_:vb50952646 . _:vb50952646 . _:vb50952646 . _:vb50952646 "A tricuspid valve disease that is characterized by the narrowing of the orifice of the tricuspid valve of the heart. This causes increased resistance to blood flow through the valve."^^ . _:vb50952646 . _:vb50952646 "url:http://en.wikipedia.org/wiki/Tricuspid_valve_stenosis"^^ . _:vb50952646 .