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Headache, hyperprolactinemia, and prolactinomas.

P M Strebel, H A Zacur, E B Gold

    Obstetrics and Gynecology
    |August 1, 1986
    PubMed
    Summary
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    Headaches in women with high prolactin (PRL) levels are linked to pituitary adenomas, not just PRL levels. The mass effect of a prolactinoma, a type of pituitary tumor, is the likely cause of headaches.

    Area of Science:

    • Endocrinology
    • Neurology

    Background:

    • Nonpuerperal hyperprolactinemia is a condition characterized by elevated serum prolactin (PRL) levels.
    • Headaches are a common symptom in women, but their association with hyperprolactinemia requires clarification.

    Purpose of the Study:

    • To investigate the relationship between headaches and elevated serum prolactin (PRL) levels or the presence of a PRL-secreting pituitary adenoma in women.
    • To determine if headaches are caused by high PRL levels or the physical presence of a prolactinoma.

    Main Methods:

    • A cohort of 469 women with secondary amenorrhea and/or galactorrhea were studied across four clinical centers.
    • 212 women were diagnosed with a prolactinoma, a type of pituitary tumor.
    • Statistical analysis, including relative odds and chi-squared tests, was used to assess the association between headaches, prolactinoma, and PRL levels.

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    Main Results:

    • Headaches were significantly more frequent in women with a prolactinoma (relative odds = 3.92).
    • This association persisted after adjusting for PRL levels, study center, and other potential confounding factors.
    • Hyperprolactinemia was linked to headaches only when a prolactinoma was present, not in its absence.

    Conclusions:

    • The space-occupying mass effect of a prolactinoma is the probable cause of headaches in women with nonpuerperal hyperprolactinemia.
    • Headache may serve as a valuable indicator for the presence of an occult prolactinoma in women presenting with secondary amenorrhea and/or galactorrhea.