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The relation between impaired glucose tolerance and slow coronary flow
Emrah Binak1, Huseyin Gunduz, Muslum Sahin
1Turkish Heart Foundation Clinic, 34360 Sisli Istanbul, Turkey. e_binak@yahoo.com
International Journal of Cardiology
|November 22, 2005
Summary
Impaired glucose tolerance, a precursor to type 2 diabetes, is linked to slow coronary flow. This condition may be an independent cause of slow coronary flow, impacting cardiovascular health.
Area of Science:
- Cardiology
- Endocrinology
- Metabolic Syndrome
Background:
- Impaired glucose tolerance (IGT) precedes type 2 diabetes and elevates cardiovascular risk.
- IGT is associated with endothelial dysfunction, a key factor in cardiovascular disease.
- Slow coronary flow (SCF) is an angiographic finding linked to endothelial dysfunction.
Purpose of the Study:
- To investigate the relationship between impaired glucose tolerance and slow coronary flow.
- To determine if IGT is an independent risk factor for SCF.
Main Methods:
- Prospective study comparing 28 patients with SCF and 30 controls with normal coronary flow.
- Oral glucose tolerance test (OGTT) performed after 12-hour fasting.
- Measurements included lipid profile, hemoglobin A1c, and blood pressure.
Main Results:
- No significant differences in age, lipids, HbA1c, or blood pressure between groups.
- Patients with SCF had significantly higher 2-hour plasma glucose levels during OGTT (P=0.001).
- A significantly higher proportion of SCF patients met criteria for IGT (57% vs. 23%, P=0.002).
Conclusions:
- Impaired glucose tolerance is significantly more prevalent in patients with slow coronary flow.
- IGT may be an independent etiological factor for the development of slow coronary flow phenomenon.
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