ABSTRACT
Objective To explore the prevention of asymptomatic coronary intimal lesion by controlling the risk factors of coronary heart disease(CHD).Methods The relationship between the intimal lesion(such as yellow plaque、plaque rupture and/or thrombus formation)and risk factors(such as hypertension、diabetes、high blood LDL-C、blood pressure and blood sugar in patients with high blood LDL-C)was investigated in the non-culprit vessels of 120 patients with old myocardial infarction and stable angina pectoris by applying coronary angioscopy.Results Totally 155 non-culprit vessels in 120 patients were explored and the following findings were observed:(1) There are 80 cases(66.67%)of intimal lesion,40 cases(33.33%)without intimal lesion.(2)In the group with intimal lesion,the simple yellow plaque was observed in 30 cases(25.00%)and complex plaque in 50 cases.(3) In 120 patients,hypertension was observed in 69 cases(57.50%),high blood LDL-C in 79 cases(65.83%)and type 2 diabetes in 40 cases(33.33%).(4)The complex plaques was less common in patients whose BP was less than 140/90 mm Hg than in patients more than 140/90 mm Hg(P0.05).Conclusion The plaque rupture can be well prevented which can reduce the incidence of ACS if the high blood pressure、high blood sugar、high LDL-C are controlled to an ideal level.