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Updated: Jun 24, 2026

Electrophysiological Measurements and Analysis of Nociception in Human Infants
Published on: December 20, 2011
Improving the treatment of infant pain
Fiona Moultrie1, Rebeccah Slater, Caroline Hartley
1Department of Paediatrics, University of Oxford, Oxford, UK.
Insights
Managing pain in newborns undergoing medical procedures is challenging. New objective measures of infant pain are emerging, aiding clinical trials for better analgesic treatments.
Area of Science:
- Neonatal care
- Neuroscience
- Pharmacology
Background:
- Pain management in neonatal intensive care units (NICUs) is complex.
- Infants undergoing invasive procedures face risks during critical neurodevelopment.
- Inconsistent and insufficient analgesic provision stems from limited evidence on drug efficacy and safety.
Purpose of the Study:
- To review advances in measuring infant pain.
- To discuss clinical trials evaluating pharmacological analgesia in infants.
Main Methods:
- Review of recent advancements in objective infant pain measurement.
- Analysis of clinical trial data on analgesic efficacy and safety in neonates.
Main Results:
- Novel measures of noxious-evoked brain activity offer objective, quantitative outcomes for trials.
- These brain activity measures are sensitive to analgesic effects.
Conclusions:
- A multimodal approach is essential for identifying effective and safe infant analgesics.
- Well-designed clinical trials are crucial for improving pain management in neonates.
- Objective pain measures enhance the reliability of clinical trials for infant analgesia.
Purpose Of Review:
Pain management presents a major challenge in neonatal care. Newborn infants who require medical treatment can undergo frequent invasive procedures during a critical period of neurodevelopment. However, adequate analgesic provision is infrequently and inconsistently provided for acute noxious procedures because of limited and conflicting evidence regarding analgesic efficacy and safety of most commonly used pharmacological agents. Here, we review recent advances in the measurement of infant pain and discuss clinical trials that assess the efficacy of pharmacological analgesia in infants.
Recent Findings:
Recently developed measures of noxious-evoked brain activity are sensitive to analgesic modulation, providing an objective quantitative outcome measure that can be used in clinical trials of analgesics.
Summary:
Noxious stimulation evokes changes in activity across all levels of the infant nervous system, including reflex activity, altered brain activity and behaviour, and long-lasting changes in infant physiological stability. A multimodal approach is needed if we are to identify efficacious and well tolerated analgesic treatments. Well designed clinical trials are urgently required to improve analgesic provision in the infant population.
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