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The Pathological Basis and Microanatomy of Occlusive Thrombus Formation in Human Coronary Arteries [and Discussion]
M. J. Davies, T. Thomas, J. McMichael and P. D. Richardson
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Vol. 294, No. 1072, Interaction of the Platelets and the Vessel Walls (Aug. 18, 1981), pp. 225-229
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/2395617
Page Count: 6
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Myocardial necrosis, usually called infarction, occurs in different patterns. A common form is necrosis of one segment of the left ventricle, i.e., anterior, septal, lateral or posterior. This regional infarction is consistently associated with an acute occlusive thrombosis of the artery supplying that region. Diffuse necrosis involving the whole circumference, usually the subendocardial zone, of the ventricle is not consistently associated with thrombi. Occlusive thrombi identified in post-mortem coronary arteriograms have been reconstructed in their entirety from serial sections at 150 μ m intervals. Most occlusive thrombi were found to be associated with a dissection track into the intima at an atheromatous plaque. The break into the plaque usually extended over several millimetres, often in spirals, so that a mass of thrombus within the plaque compressed the original lumen. Previous accounts of plaque rupture or cracking greatly underestimated the magnitude of the dissection of blood into the intima.
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences © 1981 Royal Society