Cryopreservation of Parathyroid Glands

Table 2

Definitions of parathyroid graft functionality.

Fully functional	Asymptomatic nonrenal patients
	– Off calcium and vitamin D supplementation
	– Eucalcemic with normal PTH levels and/or
	grafted-to-nongrafted arm, PTH ratio >1.5 [11]
	Renal patients
	– PTH levels of 51 to 300 pg/mL with normal or decreased calcium levels [18]
Partially functional	Symptomatic nonrenal patients
	– On calcium supplementation, with or without vitamin D supplementation
	– Hypocalcemic with normal PTH levels and/or grafted-to-nongrafted arm, PTH ratio >1.5 [11]
	Renal patients
	– PTH levels of 21 to 50 pg/mL with normal or decreased calcium levels [18]
Nonfunctional	Symptomatic nonrenal patients
	– On calcium supplementation, with or without vitamin D supplementation
	– Hypocalcemic with low PTH levels and/or grafted-to-nongrafted arm, PTH ratio <1.5 [11]
	Renal Patients
	– PTH levels <20 pg/mL with normal or decreased calcium levels [18]

PTH: parathyroid hormone.