Key result
Hypoplasia of the posterior mitral leaflet concurrent with a supravalvular mitral ring is identified as a rare cause of congenital mitral stenosis.
Reports a rare case of congenital mitral stenosis caused by hypoplasia of the posterior mitral leaflet concurrent with a supravalvular mitral ring.
Hypothesis-generating at Level 5; leaves open clinical relevance pending prospective validation.
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Zhang et al. (2014) studied this question. Hypoplasia of the posterior mitral leaflet concurrent with a supravalvular mitral ring is identified as a rare cause of congenital mitral stenosis.
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