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Updated: Oct 13, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
[OPIATES USE IN VERY-LOW-BIRTH-WEIGHT INFANTS--CALL FOR CAUTION]
Insights
Opioid use in very-low-birth-weight (VLBW) infants is linked to increased short-term health issues, including longer breathing support and feeding times. Caution is advised, and alternative pain management strategies should be explored for VLBW neonates.
Area of Science:
- Neonatalogy
- Pharmacology
- Pediatric Critical Care
Context:
- Very-low-birth-weight (VLBW) infants often require sedation and pain management.
- Opioids are commonly used for these purposes in neonatal intensive care units.
Purpose:
- To investigate the short-term outcomes associated with opioid administration in VLBW infants.
- To identify potential morbidities linked to opioid use in this vulnerable population.
Summary:
- A retrospective study compared 45 VLBW infants treated with opioids (fentanyl or morphine) to 114 controls.
- Opioid-exposed VLBW infants had significantly lower gestational age and birth weight, longer durations of ventilatory support and oxygen supplementation, and higher rates of intraventricular hemorrhage, patent ductus arteriosus, infections, necrotizing enterocolitis, and bronchopulmonary dysplasia.
- Multivariate analysis indicated that opioid use was independently associated with patent ductus arteriosus and prolonged ventilatory support and enteral feeding times.
Impact:
- Findings suggest a potential association between opioid use and adverse short-term outcomes in VLBW infants.
- Highlights the need for cautious opioid administration and exploration of alternative sedation and analgesia methods in neonates.
- Underscores the necessity for further investigation through randomized controlled trials to confirm these associations.
Background:
Very-low-birth-weight (VLBW) infants are occasionally treated with opiates for sedation and pain relief.
Objective:
To study the short term outcomes of VLBW infants treated with opiates.
Methods:
We conducted a retrospective study of all VLBW infants born during the period 2006-2010; 45 were treated with opiates (41 fentanyl continuous IV drip and 4 IV morphine prn); 114 served as controls.
Results:
In the univariate analysis, VLBW infants treated by opiates had significantly lower Gestational Age (GA) (28.3 ± 2.4 vs. 30.3 ± 2.1 weeks) and BW (1012 ± 299 vs. 1204 ± 219 grams] and required longer periods of ventilatory support (30.3 ± 21.0 vs. 7.7 ± 12.0 days) and oxygen supplementation (40.4 ± 40.3 vs. 7.7 ± 17.3 days). They had significantly more intraventricular hemorrhage (IVH), patent ductus arteriosus (PDA), late onset infections, necrotizing enterocolitis (NEC and bronchopulmonary dysplasia (BPD). Time to reach full enteral (32.5 ± 22.1 vs. 15.6 ± 6.1 days) and full oral (64.6 ± 25.0 vs. 42.0 ± 20.7 days) feedings and length of stay (89.6 ± 37.1 vs. 53.7 ± 20.8 days) were significantly longer. In multivariate analysis, after controlling for GA and BW, opiates remained significantly associated only with PDA and longer ventilatory support and time to full enteral feeding.
Conclusion:
The use of opiates in VLBW infants may be associated with short term morbidities. Thus, opiates should be used with caution in this age group, and alternative approaches for sedation or pain relief should be considered. Randomized controlled studies are warranted to support our findings.
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