What question did this study set out to answer?

To evaluate the incidence and time course of early electrical conduction recovery across pulmonary veins following radiofrequency catheter ablation for atrial fibrillation.

February 21, 2007Journal of Cardiovascular Electrophysiology

Incidence and Time Course of Early Recovery of Pulmonary Vein Conduction after Catheter Ablation of Atrial Fibrillation

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Why the study?

What is the incidence and time course of early recovery of pulmonary vein conduction after catheter ablation of atrial fibrillation?

Population

14 consecutive patients with atrial fibrillation undergoing radiofrequency catheter ablation via…

Design

Cohort

Follow-up

60 minutes

Authors

ACAamir CheemaMonash University JDJun DongChinese Academy of Medical Sciences & Peking Union Medical College DDDarshan DalalAstraZeneca (United Kingdom)

Discussion

Member takes

Implication

Early PV reconnection is frequent by 60 minutes; supports extended observation but leaves open impact on long-term ablation success.

Key Points

To evaluate the incidence and time course of early electrical conduction recovery across pulmonary veins following radiofrequency catheter ablation for atrial fibrillation.
Evaluated 14 consecutive patients (9 men [64%], mean age 56 ± 7 years) undergoing circumferential radiofrequency catheter ablation for atrial fibrillation.
Verified initial complete pulmonary vein isolation and obtained repeat electrical recordings using a circular mapping catheter at 30 and 60 minutes post-ablation.
Early recurrence of pulmonary vein conduction occurred in 13 patients (93%) and 26 of 52 evaluated veins (50%) following initial complete isolation.
First electrical recurrence was detected in 17 veins (33%) at 30 minutes and in 9 veins (17%) at 60 minutes post-isolation.

Structured PICO

What is the incidence and time course of early recovery of pulmonary vein conduction after catheter ablation of atrial fibrillation?

Population

14 consecutive patients with atrial fibrillation undergoing radiofrequency catheter ablation via circumferential ablation with pulmonary vein isolation, mean age 56 +/- 7 years, 64% men.

Intervention

Repeat circular electrode recordings from each pulmonary vein at 30 and 60 minutes after successful initial isolation.

Outcome

Incidence and time course of early recurrence of pulmonary vein conduction at 30 and 60 minutes post-isolation.surrogate

A 60-minute waiting period after initial pulmonary vein isolation reveals a high rate of early conduction recurrence, suggesting its incorporation into standard AF ablation procedures.

Cite This Study

Cheema et al. (2007) studied this question.

synapsesocial.com/papers/6a7de6ee482b22b9a6ac8ab6 https://doi.org/10.1111/j.1540-8167.2007.00760.x

Topics

Atrial fibrillation Persistent AF management AF ablation outcomes Anticoagulation in AF

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Incidence and Time Course of Early Recovery of Pulmonary Vein Conduction after Catheter Ablation of Atrial Fibrillation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Incidence and Time Course of Early Recovery of Pulmonary Vein Conduction after Catheter Ablation of Atrial Fibrillation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Topics

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