• Pediatr Crit Care Me · May 2019

    Nalbuphine Reduces Opioid-Associated Urinary Retention in Pediatric Patients.

    • Pamela D Reiter and Amy C Clevenger.
    • Department of Pharmacy and Division of Pediatric Critical Care, Children's Hospital Colorado, Aurora, CO.
    • Pediatr Crit Care Me. 2019 May 1; 20 (5): e240-e244.

    ObjectivesTo evaluate the effect of nalbuphine administration on urine output in critically ill children with opioid-associated urinary retention.DesignInstitutional review board approved, single center, retrospective medical chart review.SettingLarge medical-surgical PICU within a free-standing, tertiary care children's hospital.PatientsPatients admitted to the PICU between October 1, 2014, and February 29, 2016, who received IV nalbuphine after meeting criteria for opioid-associated oliguria (defined as urine output below 1 mL/kg/hr and received at least one dose of opioid therapy within the preceding 12 hr).InterventionsNone.Measurement And Main ResultsSeventeen patients who received 21 doses of nalbuphine were analyzed. The median age and weight of patients were 6 years (interquartile range, 3-11.5 yr) and 18 kg (interquartile range, 12-35 kg), respectively. Two distinct dosing strategies became evident, specifically 0.05 mg/kg (n = 11 doses) and 0.1 mg/kg (n = 10 doses). Urine output increased significantly from baseline (median, 0 mL/kg/hr; interquartile range, 0-0.53 mL/kg/hr) to 6 hours post nalbuphine administration (median, 1.48 mL/kg/hr; interquartile range, 0-2 mL/kg/hr; p = 0.0002). Patients who received 0.1 mg/kg/dose had a greater urine output response compared with those who received 0.05 mg/kg/dose. Five patients (29%) had a catheter inserted into their bladder after administration of nalbuphine. Pain scores (grouped 6 hr before and after nalbuphine administration and single pain scores documented immediately before and after nalbuphine administration) were unchanged.ConclusionsNalbuphine administration, at a dose of 0.1 mg/kg, improved urine output in a cohort of children with opioid-associated urinary retention. Pain control did not appear influenced by the provision of nalbuphine. Additional studies are needed to determine the influence of nalbuphine on urinary catheter insertion rates and catheter-associated urinary tract infections.

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