Duration of Observation Glutamate Level (pg/ml) P value
Pregabalin Group (n=26) Control Group (n=26)
Min-Max Median Min-Max Median
Before Surgery 2-114 23,5 8-95 39,5 p=0.093
1hr  After Surgery 1-92.8 22.6 10.8 -118.9 67.6  p=0.000*
Data are shown in minimal, maximal and mean value, deviation standard and probability were tested with Mann Whitney-U test, p<0.05 is significant. *P value<0.05.
Table 2: Glutamate level alteration between two groups.