A 10-Year Experience in Intraoperative Parathyroid Hormone Measurements for Primary Hyperparathyroidism: A Prospective Study of 91 Previous Unexplored Patients

Table 2

Outcomes in 91 PHP patients.

Variable	Operative success	Operative failure
Total	85	6
Solitary adenoma	69	0
Double adenoma	4	2
MEN1	8	2
Carcinoma	3	1
Waiting for remedial surgery (MGD)	1	1
Biochemical
iCa, mean (range) mmol/L	1.64 (1.35–2.50)	1.68 (1.51–2.06)
tCa, mean (range) mg/dL	12.0 (10.5–19.3)	12.0 (10.6–13.4)
iPTH, mean (range) pg/dL	431.5 (80–2605)	332.0 (74–1155)
Intraoperative results
IOPTH mean decay (range)%	80.5 (34.3–96.0)	50.5 (32.4–84.1)
IOPTH true-positive, N° (%)	80 (87.9)	0
IOPTH true-negative, N°, (%)	3 (3.3)	4 (4.4)
IOPTH false-positive, N°, (%)	0	2 (2.2)
IOPTH false-negative, N°, (%)	2 (2.2)	0