Groups (Mean ± SD) PLA2 serum Concentration (ng/ml) Paired t test
Before Induction of Anesthesia After 2 hour giving infusion Changes Signicifancy
Control (n=20) (18.90 ± 5.59)p (20.20 ± 5.27)p Increase  (1.3 )a p=0.483
Lidocaine (n=20) (19.00 ± 3.70)p (10.00 ± 1.75)q Decrease    (9.0)b p=0.000
Superscript shows not significant different with Mann Whitney (p>0.05) if different, show significant different with Mann Whitney (p<0.05).
Table 3: The comparison of PLA2 serum concentration between two groups.