Assessing pain in preterm infants in the neonatal intensive care unit: moving to a 'brain-oriented' approach

Area of Science:

• Neonatal care
• Pain research
• Developmental pediatrics

Background:

• Preterm infants in NICU settings face recurrent procedural and continuous pain.
• Cumulative early pain exposure can lead to lasting alterations in pain processing, stress responses, and overall development.
• Accurate pain assessment is crucial for effective treatment but is complicated by unique preterm infant responses compared to full-term infants.

Purpose of the Study:

• To highlight the challenges in accurately assessing pain in preterm neonates.
• To introduce novel cortical-level assessment techniques for neonatal pain.
• To discuss the potential of these new methods in validating existing pain assessment tools.

Main Methods:

• Review of existing uni- and multidimensional pain assessment tools for neonates.
• Introduction of near-infrared spectroscopy (NIRS) and electroencephalography (EEG) as cortical-level pain measurement techniques.
• Discussion on the validation of neonatal pain assessment tools using NIRS and EEG.

Main Results:

• Current neonatal pain assessment tools often lack comprehensive psychometric validation and may miss crucial developmental cues.
• NIRS and EEG offer objective, cortical-level insights into neonatal pain responses.
• These advanced techniques present opportunities to enhance the accuracy and reliability of neonatal pain assessment.

Conclusions:

• Accurate pain assessment in preterm infants is complex but vital for appropriate care.
• Near-infrared spectroscopy and EEG show promise for validating and improving neonatal pain assessment tools.
• Further research utilizing these cortical-level measures can lead to better pain management strategies for vulnerable preterm infants.