( 2 ) Compared with before the analgesia , the white blood cell count ( WBC ) , neutrophil percentage ( N ) , platelet count ( PLT ) , aspartate transaminase ( AST ) , creatinine ( Cr ) , arterial partial pressure of carbon dioxide ( PaCO ( 2 ) ) , blood lactic acid , blood sugar , C-reactive protein ( CRP ) were markedly reduced after sufentanil analgesia ( WBC : 10.8 4.2 10 ( 9 ) / L vs. 14.2 11.510 ( 9 ) / L , F = 49.879 , P < 0.001 ; N : 0.806 0.104 vs. 0.815 0.128 , F = 5.768 , P = 0.017 ; PLT : 160.4 77.0 10 ( 9 ) / L vs. 166.1 89.010 ( 9 ) / L , F = 6.568 , P = 0.011 ; AST : 61.3 10.1 U/L vs. 90.9 26.9 U/L , F = 6.706 , P = 0.010 ; Cr : 86.7 71.8 mol/L vs. 119.6 56.0 mol/L , F = 30.303 , P < 0.001 ; PaCO ( 2 ) : 39.4 7.2 mmHg vs. 41.7 22.6 mmHg , F = 4.389 , P = 0.037 ; blood lactic acid : 1.9 1.2 mmol/L vs. 2.7 2.5 mmol/L , F = 4.883 , P = 0.028 ; blood sugar : 8.0 5.4 mmol/L vs. 9.7 7.6 mmol/L , F = 9.724 , P = 0.002 ; CRP : 64.8 20.7 mg/L vs. 114.0 55.9 mg/L , F = 4.883 , P = 0.028 ) .