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Coronary collateral circulation is less developed when ischaemic heart disease coexists with diabetes

Krzysztof Rzeczuch1, Dariusz Jagielski, Adam Kołodziej

  • 1Department of Cardiology, 4th Military Hospital, Wrocław, Poland.

Kardiologia Polska
|September 25, 2003
PubMed

Insights

Diabetic patients with ischemic heart disease exhibit poorer coronary collateral circulation development compared to non-diabetic individuals. This impaired collateral circulation in diabetes may contribute to worse outcomes after myocardial infarction.

Area of Science:

  • Cardiology
  • Diabetology
  • Vascular Biology

Background:

  • Coronary collateral circulation significantly influences outcomes after myocardial infarction (MI).
  • Diabetes mellitus is associated with endothelial dysfunction, potentially impairing collateral development.
  • Impaired coronary collateral circulation may exacerbate post-MI complications in diabetic patients.

Purpose of the Study:

  • To compare the development of coronary collateral circulation in patients with advanced ischemic heart disease (IHD) with and without diabetes.

Main Methods:

  • A study group of 70 diabetic patients with total coronary occlusion underwent coronary angiography.
  • A control group of 70 non-diabetic patients, matched for age, gender, and MI history, was included.
  • Coronary collateral circulation was quantified using the collateral score (CS).

Main Results:

  • Diabetic patients showed significantly less developed collateral circulation (lower CS) compared to non-diabetic patients (1.47 vs. 2.03, p < 0.05).
  • Collateral score (CS) was independently associated with the presence of diabetes and the number of affected coronary vessels.
  • Diabetic patients presented with more advanced coronary atherosclerotic lesions.

Conclusions:

  • Patients with IHD and diabetes have significantly impaired coronary collateral circulation compared to those without diabetes.
  • The extent of coronary lesions does not fully explain the reduced collateralization in diabetic patients.
  • Diabetes is an independent predictor of reduced coronary collateral circulation in patients with IHD.
Abstract

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