[Target range of PTH in ESRD patients].

The normal bone turnover is important for ESRD patients in not only skeletal problem but also patients QOL and survival. The abnormal bone turnover often induces the renal osteodystrophy and ectopic calcification. The major regulative factor on bone turnover is PTH. We propose here the target zone of PTH in ESRD patients with skeletal resistance for PTH. We recommended the intact-PTH 100 - 150 pg/mL for normal Ca/Pi/bone metabolism. This range of intact-PTH is equivalent to C-PTH 4.0 - 6.2 ng/mL, HS-PTH 10.0 - 16.0 ng/mL, and whole-PTH 80 - 110 pg/mL. The maintenance of normacalcemia and normophosphatemia are important for the arrival into the target zone of PTH using active vitamin D.