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  • Title: Epidural nalbuphine for post cesarean epidural morphine induced pruritus.
    Author: Pongraweewan O, Santawata U, Weerasarn L, Manuwong S, Swasti-xuto O.
    Journal: J Med Assoc Thai; 2009 Jun; 92(6):782-6. PubMed ID: 19530584.
    Abstract:
    OBJECTIVE: The aim of the present study was to test the efficacy of epidural nalbuphine 5 mg for prevention of morphine-induced pruritus. MATERIAL AND METHOD: Parturients, ASA I-II scheduled for elective cesarean section under epidural anesthesia were randomized into 3 groups: the placebo group, N-5 group, and N-10 group received 4 ml epidural solution containing morphine 4 mg plus either saline, nalbuphine 5 mg, and nalbuphine 10 mg respectively. Pain score at rest and on movement, incidence and severity of pruritus, sedation score, and pethidine consumption were recorded for 24 hours. RESULTS: The 182 parturients were randomized into 60 in the placebo group, 61 in the N-5 group, and 61 in the N-10 group. The severity of pruritus was significantly lower at 3, 6, 9 and 12 h postpartum in the N-5 group and the N-10 group had a lower degree of pruritus at 3 and 6 h postpartum compared to placebo. The VAS pain scores at rest and on movement were significantly higher in the N-10 group at 3, 6, 9, 12 and 18 h postpartum compared to the placebo and significantly higher at 3 h, 6 h postpartum compared to the N-5 group (p < 0.05). Patient's satisfactions were high in all groups without any significant difference between groups. CONCLUSION: Epidural nalbuphine 5 mg reduced severity of morphine induced pruritus for 12 h with statistically significant different advantages over epidural nalbuphine 10 mg without anti-analgesic effect. However the difference is too small to convey into clinical significant advantage.
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