Chapter 39 Cardiomyopathies and dissecting haematoma of the aorta
Cardiomyopathies
Hypertrophic cardiomyopathy
This condition is characterized by a hypertrophic left ventricle that can contract strongly, but it is stiff and diastolic filling is impaired. This stiffness is more precisely described as reduced ventricular compliance. A number of different genetic defects can produce this condition; the genes involved code for a variety of sarcomeric proteins. Although some cases arise sporadically, approximately half of patients inherit the condition as an autosomal dominant trait with variable penetrance and expression. There are a number of clinical features (Fig. 3.39.1):


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