Atrial fibrillation after beating heart surgery.

Area of Science:

• Cardiology
• Cardiac Surgery

Background:

• Postoperative atrial fibrillation (AF) is a common complication following coronary artery bypass grafting (CABG).
• AF can negatively impact early clinical outcomes after CABG.
• Investigating AF in off-pump CABG is crucial for improving patient care.

Purpose of the Study:

• To identify risk factors for postoperative AF in patients undergoing off-pump CABG.
• To determine the prevalence and prognostic implications of AF in this patient group.
• To evaluate the impact of surgical approach on AF incidence.

Main Methods:

• Retrospective analysis of 969 patients undergoing off-pump CABG from 1987 to 1999.
• Exclusion of patients with preoperative AF.
• Statistical analysis to identify predictors and outcomes associated with AF.

Main Results:

• 206 patients (21.3%) developed postoperative AF.
• Predictors of AF included advanced age (>75 years), history of stroke, and postoperative pleural effusion or pulmonary edema.
• Minimally invasive direct CABG was associated with a significantly lower incidence of AF (OR 0.4).
• AF correlated with prolonged hospital stay (9 vs 6 days), higher in-hospital mortality (3% vs 1%), and increased stroke rates in persistent AF cases.

Conclusions:

• Postoperative AF in off-pump CABG patients is linked to increased morbidity, mortality, and extended hospital stays.
• Minimally invasive direct CABG demonstrates a reduced risk of AF.
• Identifying and mitigating AF risk factors is essential for improving outcomes in CABG patients.