infarct extension

infarct extension

a myocardial infarction that has spread beyond the original area, usually as a result of the death of cells in the ischemic margin of the infarct zone.
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15), examining the release of CKMB to estimate infarct size in 35 MI patients, contended that the appearance of a second peak of CKMB before the return of the enzyme to baseline was not associated with an infarct extension.
CK-MB is also an essential component in assessing re-infarction or infarct extension in patients.
Much of the role of the laboratory has traditionally been associated with biochemical marker testing for diagnosis of acute MI, assessment of re-infarction or infarct extension, and estimating the quantity of infarcted tissue (infarct sizing).