主动脉瓣置换、升主动脉置换术主动脉瓣置换、升主动脉置换术护理查房护理查房正常的主动脉瓣有三个瓣叶：正常的主动脉瓣有三个瓣叶：左半月瓣、右半月瓣和后半月瓣心室舒张期心室舒张期Ventricular diastole心室收缩期心室收缩期Ventricular systole2023/1/6主动脉瓣狭窄的病因Causes of aortic stenosis先天性畸形Congenital malformations老年性主动脉瓣钙化Senile aortic valve calcification风湿性心脏病Rheumatic heart disease主动脉瓣叶粘连、融合Aortic valve leaflets adhesion,fusion主动脉瓣狭窄aortic stenosis主动脉瓣主动脉瓣开口面积减少开口面积减少肺静脉高压肺静脉高压 右心衰右心衰竭竭左心室射血负荷左心室射血负荷左室向心性肥厚左室向心性肥厚 左心室收缩功能左心室收缩功能顺应性下降顺应性下降左心衰左心衰病理生理pathophysiologyPulmonary venous hypetension2023/1/62
