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Related Experiment Videos

Hypothalamic-pituitary function in children with optic nerve hypoplasia.

G Costin, A L Murphree

    American Journal of Diseases of Children (1960)
    |March 1, 1985
    PubMed
    Summary
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    Optic nerve hypoplasia (ONH) is linked to significant hypopituitarism and hyperprolactinemia. These conditions can cause neurological issues and affect growth, even with normal height in childhood.

    Area of Science:

    • Pediatric Endocrinology
    • Neuro-ophthalmology

    Background:

    • Optic nerve hypoplasia (ONH) is a congenital condition affecting vision.
    • The association between ONH and endocrine dysfunction, particularly hypopituitarism, requires further investigation.

    Purpose of the Study:

    • To investigate the clinical characteristics and hypothalamic-pituitary function in pediatric patients with ONH.
    • To explore the relationship between ONH, hypopituitarism, and neurological abnormalities.

    Main Methods:

    • Retrospective study of 23 patients (6 months to 19 years) diagnosed with ONH.
    • Assessment of clinical features, visual acuity, optic disc size, and neuroimaging (septum pellucidum).
    • Evaluation of hypothalamic-pituitary function, including prolactin levels and response to thyrotropin-releasing hormone.

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    Main Results:

    • All patients exhibited decreased visual acuity and small optic discs.
    • Hypopituitarism was diagnosed in 15 patients (65%).
    • Elevated fasting and stimulated prolactin levels were observed in ONH patients compared to controls.

    Conclusions:

    • ONH is associated with a high incidence of hypopituitarism, hyperprolactinemia, and neurological abnormalities.
    • Hyperprolactinemia may temporarily stimulate growth, masking growth hormone deficiency in some ONH patients.
    • Normal childhood height or the presence of the septum pellucidum do not rule out underlying hypopituitarism in ONH.