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Table 3 Comparison of serum stress response indicators before and after treatment between the two groups (\( \overline{\mathrm{x}} \) ± s)

From: Clinical outcomes and effect on intraoperative blood loss and postoperative pain of patients undergoing retroperitoneal laparoscopic partial nephrectomy for complex renal tumors

Group n WBC (× 109) Cortisol (μmol/L) CRP (mg/L)
Before After Before After Before After
RLPN group 24 5.53 ± 1.24 6.17 ± 1.18 0.47 ± 0.14 0.63 ± 0.14 7.62 ± 0.19 9.85 ± 2.14
OPN group 26 5.57 ± 1.29 7.24 ± 1.12 0.51 ± 0.16 0.89 ± 0.23 7.67 ± 0.15 12.37 ± 2.08
t   0.112 3.289 0.937 4.779 1.037 4.221
P   0.912 < 0.05 0.353 < 0.001 0.305 < 0.001