• Jinzhu Liu and Zhaoyu Cheng.
• Department of Anesthesiology, Tianjin Children's Hospital, Clinical Pediatric College of Tianjin Medical University, Tianjin 300134, China.
• Zhonghua Yi Xue Za Zhi. 2016 Mar 15; 96 (10): 807-11.

ObjectiveTo compare the effectiveness of neostigmine induced reversal of rocuronium in neonates, infants, young children and children.MethodsOne hundred and sixty ASA I or II pediatric patients undergoings elective surgical procedures under total intravenous anesthesia were enrolled during July 2014 to April 2015 in Tianjin Children's Hospital. The patients were divided into four groups according to ages: neonate group, infant group, young children group and children group.Then control subgroup and neostigmine reversal subgroup including twenty patients were randomly selected from every different age groups by the method of random number table. After induction of anesthesia, 0.6 mg/kg rocuronium was administered, and 0.2 mg/kg maintenance doses given as required during period of operation. Neuromuscular block was monitored using acceleromyographic train of four (TOF). When T1/control returned to 15%, 0.03 mg/kg neostigmine and 0.01 mg/kg atropine were given to patients of reversal subgroups, and saline 0.1 ml/kg was given to patients of control subgroups. The recovery time of T25, T75, TR0.7, recovery index, blood pressure, heart rate and adverse reactions were observed and recorded.ResultsIn control subgroups, the recovery time of T75 for neonates, infants, young children and children were (27.10±8.72), (16.70±6.35), (13.05±1.96), (14.40±3.08) min, respectively (F=25.052, P<0.01). The recovery time of TR0.7 were (27.75±8.56), (18.45±5.62), (14.95±2.64), (15.70±3.36) min, respectively (F=22.496, P<0.01). The recovery index were (20.75±7.09), (12.40±5.04), (10.01±2.00), (10.55±2.82) min, respectively (F=22.725, P<0.01). There were no significant difference for the every recovery time and recovery index between infants, young children and children (all P>0.05). But the recovery time of T75, TR0.7 and recovery index in neonate group were longer than other age groups (all P<0.01). In reversal subgroups , the recovery time of T75 for neonates, infants, young children and children were (14.05±3.54), (8.08±3.08), (6.53±0.98), (7.10±1.54) min, respectively (F=37.947, P<0.01). The recovery time of TR0.7 were (14.95±3.19), (9.32±3.44), (7.45±1.40), (8.12±1.67) min, respectively (F=34.744, P<0.01). The recovery index were (11.05±3.26), (5.96±2.46), (4.99±0.95), (5.22±1.39) min, respectively (F=33.542, P<0.01). The recovery time of T75, TR0.7 and recovery index were delayed in neonates compared with other age groups (all P<0.01). Haemodynamics were stable in all groups before or after giving antagonist, and no significant adverse reactions were observed.ConclusionsThe spontaneous recovery time after administrating rocuronium are comparable in infant, young children and children. There are obviously reversal effects in all of age groups when neostigmine is given to antagonize rocuronium. Either spontaneous recovery time or reversal recovery time of neostigmine to rocuronium is longer for neonates than other age's children.

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