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Updated: Aug 10, 2026

Electrophysiological Measurements and Analysis of Nociception in Human Infants
Published on: December 20, 2011
Pain, opioid tolerance and sensitisation to nociception in the neonate
1Department of Population Health Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada. anna.taddio@sickkids.ca
Insights
Opioid analgesics manage newborn infant pain from procedures and conditions. Careful administration minimizes side effects, and untreated pain may cause lasting behavioral issues, suggesting opioids offer long-term benefits.
Area of Science:
- Neonatal care
- Pediatric pain management
- Pharmacology
Background:
- Pain is frequent in newborns.
- Opioid analgesics are increasingly used for neonatal pain.
- Opioid adverse effects include respiratory depression and hypotension.
Purpose of the Study:
- To review the use of opioid analgesics in neonates.
- To discuss minimizing adverse effects.
- To explore the long-term implications of pain and analgesia.
Main Methods:
- Literature review of studies on neonatal pain and opioid use.
- Analysis of adverse effect mitigation strategies.
- Examination of research on long-term pain behavioral outcomes.
Main Results:
- Opioids effectively manage neonatal pain from various sources.
- Specific administration techniques and monitoring reduce opioid risks.
- Untreated pain can lead to persistent negative behavioral changes in infants.
Conclusions:
- Opioid analgesics play a crucial role in managing neonatal pain.
- Risk management is essential for safe opioid use in infants.
- Addressing neonatal pain may prevent long-term behavioral consequences.
Abstract:
Pain is commonplace in newborn infants. Opioid analgesics have become increasingly used to reduce different types of pain in neonates, including pain from surgery, medical procedures and chronic conditions. Adverse effects of opioids include respiratory depression, hypotension and tolerance. These adverse effects can be minimised by utilising specific administration techniques and constant monitoring. Recent studies have demonstrated that untreated pain can have long-term effects on infant pain behaviours months beyond the events, thus, opioid analgesics may have a beneficial role that extends beyond the immediate painful event(s).
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