Fig. (2) Bar diagram depicting the mean of CHIPPS scale at 2, 4, 6, 12, 24 hours. Bar diagram depicting mean of CHIPPS scale at 2, 4, 6, 12, 24 hours. CHIPPS scale = Children’s and Infant’s Postoperative Pain Scale, L = Levobupivacaine, LF= Levobupivacaine with fentanyl.