A patient develops Mitral Regurgitation following myocardial infarction. The likely cause for this complication is: (A) Infarction involving the valve, (B) Rupture of chorda tendinae, (C) Dilatation of the ventricle, (D) Atrial fibrillation
Answer is B. (B) Rupture of chorda tendinae # MR is frequently secondary to ischemia.> Thus, it may occur as a consequence of ventricular remodeling or with fibrosis of a papillary muscle in patients with healed myocardial infarction.> It may develop acutely in patients with acute infarction involving the base of a papillary muscle.