应用Ken-Valve经心尖入路经导管主动脉瓣置换术治疗单纯主动脉瓣重度反流一例

Transapical transcatheter aortic valve replacement using Ken-Valve for pure severe aortic regurgitation:A case report

经导管主动脉瓣置换术(transcatheter aortic valve replacement,TAVR)已成为老年严重主动脉瓣狭窄患者的首选治疗方法。目前临床上应用的大多数介入瓣膜植入依赖钙化的自身主动脉瓣的定位和锚定。我们为1例82岁无钙化性单纯主动脉瓣重度反流男性患者成功植入Ken-Valve介入支架瓣膜。术后3个月随访,患者心功能明显好转,超声心动图提示人工瓣膜流速、跨瓣压差处于正常范围,无瓣周漏,短期临床效果满意。拥有三个定位件设计的Ken-Valve介入支架瓣膜适合应用于单纯主动脉瓣反流患者。

Transcatheter aortic valve replacement(TAVR)has become the preferred treatment for severe aortic stenosis.The localization and anchor of many transcatheter heart valves available in the clinic today are dependent on the calcific aortic valve leaflet of patients.We reported here a successful case of transapical aortic valve implantation with Ken-Valve heart valve in an 82-year-old male patient with pure severe aortic regurgitation without native valve calcium.Postoperative follow-up(3 months after the surgery)showed that the cardiac function significantly improved.The echocardiography indicated that the Ken-Valve prosthesis worked well without perivalvular regurgitation.The short-term clinical effect was satisfactory.The Ken-Valve with three position anchors is proved to be suitable for the treatment of pure aortic regurgitation.