What does this research mean for the field?

Ablation of complex fractionated atrial electrograms (CFAE) acutely terminates or regularizes atrial fibrillation in 84% of patients, with preferential effective sites located around the pulmonary veins, the anterior wall of the left atrium, and the interatrial septum. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study evaluates the acute effects of CFAE ablation on atrial fibrillation and identifies key anatomical sites for these effects.

August 16, 2007Journal of Cardiovascular Electrophysiology

Radiofrequency Ablation of Complex Fractionated Atrial Electrograms (CFAE): Preferential Sites of Acute Termination and Regularization in Paroxysmal and Persistent Atrial Fibrillation

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Why the study?

Does radiofrequency ablation of complex fractionated atrial electrograms (CFAE) improve acute termination or regularization of atrial fibrillation in symptomatic patients with paroxysmal or persistent atrial fibrillation?

Key Points

This study evaluates the acute effects of CFAE ablation on atrial fibrillation and identifies key anatomical sites for these effects.
Prospective evaluation of 66 symptomatic patients with paroxysmal or persistent atrial fibrillation.
CFAE ablation was performed, aiming for acute termination or regularization of atrial fibrillation.
Analysis of anatomical sites for AF termination and regularization during the procedure.
Termination or regularization of AF achieved in 84% (56 of 66) patients.
AF termination occurred at 53 sites; AF regularization at 81 sites.
Key anatomical sites included pulmonary veins, anterior wall of the left atrium, and interatrial septum.

Structured PICO

Population

66 symptomatic patients with paroxysmal (n = 36) or persistent atrial fibrillation (n = 30), mean age 58 +/- 12 years.

Intervention

Radiofrequency ablation of complex fractionated atrial electrograms (CFAE)

Outcome

Acute termination or regularization of atrial fibrillation during ablation of CFAE and preferential anatomic sitessurrogate

Ablation of complex fractionated atrial electrograms acutely terminates or regularizes atrial fibrillation in 84% of patients, predominantly at sites around the pulmonary veins, anterior left atrial wall, and interatrial septum.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

May support targeted CFAE ablation for acute AF termination; hypothesis-generating pending randomized outcome trials.

Cite This Study

Schmitt et al. (2007) studied this question.

synapsesocial.com/papers/6a1b8eec950e49a3ca0c8548 https://doi.org/10.1111/j.1540-8167.2007.00930.x

Topics

Atrial fibrillation Persistent AF management AF ablation outcomes Anticoagulation in AF

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Radiofrequency Ablation of Complex Fractionated Atrial Electrograms (CFAE): Preferential Sites of Acute Termination and Regularization in Paroxysmal and Persistent Atrial Fibrillation

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Topics

Radiofrequency Ablation of Complex Fractionated Atrial Electrograms (CFAE): Preferential Sites of Acute Termination and Regularization in Paroxysmal and Persistent Atrial Fibrillation

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Topics

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