Progress in etiology of hypertrophic cardiomyopathy in children / 中国实用儿科杂志

ABSTRACT

Hypertrophic cardiomyopathy(HCM)in children is a kind of common cardiovascular genetic abnormalities disease,mostly single gene autosomal dominant inherited cardiomyopathy,although it does not exclude other genetic patterns. The main features of HCM are symmetrical or asymmetrical ventricular hypertrophy,and histopathological characteristics are myocyte hypertrophy,being disorganized,and fibrosis. Generally,HCM in children is divided into primary and secondary types. Mutation of sarcomere protein gene is the main cause of primary cardiomyopathy,followed by mutation of non-sarcomere protein gene.Mutation of MYH7,MYBPC3,TNNT and other genes are the main causes of sarcomere HCM. Secondary causes include obesity,diabetic mothers and babies,athlete syndrome,abnormal hormone elevation or drug-induced and so on.