• M M Meyer and R J Berens.
• Air Force Institute of Technology, Wright-Patterson Air Force Base, Dayton, Ohio, USA. michael.meyer@59mdw.whmc.af.mil
• Pediatr Crit Care Me. 2001 Oct 1;2(4):329-33.

ObjectiveTo demonstrate the efficacy of a 10-day, single daily dose, enteral methadone weaning protocol for the prevention of opioid withdrawal symptoms in pediatric patients after prolonged fentanyl exposure.DesignProspective, observational study.SettingTwenty-four-bed medical-surgical intensive care unit within a 222-bed pediatric teaching hospital.PatientsTwenty-nine children, aged 1 day to 19.8 yrs, who received methadone to prevent opioid withdrawal after prolonged continuous fentanyl infusion exposure.InterventionsInstitution of a standardized methadone weaning protocol.Measurements And Main ResultsAll 29 patients had received a continuous fentanyl infusion; duration of exposure was 14.5 +/- 9.2 days, cumulative fentanyl dose was 1.93 +/- 1.53 mg/kg, and peak fentanyl infusion was 9.6 +/- 4.3 microg/kg per hr. Twenty-five (86%) of 29 patients successfully completed the methadone wean in 10 days. Withdrawal complications that required a weaning delay were seen in three patients, and one patient expired before completion. Sixteen patients were discharged to complete their weaning schedule at home without incident.ConclusionsOpioid withdrawal symptoms in pediatric intensive care unit patients after prolonged fentanyl exposure can be avoided by using an enteral, 10-day, single daily dose methadone weaning protocol.

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