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[Atrial Fibrillation After Coronary Artery Bypass Grafting]

O A Rubanenko1,2, O V Fatenkov1,2, S M Khokhlunov1,2

  • 1Samara State Medical University, Samara, Russia.

Kardiologiia
|August 2, 2017
PubMed

Insights

Inflammation factors like interleukin-6 and interleukin-8 play a key role in developing atrial fibrillation (AF) after coronary artery bypass grafting (CABG). Higher levels predict AF risk in patients post-surgery.

Area of Science:

  • Cardiology
  • Biomedical Science
  • Surgical Outcomes

Background:

  • Atrial fibrillation (AF) is a common complication after coronary artery bypass grafting (CABG).
  • Understanding the early postoperative predictors of AF is crucial for patient management.
  • Inflammation and myocardial ischemia are suspected contributors to AF development post-CABG.

Purpose of the Study:

  • To investigate the role of inflammatory markers and myocardial ischemia in the early development of AF following CABG.
  • To identify specific factors associated with new-onset AF in the postoperative period after CABG.

Main Methods:

  • A cohort of 96 patients undergoing CABG was studied.
  • Patients were divided into two groups: those who developed postoperative AF and those who did not.
  • Levels of inflammatory markers (interleukin-6, interleukin-8, interleukin-10, C-reactive protein, fibrinogen) and troponin were measured. Left atrial dimension was also assessed.

Main Results:

  • New-onset AF occurred approximately 5 days after CABG.
  • No significant differences in interleukin-10, C-reactive protein, fibrinogen, or troponin were observed between groups.
  • Elevated levels of interleukin-6 (>68 pg/ml) and interleukin-8 (>9.5 pg/ml), along with a left atrial dimension >41 mm, were significantly associated with the development of postoperative AF.

Conclusions:

  • Increased levels of interleukin-6 and interleukin-8 are linked to the development of AF after CABG.
  • Inflammatory processes are confirmed to play a significant role in the occurrence of AF post-CABG.
  • Left atrial size is also a critical predictor of postoperative AF.
Abstract

Keywords:
atrial fibrillationcoronary artery bypass graftingcytokinesinflammation

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