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  • Title: Polyvalvular heart disease with joint hypermobility, characteristic facies, and particular skin abnormalities: new cases of "polyvalvular heart disease syndrome" or new association?
    Author: Edouard T, Prost-Squarcioni C, Dulac Y, Vaysse F, Cavé H, Saugier-Veber P, Bourrouillou G, Verloes A, Tauber M, Bieth E.
    Journal: Eur J Med Genet; 2010; 53(1):29-34. PubMed ID: 19932204.
    Abstract:
    Polyvalvular heart disease has been reported in a handful of "private" syndromes that have been recently suggested to represent a single dominantly inherited condition, the polyvalvular heart disease syndrome. We report five cases in two unrelated families (one sporadic case in the first family and three siblings and their father in the second family) with the same association of polyvalvular heart disease, distinctive facial appearance, and, except the father in family 2, major joint hypermobility. Interestingly, in three of our patients (2 siblings and the sporadic case), electron microscopy revealed characteristic ultrastructural skin abnormalities with abnormal amorphous or microfibrillar deposits under the capillary basal membrane in the papillary dermis, suggestive of a connective tissue disorder, but different from Marfan syndrome or Ehlers-Danlos syndrome. Moreover, in family 2, three others sibs died in early infancy of their heart defect. Our two families and the other published cases might illustrate intrafamilial and interfamilial variability within a single condition. However, our two families disclose major joint hypermobility, normal stature, and ultrastructural skin abnormalities that were not described in the previous reports. These discrepancies let us to consider them as affected by a distinct disorder of the connective tissue.
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