What is the clinical evidence from this study?

Study design: Observational. Population: Permanent atrial fibrillation (n=85). Intervention: Biauricular epicardic-endocardic maze radiofrequency ablation. Primary outcome: Recovery and maintenance of sinus rhythm.

What question did this study set out to answer?

To assess the mid-term efficacy, safety, and functional recovery of biatrial radiofrequency maze ablation performed during cardiac surgery for permanent atrial fibrillation.

September 1, 2004Journal of Cardiac Surgery

Surgical Ablation of Permanent Atrial Fibrillation by Means of Maze Radiofrequency:. Mid-Term Results

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Key result

Intraoperative radiofrequency maze ablation during cardiac surgery achieved an 85.9% rate of sinus rhythm maintenance and 65% recovery of atrial contraction.

Why the study?

Does a biauricular pattern of epicardic-endocardic maze lesions using radiofrequency ablation improve maintenance of sinus rhythm in patients undergoing cardiac surgery for permanent atrial fibrillation?

Key Points

To assess the mid-term efficacy, safety, and functional recovery of biatrial radiofrequency maze ablation performed during cardiac surgery for permanent atrial fibrillation.
Analyzed 85 patients (mean age 61 ± 12 years; mean atrial fibrillation duration 5.8 years) undergoing cardiac surgery combined with biatrial epicardial-endocardial radiofrequency maze ablation.
Concomitant operations included mitral valve procedures (n=42), combined valve repairs or replacements, coronary artery bypass grafting, and atrial septal defect corrections.
Monitored postoperative arrhythmias, sinus rhythm recovery, and echocardiographic atrial contraction over a mean follow-up of 12 months (range 2–32 months).
Sinus rhythm was restored and maintained in 85.9% of patients overall, and in 87.5% of those followed beyond 6 months, with 65% regaining biauricular mechanical contraction.
Hospital mortality was 5.8% (n=5) and early postoperative supraventricular arrhythmias occurred in 72.9% (n=62) of patients.
Postoperative recurrence of atrial fibrillation was significantly associated with a longer pre-existing arrhythmia duration (p < 0.01) and larger pre- and postoperative left atrial volumes (p < 0.04).

Study Design

Type

Observational (n=85)

Structured PICO

Population

85 patients undergoing cardiac surgery for established permanent atrial fibrillation (>3 months), mean age 61 +/- 12 (range 39-78).

Intervention

Biauricular pattern of epicardic-endocardic maze lesions using radiofrequency ablation during cardiac surgery.

Outcome

Recovery and maintenance of sinus rhythmsurrogate

Intraoperative radiofrequency maze procedure during cardiac surgery is effective for restoring sinus rhythm in patients with permanent atrial fibrillation, achieving an 85.9% success rate.

Discussion

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

Implication

May support adjunctive radiofrequency maze in AF surgery; leaves open need for randomized confirmation.

Cite This Study

Hornero et al. (2004) conducted an observational in Permanent atrial fibrillation (n=85). Biauricular epicardic-endocardic maze radiofrequency ablation was evaluated on Recovery and maintenance of sinus rhythm. Intraoperative radiofrequency maze ablation during cardiac surgery achieved an 85.9% rate of sinus rhythm maintenance and 65% recovery of atrial contraction.

synapsesocial.com/papers/6a154aef5347fbb1739f8b85 https://doi.org/10.1111/j.0886-0440.2004.04077.x

Topics

Atrial fibrillation Persistent AF management AF ablation outcomes Anticoagulation in AF

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Surgical Ablation of Permanent Atrial Fibrillation by Means of Maze Radiofrequency:. Mid-Term Results

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Topics

Surgical Ablation of Permanent Atrial Fibrillation by Means of Maze Radiofrequency:. Mid-Term Results

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Topics

Also Consider