Contractile dysfuncation seen in which type of cardiomyopathy?
Dilated cardiomyopathy
Restrcited cardiomyopathy
Hyperophic cardiomyopathy
Infiltrative cardiomyopathy
Dilated cardiomyopathy (DCM) is characterized by progressive cardiac dilation and contractile (systolic) dysfunction, usually with concurrent hyperophy; regardless of cause, the clinicopathologic patterns are similar. DCM results in systolic (contractile) dysfunction. Causes include myocarditis, toxic exposures (e.g., alcohol), and pregnancy. In 20% to 50% of cases, mutations affecting cytoskeletal proteins are responsible. Ref Harrison 20th edition pg 1445
C.V.S