Normocalcemic Hyperparathyroidism Management

Diagnosis and Evaluation

The American College of Nephrology recommends measuring serum calcium, PTH, and 25-OH vitamin D simultaneously for diagnosis and evaluation of normocalcemic hyperparathyroidism 4
Vitamin D deficiency should be screened and corrected to achieve 25-OH vitamin D levels >20 ng/ml, according to the National Kidney Foundation 1, 2
Dietary calcium intake should be assessed and ensured to be adequate according to age-related recommendations, as suggested by the National Kidney Foundation 1, 2

Active vitamin D should be given without phosphate supplements if careful follow-up is guaranteed, and switching to burosumab therapy is recommended when possible for optimal management of morbidity and mortality outcomes, as recommended by the Endocrine Society 1, 2, 3
For secondary hyperparathyroidism, vitamin D deficiency should be corrected and adequate dietary calcium intake should be ensured, according to the National Kidney Foundation 1, 2
Calcimimetics (cinacalcet) may be considered for severe hyperparathyroidism despite normocalcemia, but should be used with caution due to potential adverse effects, as recommended by the National Kidney Foundation 1, 2, 3

Bilateral neck exploration is the standard approach when preoperative localization studies are negative, as suggested by the American College of Surgeons 5
Parathyroidectomy should be considered for persistent hypercalcemic hyperparathyroidism, as recommended by the Endocrine Society 1, 2, 3

Regular monitoring of serum calcium, phosphorus, PTH, and vitamin D levels is recommended, as suggested by the American College of Nephrology 4
Advanced imaging techniques may be necessary when standard imaging is negative, as recommended by the American College of Radiology 5