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Clinical and coronary angiographic characteristics of patients with coronary slow flow

Hüseyin Yilmaz1, Ibrahim Demir, Zehra Uyar

  • 1Department of Cardiology, Akdeniz University School of Medicine, Antalya, Turkey. hyilmaz@akdeniz.edu.tr

Acta Cardiologica
|November 19, 2008
PubMed

Insights

Patients with slow coronary flow (SCF) exhibit metabolic disturbances, including higher cholesterol and increased prevalence of metabolic syndrome. This suggests SCF may be linked to microvascular dysfunction and early atherosclerosis.

Area of Science:

  • Cardiology
  • Vascular Biology
  • Metabolic Syndrome

Background:

  • Coronary slow flow (SCF) is an angiographic finding of delayed distal vessel opacification without significant epicardial coronary artery disease.
  • SCF is clinically significant, potentially causing angina, myocardial infarction, and hypertension.
  • Underlying mechanisms like endothelial and microvascular dysfunction are suspected, with SCF possibly representing early atherosclerosis.

Purpose of the Study:

  • To investigate the clinical and angiographic properties associated with the slow coronary flow phenomenon.
  • To identify potential risk factors and clinical characteristics of patients with SCF.

Main Methods:

  • A case-control study involving 85 patients with SCF and 85 controls with normal coronary arteries.
  • Coronary flow assessed using the thrombolysis in myocardial infarction (TIMI) frame count method.
  • Clinical and angiographic data collected from patient records.

Main Results:

  • Patients with SCF had higher total cholesterol and LDL-C levels compared to controls.
  • Higher body mass index (BMI) and increased frequency of metabolic syndrome were observed in the SCF group.
  • SCF patients reported more symptoms and had more frequent hospital admissions.

Conclusions:

  • Patients with SCF demonstrate significant metabolic derangements.
  • A high incidence of metabolic syndrome in SCF patients suggests a link to coronary microvascular dysfunction.
  • Metabolic syndrome may contribute to the development of coronary microvascular dysfunction through various pathways.
Abstract

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