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  • Title: Blood changes in atherosclerosis and long after myocardial infarction and venous thrombosis.
    Author: O'Brien JR, Etherington MD, Jamieson S, Lawford P, Lincoln SV, Alkjaersig NJ.
    Journal: Thromb Diath Haemorrh; 1975 Nov 15; 34(2):483-97. PubMed ID: 53892.
    Abstract:
    The following clinical groups of volunteers were studied: patients long after recovery from myocardial infarction (MI), others after recovery from deep vein thrombosis (DVT), patients with intermittent claudication, with diabetes, and male and female controls who were well matched. All were subjected to many platelet and clotting tests together with clinical, biochemical and haematological measurements in an attempt to find long term abnormalities in these various diseases. The male MIs differed very significantly from the controls in having much more heparin neutralizing activity (P less than 0.001)and less anti-thrombin (P less than 0.01). Less significantly, some bleeding time tests indicated less bleeding and the patients' platelets were larger. The females with MI had in general the same abnormalities but to a lesser degree. The patients with intermittent claudication, none of whom had a history of MI, had almost the same abnormalities and to the same degree. In deep vein thrombosis the heparin neutralizing activity was also clearly increased; the other tests were generally in the same direction but many were not significant. The diabetics had shorter bleeding times but little else abnormal relative to the controls, suggesting a different pathological process. When all male patients and controls were "scored" according to the degree of atherosclerosis there was a close overall correlation between the degree of atherosclerosis and the increase in the HNA level (r = --0.50, n = 66, P less than 0.001) and the decreased anti-thrombin (r = 0.25, n = 66, P less than 0.05).
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