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Table 3 Time required for the first dose in the recovery/consumption of fentanyl in the recovery

From: Intraoperative infusion of lidocaine 2% reduces postoperative fentanyl requirements for pain control in renal transplantation surgery

Type of patients No. of patients Time in min: mean ± SD p value
Lidocaine group 25 45.88 min ± 19.404 min < 0.001
Fentanyl group 25 14.64 min ± 4.281 min  
Type of patients No. of patients Fentanyl consumption in microgram: mean ± SD p value
Lidocaine group 25 43.87 μg ± 26 μg < 0.001
Fentanyl group 25 116.96 μg ± 37.92 μg  
  1. Analgesic requirements: the mean time for the request of the first dose of analgesic was significantly longer in lidocaine group than in fentanyl group (45.88 ± 19.404 vs 14.64 ± 4.281 with p value of < 0.001). There was a statistically significant difference between the 2 groups with p value < 0.001, increased fentanyl consumption in the recovery for postoperative analgesia in the fentanyl group (116.96 μg ± 37.92 μg) more than the consumption in the lidocaine group (26 μg ± 43.87 μg)
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