Catheter Ablation of Multiple Unstable Macroreentrant Tachycardia Within the Right Atrium Free Wall in Patients Without Previous Cardiac Surgery
Why the study?
Does catheter ablation, including right atrial free wall isolation, prevent atrial tachycardia recurrence in patients with macroreentrant ATs without previous cardiac surgery?
Population
17 patients with reentrant atrial tachycardias originating from the right atrial free wall and no history of…
Design
Case_series
Follow-up
31 (19; 37) months
Authors
Discussion
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Member takes
Implication
RAFW isolation should not yet change ablation practice for macroreentrant ATs; hypothesis-generating for efficacy in patients without prior surgery.
Structured PICO
Does catheter ablation, including right atrial free wall isolation, prevent atrial tachycardia recurrence in patients with macroreentrant ATs without previous cardiac surgery?
P
Population
17 patients (14 men; median age 71 [IQR 67-76] years) with reentrant atrial tachycardias (ATs) originating from the right atrial free wall (RAFW) and no history of cardiac surgery.
I
Intervention
Electrophysiological study and catheter ablation using 3D mapping, including complete isolation of the RAFW for patients with unstable ATs.
O
Outcome
Successful ablation and atrial tachycardia recurrence
Right atrial free wall isolation is a feasible ablation strategy that has the potential to abolish multiple and unstable macroreentrant atrial tachycardias in patients without prior cardiac surgery.
Cite This Study
Satomi et al. (2009) studied this question.