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Hyperparathyroidism — Clinical Guidelines

Overview

Hyperparathyroidism involves abnormal production of parathyroid hormone (PTH) leading to dysregulation of calcium and phosphate metabolism, often resulting in hypercalcemia and related complications 7 14.

Diagnosis

Elevated serum calcium levels 2 24

Increased PTH levels (though sometimes normal or low in tertiary hyperparathyroidism) 22

Elevated urinary calcium excretion 2

Imaging studies (ultrasound, sestamibi scan, MRI) to localize parathyroid lesions 8 23

Intact PTH assays for accurate measurement 24 29

Management

Surgical intervention: Parathyroidectomy for primary hyperparathyroidism, especially for localized adenomas 6 18

Medical management: Cinacalcet for secondary hyperparathyroidism to lower PTH levels 1

Vitamin D analogs: For managing secondary hyperparathyroidism, though specific dosing not detailed in abstracts 4

Calcium and phosphate management: Adjustments based on clinical response and monitoring 15

Special Populations

Pregnancy: Early recognition and management of hyperparathyroidism and associated pancreatitis crucial 16 28

Comorbidities: Consideration of concurrent conditions like hyperthyroidism in diagnosis and management 12

Elderly: Increased vigilance for complications such as intracranial calcification and related neurological symptoms 38

Key Recommendations

Perform parathyroidectomy for patients with primary hyperparathyroidism and localized disease to achieve definitive cure 6 (Evidence: Strong)

Utilize intraoperative PTH monitoring to confirm successful removal and reduce re-operation rates 18 (Evidence: Strong)

Consider cinacalcet for managing secondary hyperparathyroidism in patients intolerant to or inadequately controlled by vitamin D analogs 1 (Evidence: Moderate)

Regularly monitor intact PTH levels for accurate assessment of hyperparathyroidism status 24 29 (Evidence: Moderate)

Evaluate for concurrent conditions such as thyroid disorders in patients with hyperparathyroidism 12 (Evidence: Expert opinion)

