Difference between revisions of "Heart valves"

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m (Ref PBoD)
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*Free edge - closest to the centre of the valve/interacts with other valve cusps.
*Free edge - closest to the centre of the valve/interacts with other valve cusps.


Three layers (from proximal (ventricular side) to distal (valsalva side)):<ref>PBoD P.558.</ref>
Three layers (from proximal (ventricular side) to distal (valsalva side)):<ref name=Ref_PBoD558>{{Ref PBoD|558}}</ref>
#Ventricularis.
#Ventricularis.
#*Elastic tissue.
#*Elastic tissue.
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*Mitral valve is usually normal.
*Mitral valve is usually normal.


===Micro===
===Microscopic===
Features:<ref>PBoD P.590</ref>
Features:<ref name=Ref_PBoD590>{{Ref PBoD|590}}</ref>
*Affects the valsalva side of the valve.
*Affects the valsalva side of the valve.
**It affects the fibrosa.
**It affects the fibrosa.
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===Gross===
===Gross===
Features:<ref>PBoD P.591.</ref>
Features:<ref name=Ref_PBoD591>{{Ref PBoD|591}}</ref>
*No commissural fusion.
*No commissural fusion.
**Commissural fusion typical of rheumatic heart disease.
**Commissural fusion typical of rheumatic heart disease.
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===General===
===General===
*Classically leads to mitral valve stenosis.
*Classically leads to mitral valve stenosis.
**Rheumatic fever accounts for 99% of mitral stenosis<ref>PBoD P.594.</ref>
**Rheumatic fever accounts for 99% of mitral stenosis.<ref name=Ref_PBoD594>{{Ref PBoD|594}}</ref>
*Disease less frequent today - as streptococcal pharynigits is treated.
*Disease less frequent today - as streptococcal pharynigits is treated.


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===Microscopic===
===Microscopic===
Features:<ref>PBoD P.593.</ref>
Features:<ref name=Ref_PBoD593>{{Ref PBoD|593}}</ref>
*Caterpillar cell (aka Anitschkow cells)
*Caterpillar cell (aka Anitschkow cells)
**Abundant eosinophilic cytoplasm.
**Abundant eosinophilic cytoplasm.
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