INTRODUCTIONAortic stenosis is one of the major causes of death in cardiovascular diseases,and transcatheter aortic valve implantation (TAVI) is a milestone in the field of cardiovascular intervention.Since the first implementation in October 2010,this technology has been gradually applied in China1-3 and accumulated certain experience.As TAVI technology is widely used clinically,various complications occur and it even leads to death.Five cases of patients with moderate-to-severe aortic stenosis were admitted in our department between February and April 2017 and treated with TAVI under general anesthesia.The postoperative complications were observed and the nursing methods were explored.