【摘要】 近年来二尖瓣生物瓣膜的应用比例越来越高，发生瓣膜衰败的患者随之增加，严重影响患者生命质量，而再次开胸手术的高风险令许多二尖瓣衰败的患者失去再次手术的机会。随着介入手术在我国快速发展，经导管二尖瓣瓣中瓣置换术逐渐被广大瓣膜衰败患者所接受。本文介绍1例经导管穿刺房间隔路径的二尖瓣瓣中瓣置换术。通过术前CT详细评估制定手术计划，患者手术顺利，术后未发生并发症。对于二尖瓣生物瓣膜衰败的高危患者来说经导管二尖瓣瓣中瓣置换术不失为一种更好的替代方案。更多还原

【Abstract】 In recent years,the use of bioprosthetic mitral valves has been increasing,leading to a growing number of patients experiencing bioprosthesis degeneration,significantly impacting their quality of life.The high risk of reoperation has deprived many patients with mitral bioprosthesis degeneration of the opportunity for a second surgery.With the rapid development of interventional procedures in our country,transcatheter mitral valve-in-valve replacement is gradually being accepted by a large number of patients with bioprosthesis degeneration.We report a case of transcatheter mitral valve-in-valve replacement via transseptal puncture.The surgical plan was carefully formulated based on preoperative CT evaluation,and the patient underwent the procedure smoothly with no significant adverse events postoperatively.Transcatheter mitral valve-in-valve replacement may be a better alternative for patients at high risk of mitral bioprosthesis degeneration.更多还原