Table 3. Different available criteria for successful parathyroidectomy using IOPTH.

Institute	And/or	Minute	% drop	Compared to	PTH levels
Miami		10	≥50%	Pre-incision
				Pre-excision
Vienna		10	≥50%	Pre-incision
Rotterdam	Or	10	>70%		And PTH 100-200 ng/L
		10	>80%		And PTH >200 ng/L
Ann	And		50%	Baseline
Arbor		5 or 10			12-75 pg/mL
Wisconsin		5, 10, or 15	≥50%	Pre-incision
				T5 if higher

IOPTH, intraoperative parathyroid hormone; PTH, parathyroid hormone.