What type of cardiomyopathy is known to be autosomal dominant?

Hypertrophic cardiomyopathy is recognized as an autosomal dominant condition, meaning only one copy of the mutated gene inherited from a parent is sufficient to predispose an individual to the disorder. This genetic characteristic leads to an abnormal thickening of the heart muscle, particularly affecting the interventricular septum, which can result in obstructed blood flow and various clinical symptoms. This familial aspect is significant, as it can be passed down through generations, impacting family health screening and management strategies.

In contrast, restrictive cardiomyopathy typically has different etiologies and is not primarily known for autosomal dominant inheritance patterns. Ischemic cardiomyopathy arises from reduced blood supply to the heart due to coronary artery disease rather than genetic factors. Dilated cardiomyopathy can have genetic components, but it is often influenced by a variety of factors including environmental and systemic diseases, making it less straightforward in terms of inheritance patterns compared to hypertrophic cardiomyopathy. Thus, the identification of hypertrophic cardiomyopathy as an autosomal dominant condition highlights its unique genetic linkage among cardiomyopathies.