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二尖瓣脱垂但无二尖瓣反流时乳头肌过度牵拉及二尖瓣环扩张。

Excessive papillary muscle traction and dilated mitral annulus in mitral valve prolapse without mitral regurgitation.

作者信息

Lee T M, Su S F, Huang T Y, Chen M F, Liau C S, Lee Y T

机构信息

College of Medicine, National Taiwan University.

出版信息

Am J Cardiol. 1996 Aug 15;78(4):482-5. doi: 10.1016/0002-9149(97)00002-7.

DOI:10.1016/0002-9149(97)00002-7
PMID:8752199
Abstract

This study demonstrated excessive papillary muscle displacement during peak systole but normal mitral annulus function during the cardiac cycle in patients with mitral valve prolapse and no mitral regurgitation. The excessive papillary muscle displacement may play an important role in the pathogenesis of the superior displacement of mitral leaflets in patients with mitral valve prolapse.

摘要

本研究表明，在二尖瓣脱垂且无二尖瓣反流的患者中，收缩期峰值时乳头肌移位过度，但心动周期中二尖瓣环功能正常。乳头肌过度移位可能在二尖瓣脱垂患者二尖瓣叶向上移位的发病机制中起重要作用。

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引用本文的文献

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J Cardiovasc Magn Reson. 2021 Oct 11;23(1):107. doi: 10.1186/s12968-021-00800-w.
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Timing surgery in mitral regurgitation: defining risk and optimising intervention using stress echocardiography.二尖瓣反流手术时机的选择：利用负荷超声心动图确定风险并优化干预措施。
Echo Res Pract. 2016 Dec;3(4):R45-R55. doi: 10.1530/ERP-16-0019. Epub 2016 Oct 13.
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Quantitative mitral valve anatomy and pathology.
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