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Updated: Oct 8, 2025

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

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Clinical and Echocardiographic Predictors of Atrial Fibrillation after Coronary Artery Bypass Grafting

Al-Shimaa Mohamed Sabry1, Heba Abd El-Kader Mansour1, Tarek Helmy Abo El-Azm1

  • 1Cardiology Department, Faculty of Medicine, Benha University, Egypt.

Journal of Atrial Fibrillation
|December 24, 2021
PubMed

Insights

Preoperative echocardiography, specifically left atrial and ventricular global longitudinal strain, can predict post-operative atrial fibrillation (POAF) in patients undergoing coronary artery bypass surgery (CABG). These findings aid in identifying high-risk individuals for POAF.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Echocardiography

Background:

  • Post-operative atrial fibrillation (POAF) is a common complication following coronary artery bypass surgery (CABG).
  • Predicting POAF is crucial for optimizing patient management and outcomes in coronary artery disease (CAD) patients.

Purpose of the Study:

  • To identify clinical and echocardiographic parameters predicting POAF in CAD patients undergoing CABG.
  • To evaluate the role of left atrial (LA) and left ventricular (LV) function, assessed by echocardiography, in POAF prediction.

Main Methods:

  • One hundred CAD patients scheduled for CABG were enrolled.
  • Standard 2D, PW Doppler, and 2D speckle tracking echocardiography were utilized.
  • Assessment focused on LA and LV function, including global longitudinal strain (GLS).

Main Results:

  • Twenty-two percent of patients developed POAF.
  • POAF was associated with older age, increased heart rate, larger LA dimensions/volumes, and reduced left ventricular ejection fraction (LVEF).
  • Significantly lower LA and LV global longitudinal strain (LVGLS) were observed in POAF patients. LA longitudinal strain ≤ 23.1 and LVGLS ≤ -14.4 were significant predictors.

Conclusions:

  • Preoperative LA and LV global longitudinal strain are significant predictors of POAF in CABG patients.
  • Echocardiographic deformation measures, particularly GLS, enhance clinical profiles for identifying patients at high risk of POAF.
Abstract

Keywords:
Atrial fibrillationCoronary artery bypass graftLA longitudinal strainLV global longitudinal strain

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