Ischemic heart disease and platelet aggregation. The Caerphilly Collaborative Heart Disease Study

Elwood, Peter Creighton, Renaud, S., Sharp, D. S., Beswick, A. D., O'Brien, John R. and Yarnell, John W. 1991. Ischemic heart disease and platelet aggregation. The Caerphilly Collaborative Heart Disease Study. Circulation 83 (1) , pp. 38-44. 10.1161/01.CIR.83.1.38

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Abstract

The Caerphilly Collaborative Heart Disease Study is based on a large cohort of men (2,398) aged 49-66 years at the time of study. Platelet aggregation induced by collagen, thrombin, and ADP was measured in fasting blood samples and was related to prevalent angina, past myocardial infarction, and electrocardiographic evidence of ischemic heart disease. A number of subjects had taken aspirin, other nonsteroidal anti-inflammatory drugs, or other drugs affecting platelet aggregation 7 days before blood sample collection; after the exclusion of these subjects, data were available for 1,811 men. No relations were demonstrated with angina, but significant relations were shown between past myocardial infarctions and electrocardiographic evidence of ischemia and ADP-induced aggregation (both primary and secondary) and between electrocardiographic evidence of ischemia and thrombin-induced aggregation. The strongest relation indicated more than a twofold increase in the odds of a past myocardial infarction in subjects of the highest fifth of ADP-induced primary platelet aggregation compared with the lowest fifth. No significant relations were detected with collagen-induced aggregation. Accounting for a number of possible confounding factors had a relatively small impact on the relations between platelet aggregation and ischemic heart disease. Other evidence, including the well-established effect of aspirin on reducing the incidence of ischemic heart disease, indicates that the relations we describe are unlikely to be simply an effect of IHD on platelets.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Publisher:	American Heart Association
ISSN:	0009-7322
Last Modified:	10 Jun 2023 01:18
URI:	https://orca.cardiff.ac.uk/id/eprint/64610

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