二尖瓣狭窄

二尖瓣疾病的分期[21]Nishimura RA, Otto CM, Bonow RO, et al. 2014 AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation. 2014;129:e521-e643.http://circ.ahajournals.org/content/129/23/e521.longhttp://www.ncbi.nlm.nih.gov/pubmed/24589853?tool=bestpractice.com

[Figure caption and citation for the preceding image starts]: 二尖瓣狭窄的分期改编自Nishimura RA,Otto CM,Bonow RO,et al.Circulation.2014;129:e521-e643. [Citation ends].

与瓣膜成型术结局有关的超声心动图变量[22]Wilkins GT, Weyman AE, Abascal VM, et al. Percutaneous balloon dilatation of the mitral valve: an analysis of echocardiographic variables related to outcome and the mechanism of dilation. Br Heart J. 1988;60:299-308.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1216577/pdf/brheartj00082-0033.pdfhttp://www.ncbi.nlm.nih.gov/pubmed/3190958?tool=bestpractice.com

以下是按严重性评分1-4分分级：

• 瓣膜的活动性

• 钙化

• 瓣叶增厚

• 瓣下附属装置变形。

最大的病理积分是16，最小为4。

瓣膜积分<9表明球囊瓣膜成型术结局良好。