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Hyperparathyroidism

R K Rude1

  • 1Division of Endocrinology/Diabetes/Hypertension, University of Southern California, Los Angeles, USA.

Otolaryngologic Clinics of North America
|August 1, 1996
PubMed
Summary
This summary is machine-generated.

Primary hyperparathyroidism, a common cause of hypercalcemia, is often detected early through biochemical screening. Many patients are asymptomatic, and guidelines now exist for medical follow-up of these cases.

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Area of Science:

  • Endocrinology
  • Nephrology
  • Bone Metabolism

Background:

  • Primary hyperparathyroidism is the leading cause of hypercalcemia.
  • Historically, complications like renal stones and osteitis fibrosa were common, but biochemical screening enables earlier detection.
  • Modern biochemical assays for parathyroid hormone (PTH) allow for accurate diagnosis in over 90% of cases.

Purpose of the Study:

  • To review the current understanding and management of primary hyperparathyroidism.
  • To highlight the shift in clinical presentation towards asymptomatic disease due to early detection.
  • To discuss treatment options, including surgery and medical therapy, and the management of asymptomatic patients.

Main Methods:

  • Review of current literature and clinical guidelines on primary hyperparathyroidism.

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  • Analysis of diagnostic advancements, particularly PTH assays.
  • Evaluation of surgical and medical treatment strategies, including sex steroid replacement, calcitonin, phosphate, and bisphosphonates.

    • Main Results:

    • Asymptomatic primary hyperparathyroidism is increasingly common, with up to 80% of patients showing no disease-specific signs or symptoms.
    • Surgical neck exploration remains the primary treatment for symptomatic or complicated cases.
    • Medical therapy is an option for non-surgical candidates, though its long-term efficacy is not fully established. Sex steroid replacement shows some promise in postmenopausal women.
    • A significant proportion of asymptomatic patients show no disease progression, leading to established guidelines for medical follow-up.

    Conclusions:

    • Early biochemical screening has altered the presentation of primary hyperparathyroidism, leading to a higher prevalence of asymptomatic cases.
    • Management strategies must differentiate between symptomatic and asymptomatic disease, with surgery indicated for the former and careful medical follow-up for the latter.
    • While medical therapies exist, their long-term effectiveness is uncertain, and continued monitoring is crucial for asymptomatic patients, with surgery recommended if symptoms develop.