In nonobstructive hypertrophic cardiomyopathy, the thickened heart muscle does not block the flow of blood out of the ventricle. 对于非梗阻性的肥厚型心肌病,异常增厚的心脏肌肉并不会阻碍心室将血液输送到全身各处。
Exertional syncope occurs in aortic stenosis or hypertrophic cardiomyopathy, both of which limit increased cardiac output on exertion. 劳力性晕厥见于主动脉瓣狭窄或肥厚型心肌病,两者都限制活动时心排血量的增加。