What question did this study set out to answer?

To investigate the electrophysiologic characteristics, electrocardiographic features, and clinical outcomes of radiofrequency catheter ablation in patients with focal atrial tachycardia originating from the left atrial appendage.

April 19, 2007Journal of Cardiovascular Electrophysiology

Focal Atrial Tachycardia Originating from the Left Atrial Appendage: Electrocardiographic and Electrophysiologic Characterization and Long‐Term Outcomes of Radiofrequency Ablation

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Why the study?

Is radiofrequency ablation safe and effective for treating focal atrial tachycardia originating from the left atrial appendage?

Population

7 patients with focal atrial tachycardia (AT) arising from the left atrial appendage (LAA)

Design

Case_series

Follow-up

mean 24 +/- 5 months

Authors

XLXuebin LiElectrophysiology QXQUAN XINPeking University MJMA JIN‐XINPeking University

Discussion

Member takes

Implication

RFA may be feasible for focal LAA AT; hypothesis-generating and should not yet change practice.

Key Points

To investigate the electrophysiologic characteristics, electrocardiographic features, and clinical outcomes of radiofrequency catheter ablation in patients with focal atrial tachycardia originating from the left atrial appendage.
Enrolled 7 patients with focal atrial tachycardia originating from the left atrial appendage who underwent radiofrequency ablation.
Performed activation mapping during tachycardia to identify early activation sites and left atrial appendage angiography before and after ablation.
Monitored patients post-ablation over a mean follow-up period of 24 ± 5 months.
All patients exhibited distinct P-wave morphology (positive in inferior leads, upright or biphasic in V1) and earliest endocardial activity at the distal coronary sinus, preceding P-wave onset by 42.3 ± 9.6 ms at the successful ablation site (mean cycle length 381 ± 34 ms).
Acute procedural success was achieved in 100% of patients (7/7) following radiofrequency ablation.
Long-term freedom from tachycardia recurrence was maintained in 100% of patients (7/7) across the 24 ± 5 month follow-up period.

Structured PICO

Is radiofrequency ablation safe and effective for treating focal atrial tachycardia originating from the left atrial appendage?

Population

7 patients with focal atrial tachycardia (AT) arising from the left atrial appendage (LAA)

Intervention

Radiofrequency ablation (RFA)

Outcome

Acute and long-term success of RFA

Radiofrequency ablation is a highly effective and safe treatment for the uncommon presentation of focal atrial tachycardia originating from the left atrial appendage.

Cite This Study

Li et al. (2007) studied this question.

synapsesocial.com/papers/6a7ca22d398814c3397ccd72 https://doi.org/10.1111/j.1540-8167.2007.00808.x

Topics

Left atrial appendage closure AF ablation outcomes

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Focal Atrial Tachycardia Originating from the Left Atrial Appendage: Electrocardiographic and Electrophysiologic Characterization and Long‐Term Outcomes of Radiofrequency Ablation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Focal Atrial Tachycardia Originating from the Left Atrial Appendage: Electrocardiographic and Electrophysiologic Characterization and Long‐Term Outcomes of Radiofrequency Ablation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Topics

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