Infarcts involving which pa of the myocardium cause aneurysm as a post-Myocardial infarction complication
Correct Answer: Anterior transmural MI
Description: * Ventricular aneurysms are circumscribed, thinwalled fibrous, noncontractile outpouchings of the ventricle. * An aneurysm is a severely scarred poion of infarcted ventricular myocardium that does not contract normally. * A ventricular aneurysm may develop in some patients following a large MI (especially anterior). * Instead, during ventricular systole the aneurysmal poion bulges outward while the rest of the ventricle is contracting. * Ventricular aneurysms may occur on the anterior or inferior surface of the hea. Ref: Friedman BM, Dunn MI. Post infarction ventricular aneurysms. Clinical cardiology.
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