Pain and heart rate variability in neonates receiving dexmedetomidine.

J Perinatol

Neonatology, BCNatal, Barcelona Center for Maternal Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clinic, University of Barcelona, Barcelona, Spain.

Published: November 2024

Introduction: Neonates in a NICU experience pain. Based on the cardiovascular and nociceptive systems link, a Newborn Infant Parasympathetic Evaluation (NIPE) monitor was designed to assess pain. The use of α-agonists as analgesic-sedative drugs has increased in neonates. Given their effect on the autonomic system, we hypothesized that their use may alter NIPE's measurement capacity.

Methods: Data were prospectively collected. The included patients were evaluated using combined pain assessment systems.

Results: Sixteen newborns requiring sedoanalgesia underwent a total of 84 pain assessments. A good correlation was found between the NIPE-index and the COMFORT-neo and the crSO2 (cerebral regional oxygen saturation). No correlation was found in premature infants. By sedation group, the correlation remained in those receiving αagonist.

Conclusion: NIPE is a reliable tool for pain assessment. Further studies in premature infants are needed. The use of αagonist does not alter the measuring capacity of NIPE. The correlation between NIPE-index and crSO2 was also demonstrated.

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http://dx.doi.org/10.1038/s41372-024-02053-8DOI Listing

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