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Hypoxemia and pulmonary function in acromegaly.

R Luboshitzky, D Barzilai

    The American Review of Respiratory Disease
    |March 1, 1980
    PubMed
    Summary
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    Patients with acromegaly often have undiagnosed hypoxemia (low blood oxygen) due to ventilation-perfusion issues. This subclinical lung disease is linked to the duration of acromegaly, not growth hormone levels.

    Area of Science:

    • Endocrinology
    • Pulmonology
    • Internal Medicine

    Background:

    • Acromegaly, a condition caused by excess growth hormone, can affect multiple organ systems.
    • Pulmonary complications in acromegaly are not well-characterized, with previous studies suggesting potential lung volume changes.

    Purpose of the Study:

    • To investigate pulmonary function in patients with acromegaly.
    • To identify potential respiratory abnormalities, specifically hypoxemia and its correlation with disease characteristics.

    Main Methods:

    • Pulmonary function tests, including lung capacity and ventilatory function, were performed on 11 acromegaly patients.
    • Arterial blood gas analysis and lung perfusion scans were conducted to assess oxygen levels and lung perfusion.

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    Main Results:

    • All patients had normal ventilatory function and total lung capacity.
    • 80% of patients exhibited hypoxemia (low arterial oxygen levels).
    • Lung perfusion defects were observed in 4 out of 5 patients, and hypoxemia correlated significantly with the duration of acromegaly.

    Conclusions:

    • Pneumomegaly is uncommon in acromegaly.
    • Subclinical hypoxemia is prevalent in acromegaly patients, likely due to ventilation-perfusion derangements.
    • Prolonged growth hormone oversecretion may directly cause these respiratory abnormalities.