The Study Of Distribution Of Extracoronary Atherosclerosis And Relationship Between Extracoronary Atherosclerosis And Coronary Artery Atherosclerosis By Ultrasound

Atherosclerosis (AS) is a systemic disease with the characteristic features of intimal thickening and regressive changes. It affects mainly the large elastic arteries and medium sized muscular arteries. the arteries most commonly affected are coronary, cerebral arteries, the aorta with its major divisions (such as innominate, common carotid and iliac arteries) and the large arteries of the low extremities.197 patients with cerebral and cardiovascular disease and 36 cases of normal control group were examined echocardiographically at the extracoronary arteries including carotid on both sides, subclavicular on both sides, abdominal aorta, iliac and femoral arteries on both sides.Objects: 1 .to seek out the manner of the distribution of atherosclerotic plaques at extracoronary arteries: 2. to investigate the relationship between the extent and severity of extracoronary atherosclerosis and extent and severity of coronary artery disease.Results and discussion: 1. Atherosclerotic plaques tended to locate in certain arteries in patients exposed to complex multiple risk factors. In descending order of incidence, these were carotid artery, subclavicular artery, abodominal artery, femoral artery and iliac artery: 73%,63%,56%,54% and 51% respectively. But the distributive manner was different according to different disease, the incidence of femoral, abodominal and iliac artery atherosclerotic plaques were significantly higher in coronary artery disease (CAD) than in the other groups (p<0.01); The incidence of carotid artery plaque was the highest in patients with stroke, There was significant...