Effects of low-dose naloxone on opioid therapy in pediatric patients: a retrospective case-control study
C L S Cheung1, M van Dijk, J W Green
1Department of Pediatric Surgery, University Medical Center and Erasmus MC, Sophia Children's Hospital, Rotterdam, The Netherlands.
Insights
Low-dose naloxone infusions in critically ill children did not reduce opioid needs during infusion but tended to decrease them afterward. This approach did not increase sedation needs, suggesting potential for managing opioid tolerance.
Area of Science:
- Pediatric critical care medicine
- Pharmacology
- Pain management
Background:
- Opioid tolerance is a significant challenge in managing pain and sedation in critically ill children.
- Developing strategies to prevent opioid tolerance is crucial for optimizing patient care and reducing cumulative opioid exposure.
Purpose of the Study:
- To investigate the efficacy of low-dose naloxone infusions in preventing opioid tolerance in pediatric intensive care unit (PICU) patients.
- To assess the impact of naloxone on analgesia and sedation requirements during and after its administration.
Main Methods:
- A matched case-control study was conducted in a university children's hospital's PICU.
- Fourteen PICU patients receiving low-dose naloxone with opioid infusions were compared to 12 matched controls receiving opioid infusions.
- Opioid and sedative requirements were quantified using morphine- and midazolam-equivalent doses.
Main Results:
- While opioid doses did not differ at baseline or during naloxone infusion, the naloxone group showed a trend toward lower opioid requirements in the post-naloxone period.
- The naloxone group required more opioids during infusion but fewer afterward, with reduced sedation needs post-infusion.
- No significant differences were observed in pain scores, sedation scores, or opioid-related side effects between the groups.
Conclusions:
- Low-dose naloxone infusions did not reduce opioid requirements during the infusion but showed a trend toward reduction in the post-infusion period.
- Naloxone administration did not increase sedation requirements, indicating a potential role in managing opioid tolerance without compromising sedation levels.
- Further randomized clinical trials are warranted to confirm these findings and evaluate the long-term effects and safety of low-dose naloxone in pediatric ICU patients requiring prolonged opioid therapy.
Objective:
To develop novel therapies that prevent opioid tolerance in critically ill children we examined the effects of low-dose naloxone infusions on patients' needs for analgesia or sedation.
Design And Setting:
Matched case-control study in a pediatric intensive care unit at a university children's hospital.
Patients:
We compared 14 pediatric ICU patients receiving low-dose naloxone and opioid infusions with 12 matched controls receiving opioid infusions.
Measurements And Main Results:
Opioid analgesia and sedative requirements were assessed as morphine- and midazolam-equivalent doses, respectively. No differences were observed between groups in opioid doses at baseline or during naloxone, but in the postnaloxone period opioid doses tended to be lower in the naloxone group. Compared to baseline the naloxone group required more opioids during naloxone but fewer opioids after naloxone. Total sedative doses were comparable at baseline in both groups, with no differences in the postnaloxone period. The naloxone group required less sedation after naloxone but sedation doses were unchanged in controls. The two groups did not differ in pain scores, sedation scores, or opioid side effects.
Conclusions:
Naloxone did not reduce the need for opioid during the infusion period but tended to reduce opioid requirements in the postnaloxone period without additional need for sedation. Randomized clinical trials may examine the effects of low-dose naloxone on opioid tolerance and side effects in pediatric ICU patients requiring prolonged opioid analgesia.
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