periinfarction block


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per·i·in·farc·tion block

an electrocardiographic abnormality associated with a myocardial infarct and caused by delayed activation of the myocardium in the region of the infarct; characterized by an initial vector directed away from the infarcted region with the terminal vector directed toward it.

per·i·in·farc·tion block

(per'ē-in-fahrk'shŭn blok)
An electrocardiographic abnormality associated with an old myocardial infarct and caused by delayed activation of the myocardium in the region of the infarct; characterized by an initial vector directed away from the infarcted region with the terminal vector directed toward it.