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Atrial Fibrillation: A Novel Risk Factor for No-Reflow Following Primary Percutaneous Coronary Intervention

Adnan Kaya1, Muhammed Keskin2, Mustafa Adem Tatlisu3

  • 1Cardiology, Duzce University School of Medicine, Duzce, Turkey.

Angiology
|April 10, 2019
PubMed

Insights

Atrial fibrillation (AF) is common in ST-segment elevation myocardial infarction (STEMI) patients. This study found AF independently predicts the no-reflow phenomenon after primary percutaneous coronary intervention, highlighting AF as a significant risk factor.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Clinical Research

Background:

  • Atrial fibrillation (AF) is a prevalent arrhythmia in patients experiencing ST-segment elevation myocardial infarction (STEMI).
  • The association between AF and the no-reflow (NR) phenomenon following primary percutaneous coronary intervention (pPCI) in STEMI patients remains under-investigated.
  • Understanding this relationship is crucial for optimizing treatment strategies and patient outcomes.

Purpose of the Study:

  • To investigate the association between atrial fibrillation (AF) and the no-reflow (NR) phenomenon in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (pPCI).
  • To identify independent predictors of NR in this patient population.

Main Methods:

  • Retrospective analysis of 2452 STEMI patients who underwent pPCI.
  • Patients were categorized into AF (n=370) and No-AF (n=2095) groups.
  • No-reflow was defined as a Thrombolysis In Myocardial Infarction (TIMI) flow grade <3 post-procedure. Multivariable logistic regression was employed.

Main Results:

  • No-reflow rates were significantly higher in the AF group (29.1%) compared to the No-AF group (11.8%) (P < .001).
  • Patients in the AF group were older, had higher rates of three-vessel disease, and lower left ventricular ejection fraction.
  • Multivariable analysis identified AF as an independent predictor of NR (OR: 1.81, 95% CI: 1.63-2.04, P < .001), alongside age, Killip class, anterior MI, diabetes, CKD, stent length, and smoking.

Conclusions:

  • Atrial fibrillation is a significant independent predictor of the no-reflow phenomenon in STEMI patients undergoing pPCI.
  • The presence of AF may indicate a higher risk of impaired coronary blood flow post-intervention.
  • These findings underscore the importance of considering AF as a critical risk factor influencing outcomes in STEMI management.

Keywords:
atrial fibrillationno-reflowprimary percutaneous coronary intervention

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