In both kinds of hypertrophic cardiomyopathy, the thickened muscle makes the inside of the left ventricle smaller so that it holds less blood.

• 在所有两种类型的肥厚性心肌病中，左心室心脏肌肉的异常增厚都会导致其内腔的缩小，这样左心室的容血量就会降低。