Table 2.

Laboratory tests of group 1 and group 2 patients before and after RFA.

Laboratory tests	Group 1		Group 2(1st RFA)		Group 2(2nd RFA)
	Before RFA	After RFA(day 1)	Before RFA	After RFA(day 1)	Before RFA	After RFA(day 1)
PTH, pg/ml	1865.18 ± 828.93	145.72 ± 119.27	2256.64 ± 1021.72	1388.13 ± 890.15	1677.66 ± 1012.36	137.26 ± 107.12
Calcium, mmol/L	2.59 ± 0.17	1.79 ± 0.31	2.53 ± 0.19	2.22 ± 0.23*	2.31 ± 0.19	1.89 ± 0.26*
Phosphorus, mmol/L	2.08 ± 0.32	1.57 ± 0.44	2.10 ± 0.58	1.89 ± 0.57	1.70 ± 0.32	1.28 ± 0.56
ALP, U/L	488.03 ± 439.80	488.04 ± 447.87	612.89 ± 550.13	590.46 ± 556.55	662.39 ± 527.13	690.47 ± 528.03

P^*<0.05 for group 2 compared with group 1 after first RFA on day 1.

Normal ranges: PTH 11–62 pg/mL, Calcium 2.11–2.52 mmol/L and Phosphorous 0.85–1.51 mmol/L.