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Antiarrhythmic surgery to cure atrial fibrillation--subgroups and postoperative management

Thomas Deneke1, Krishna Khargi, Peter H Grewe

  • 1Clinic II (Cardiology), Bergmannsheil Bochum, Germany. thomas.deneke@ruhr-uni-bochum.de

Cardiac Electrophysiology Review
|January 24, 2004
PubMed

Insights

Surgical ablation effectively restores normal heart rhythm in 75% of patients with permanent atrial fibrillation (AF) undergoing cardiac surgery. Waiting for spontaneous rhythm conversion after ablation is recommended, as medication doesn't improve outcomes.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Electrophysiology

Background:

  • Atrial fibrillation (AF) is a common arrhythmia requiring surgical intervention.
  • The Cox maze procedure is the gold standard, but shorter procedures are being developed.
  • Antiarrhythmic procedures are particularly beneficial for patients undergoing mitral valve surgery.

Purpose of the Study:

  • To evaluate the effectiveness and feasibility of intraoperative ablation for permanent atrial fibrillation.
  • To assess rhythm conversion and survival rates in patients undergoing cardiac surgery with antiarrhythmic procedures.

Main Methods:

  • A study involving 110 patients with permanent AF undergoing various surgical procedures.
  • Intraoperative ablation techniques were employed to treat atrial fibrillation.
  • Subgroup analyses were conducted to assess outcomes across different patient characteristics.

Main Results:

  • Sinus rhythm was re-established in 75% of patients post-ablation.
  • No significant differences in rhythm conversion or survival were observed across subgroups.
  • Spontaneous rhythm conversion typically occurs within 6 months without medication assistance.

Conclusions:

  • Intraoperative ablation is a safe and effective adjunctive procedure for patients with permanent AF undergoing open-heart surgery.
  • The procedure is useful and feasible across a wide range of patient characteristics.
  • Observation for spontaneous sinus rhythm conversion is a reasonable approach post-ablation.

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