Evaluation of Arterial Stiffness and Subfoveal Choroidal Thickness in Patients with Coronary Slow Flow

Zekeriya Dogan1, Cigdem Ileri2, Beste Ozben1

  • 1Department of Cardiology, Marmara University School of Medicine.

Acta Cardiologica Sinica
|September 18, 2023
PubMed

Insights

Coronary slow flow is linked to increased arterial stiffness and thinner choroid layers, suggesting it may be a sign of a systemic microvascular disorder affecting the entire arterial system.

Area of Science:

  • Cardiovascular Medicine
  • Ophthalmology
  • Vascular Biology

Background:

  • Coronary slow flow (CSF) may indicate a broader arterial system issue, not just localized to coronary arteries.
  • Systemic microvascular dysfunction is increasingly recognized as a contributor to cardiovascular events.

Purpose of the Study:

  • To investigate peripheral arterial stiffness and choroidal thickness in patients with CSF.
  • To explore the relationship between CSF, arterial stiffness, and ocular microvasculature.

Main Methods:

  • Fifty CSF patients and 25 controls underwent coronary angiography.
  • Peripheral arterial stiffness was assessed using the Mobil-O-Graph system.
  • Choroidal thickness was measured via enhanced depth imaging optical coherence tomography.

Main Results:

  • CSF patients exhibited higher peripheral systolic blood pressure, pulse pressure, central pulse pressure, and pulse wave velocity (PWV).
  • CSF patients had significantly thinner choroidal thickness compared to controls.
  • CSF was an independent predictor of increased PWV and reduced choroidal thickness.

Conclusions:

  • Increased peripheral arterial stiffness (PWV) and thinner choroid in CSF patients suggest a systemic microvascular disorder.
  • CSF may represent a coronary manifestation of a widespread vascular issue.
  • Further research into systemic implications of CSF is warranted.
Abstract

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