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Bardet-Biedl syndrome.

C G Keith

    Australian Journal of Ophthalmology
    |May 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Bardet-Biedl syndrome (BBS) is a rare genetic disorder characterized by obesity, polydactyly, and vision loss. Early diagnosis is crucial as incomplete cases may be underdiagnosed, affecting its true prevalence.

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    Area of Science:

    • Genetics
    • Pediatrics
    • Ophthalmology

    Background:

    • Bardet-Biedl syndrome (BBS) is a rare genetic disorder.
    • Historically known as Laurence-Moon-Biedl syndrome.
    • Characterized by obesity, polydactyly, pigmentary retinopathy, mental deficiency, and hypogonadism; renal disease is a recently described feature.

    Purpose of the Study:

    • To describe the clinical features and prevalence of Bardet-Biedl syndrome.
    • To highlight the importance of recognizing incomplete or partial cases.

    Main Methods:

    • Case series review of fourteen Bardet-Biedl syndrome patients.
    • Clinical feature documentation including obesity, polydactyly, retinopathy, intelligence, hypogonadism, and renal disease.

    Main Results:

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    • All fourteen patients had pigmentary retinopathy, often severe and affecting central vision early.
    • Subnormal intelligence was present in all cases; obesity (12), polydactyly (10), hypogonadism (8), and renal disease (2) were also observed.
    • Estimated prevalence of Bardet-Biedl syndrome is 1:160,000.

    Conclusions:

    • Bardet-Biedl syndrome presents with a spectrum of features, with pigmentary retinopathy and subnormal intelligence being nearly universal.
    • The condition may be more common than previously thought due to underdiagnosis of partial forms.
    • Further research is needed to understand the full spectrum and prevalence of BBS.