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[Factors Associated With Development of Atrial Fibrillation After Coronary Artery Bypass Grafting]

O A Rubanenko1,2, O V Fatenkov1,2, D V Kuznetsov1,2

  • 1Samara State Medical University, Samara, Russia.

Kardiologiia
|March 15, 2017
PubMed

Insights

Older age, longer aortic cross-clamping time, larger left atrial size, and lower left ventricular ejection fraction increase the risk of atrial fibrillation after coronary artery bypass grafting surgery.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Electrophysiology

Background:

  • Atrial fibrillation (AF) is a common complication following coronary artery bypass grafting (CABG).
  • Identifying predictive factors for early postoperative AF is crucial for patient management and risk stratification.

Purpose of the Study:

  • To determine the key factors associated with the development of atrial fibrillation (AF) in the early postoperative period after coronary artery bypass grafting (CABG).

Main Methods:

  • A study involving 376 patients with ischemic heart disease undergoing CABG.
  • Multivariate regression analysis and Receiver Operating Characteristic (ROC) analysis were employed to identify significant predictors.

Main Results:

  • Atrial fibrillation (AF) occurred in 19.7% of patients, with significant associations found for age >59 years (OR 1.5), aortic cross-clamping time >43 min (OR 2.4), left atrial dimension >39 mm (OR 5.0), and left ventricular ejection fraction <51% (OR 3.6).
  • Left atrial dimension >39 mm demonstrated high sensitivity (82%) for predicting AF, while left ventricular ejection fraction <51% showed high specificity (80%).

Conclusions:

  • The development of early postoperative AF after CABG is influenced by patient age, left atrial size, left ventricular ejection fraction, and aortic cross-clamping duration.
  • These factors can aid in risk assessment for AF development in patients undergoing CABG.
Abstract

Keywords:
atrial fibrillationcoronary artery bypass grafting

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