tachycardia in patients with drug-refractory atrial tachycardia?

Population

13 consecutive patients (age 13-63 years) with 15 drug-refractory atrial tachycardia foci

Intervention

Radiofrequency (RF) catheter ablation

Outcome

Abolition of tachycardia

Radiofrequency catheter ablation is an effective modality for eliminating drug-refractory atrial tachycardia from diverse sites, though it carries a risk of serious complications such as cardiac tamponade.

Cite This Study

Wang et al. (1995) studied this question.

synapsesocial.com/papers/6a8970ff6fc170cbc2fba25e https://doi.org/10.1111/j.1445-5994.1995.tb02824.x

Topics

AF ablation outcomes

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Implication

RF ablation may eliminate drug-refractory atrial tachycardia; hypothesis-generating from Level 5 evidence and requires prospective validation.

Radiofrequency catheter ablation of atrial tachycardia

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Radiofrequency catheter ablation of atrial tachycardia

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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