References

1 Cao J, Yang N, Huang C. Safety evaluation of cinacalcet: Signal mining and analysis of adverse events based on the FAERS database. PloS one 2025. link 2 Repas SJ, Schmeusser BN, McCullough WP, Lehrer DS, Travers JB, McCullough PJ. Normal 24-hour urine calcium concentrations after long-term daily oral intake of vitamin D in doses ranging from 5000 to 50,000 international units in 14 adult hospitalized psychiatric patients. The Journal of steroid biochemistry and molecular biology 2023. link 3 Wolffenbuttel BHR, Muller Kobold AC, Sobczyńska-Malefora A, Harrington DJ. Macro-B. BMJ case reports 2022. link 4 Latic N, Erben RG. Interaction of Vitamin D with Peptide Hormones with Emphasis on Parathyroid Hormone, FGF23, and the Renin-Angiotensin-Aldosterone System. Nutrients 2022. link 5 Ding F, Nie X, Li X, He Y, Li G. Data mining: Biological and temporal factors associated with blood parathyroid hormone, vitamin D, and calcium concentrations in the Southwestern Chinese population. Clinical biochemistry 2021. link 6 Stack BC, Tolley NS, Bartel TB, Bilezikian JP, Bodenner D, Camacho P et al.. AHNS Series: Do you know your guidelines? Optimizing outcomes in reoperative parathyroid surgery: Definitive multidisciplinary joint consensus guidelines of the American Head and Neck Society and the British Association of Endocrine and Thyroid Surgeons. Head & neck 2018. link 7 Potts JT. A short history of parathyroid hormone, its biological role, and pathophysiology of hormone excess. Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry 2013. link 8 Mazeh H, Stoll SJ, Robbins JB, Sippel RS, Chen H. Validation of the "Perrier" parathyroid adenoma location nomenclature. World journal of surgery 2012. link 9 Terris DJ, Chen N, Seybt MW, Gourin CG, Chin E. Emerging trends in the performance of parathyroid surgery. The Laryngoscope 2007. link 10 Chatterjee S. Permanent hypoparathyroidism following radioiodine treatment for hyperthyroidism. The Journal of the Association of Physicians of India 2004. link 11 Sugden CJ, Laird BJ. Hammers and nails: a report. Palliative medicine 2004. link 12 Kaplan E. Primary hyperparathyroidism and concurrent hyperthyroidism in a cat. The Canadian veterinary journal = La revue veterinaire canadienne 2002. link 13 Hortin GL, Carter AB. Intraoperative parathyroid hormone testing: survey of testing program characteristics. Archives of pathology & laboratory medicine 2002. link 14 Clement B. Parathyroid pathophysiology. Seminars in perioperative nursing 1998. link 15 Takagi H, Tominaga Y, Tanaka Y, Uchida K. Surgery for renal hyperparathyroidism--experience of 640 cases. Nagoya journal of medical science 1997. link 16 Inabnet WB, Baldwin D, Daniel RO, Staren ED. Hyperparathyroidism and pancreatitis during pregnancy. Surgery 1996. link80198-x) 17 Epstein FH. Contributions of clinical medicine to renal physiology. Kidney international 1996. link 18 Boggs JE, Irvin GL, Molinari AS, Deriso GT. Intraoperative parathyroid hormone monitoring as an adjunct to parathyroidectomy. Surgery 1996. link80040-7) 19 Eknoyan G. A history of the parathyroid glands. American journal of kidney diseases : the official journal of the National Kidney Foundation 1995. link90447-6) 20 Tampe J, Broszio P, Manneck HE, Missbichler A, Blind E, Müller KB et al.. Characterization of antibodies against human N-terminal parathyroid hormone by epitope mapping. Journal of immunoassay 1992. link 21 Ginn DR, Cate J, Tootle K, Salazar S, Watson S. Parathyroid adenoma manifested as pancreatitis and polyuria. Southern medical journal 1991. link 22 Goldman MH, Suresh A. Parathyroid adenoma with conflicting parathyroid hormone levels. New Jersey medicine : the journal of the Medical Society of New Jersey 1990. link 23 Kang EH, Schiebler ML, Gefter WB, Kressel HY. MR demonstration of bilateral intrathyroidal parathyroid glands. Journal of computer assisted tomography 1988. link 24 Bicknell EJ, Van't Hoff W. The use of an intact molecule parathyroid hormone assay in disorders of calcium metabolism. Annals of clinical biochemistry 1988. link 25 Diamond TH, Kawalsky DL, van der Merwe TL, Myburgh DP. Hypercalcaemia due to parathyroid adenoma and hypertrophic cardiomyopathy. A case report. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 1987. link 26 Parham GP, Orr JW. Hyperparathyroidism secondary to parathyroid carcinoma in pregnancy. A case report. The Journal of reproductive medicine 1987. link 27 Brown RC, Aston JP, Weeks I, Woodhead JS. Circulating intact parathyroid hormone measured by a two-site immunochemiluminometric assay. The Journal of clinical endocrinology and metabolism 1987. link 28 Fabrin B, Eldon K. Pregnancy complicated by concurrent hyperparathyroidism and pancreatitis. Acta obstetricia et gynecologica Scandinavica 1986. link 29 Hackeng WH, Lips P, Netelenbos JC, Lips CJ. Clinical implications of estimation of intact parathyroid hormone (PTH) versus total immunoreactive PTH in normal subjects and hyperparathyroid patients. The Journal of clinical endocrinology and metabolism 1986. link 30 Saxe AW, Baier R, Tesluk H, Toreson W. The role of the pathologist in the surgical treatment of hyperparathyroidism. Surgery, gynecology & obstetrics 1985. link 31 Setoguti T, Inoue Y, Shin M. Effects of short-term treatment with calcium on the parathyroid gland of the rat, under particular consideration of the alteration of storage granules. Cell and tissue research 1985. link 32 Tsuchiya T, Shiomura Y, Suzuki K, Nagai H, Tamate H. Immunocytochemical study on the C cells in pig thyroid glands. Acta anatomica 1984. link 33 Lasmoles F, Desplan C, Segond N, Jullienne A, Treilhou-Lahille F, Milhaud G et al.. Cell free translation of chicken calcitonin messenger RNA. FEBS letters 1983. link81124-7) 34 Zanelli JM, Rafferty B, Apostolou B, Court G, Hurn BA. Large scale screening programme for selection of antisera for radioimmunoassay of human parathyroid hormone. Journal of immunoassay 1983. link 35 Perry HM, Chappel JC, Clevinger BL, Haddad JG, Teitelbaum SL. Monoclonal antibody with high affinity for 1,25-dihydroxycholecalciferol. Biochemical and biophysical research communications 1983. link91482-1) 36 Marx SJ, Attie MF, Spiegel AM, Levine MA, Lasker RD, Fox M. An association between neonatal severe primary hyperparathyroidism and familial hypocalciuric hypercalcemia in three kindreds. The New England journal of medicine 1982. link 37 Ordonez NG, Ibanez ML, Mackay B, Samaan NA, Hickey RC. Functioning oxyphil cell adenomas of parathyroid gland: immunoperoxidase evidence of hormonal activity in oxyphil cells. American journal of clinical pathology 1982. link 38 Margolin D, Hammerstad J, Orwoll E, McClung M, Calhoun D. Intracranial calcification in hyperparathyroidism associated with gait apraxia and parkinsonism. Neurology 1980. link 39 Sandler LM, Moncrieff MW. Familial hyperparathyroidism. Archives of disease in childhood 1980. link 40 Petrohelos M, Ticoulis D, Diamantacos P. Band keratopathy with bilateral deafness as a presenting sign of hyperparathyroidism. The British journal of ophthalmology 1977. link 41 LiVolsi VA, Feind CR. Parathyroid adenoma and nonmedullary thyroid carcinoma. Cancer 1976. link38:3<1391::aid-cncr2820380344>3.0.co;2-c) 42 Drago JR, Rohner TJ, Sanford EJ, Santen RE. Diagnosis of hyperparathyroidism. Urology 1976. link90551-3) 43 O'Riordan JL, Aurbach GD, Potts JT. Immunological reactivity of purified human parathyroid hormone. Proceedings of the National Academy of Sciences of the United States of America 1969. link

Hyperparathyroidism