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Guidance value of echocardiography in prosthesis-patient mismatch after mitral valve replacement
Author(s): 
Pages: 3025-3027
Year: Issue:  18
Journal: The Journal of Practical Medicine

Keyword:  心脏瓣膜人工超声心动图;
Abstract: 目的:探讨运用超声心动图技术测算二尖瓣置换术(MVR)后人工心脏瓣膜-患者不匹配(PPM)现象的发生率以及PPM与术后早期血流动力学的关系.方法:比较320例不同种类、不同大小人工瓣膜MVR术后PPM发生率,PPM与术后早期血流动力学关系.结果:320例中机械瓣和生物瓣置换术后PPM的发生率分别为23.98%和54.05%;置换>25 mm人工瓣膜213例,PPM发生率为21.13%,≤25 mm人工瓣膜107例,PPM发生率为50.47%.PPM组术后二尖瓣平均跨瓣压差和平均流速分别为(24.67±5.16)mmHg和(2.36±0.40)m/s,非PPM组分别为(12.52±2.26)mmHg和(1.21±0.32)m/s.结论:运用超声技术提示MVR术后PPM现象普遍存在,尤其是置换小号及生物瓣膜者;PPM影响术后早期患者的血流动力学改变.
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