Special features of coronary heart disease in people of the Indian sub-continent
Abstract
Contrary to the popular belief, coronary heart disease (CHD) is indeed common in the Indian sub-continent. Expatriate Indians in their newly adopted countries have 3 to 5 times more chance of developing CHD than the native population or the other immigrant groups. The well-known risk factors such as hypercholesterolemia, hypertension and smoking do not appear to play a major role, while the syndrome of insulin resistance seems to be an important risk factor for CHD in people of this sub-continent. Abdominal obesity, hypertriglyceridemia, and low plasma HDL cholesterol are the markers of this syndrome. Increased plasma insulin levels or even better, the C-peptide measurement may help in identifying the abnormality early. As CHD among Indians has been found to be severe and more diffuse with serious complications and increased mortality at a younger age, preventive measures need to be instituted early. Low fat and complex carbohydrate diet along with regular aerobic exercise may help reduce abdominal obesity, improve insulin sensitivity and HDL cholesterol levels. Hypertriglyceridemia uncontrolled by above measures may require pharmacotherapy with agents such as gemfibrozil. Smoking must be stopped to help reduce insulin resistance and improve HDL levels and endothelial function. Those with hypertension should be considered for therapy with ACE inhibitors, which may improve insulin sensitivity. In patients with insulin resistance, therapy with metformin or troglitazone may be…
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