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Hypothermia during umbilical catheterization in preterm infants
Gerdina H Dubbink-Verheij1, Tjarda A J W M van Westerop1, Enrico Lopriore1
1Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, the Netherlands.
Summary
Umbilical catheterization (UC) in preterm infants often leads to hypothermia, increasing its incidence. Delaying UC until normal temperatures are achieved may be beneficial for infant well-being.
Area of Science:
- Neonatalogy
- Pediatric critical care
- Thermoregulation
Background:
- Preterm infants are highly susceptible to temperature instability.
- Umbilical catheterization (UC) is a common neonatal procedure.
- The impact of UC on thermoregulation in preterm infants requires further elucidation.
Purpose of the Study:
- To investigate the effects of umbilical catheterization (UC) on skin temperature and cardiorespiratory status in preterm infants.
- To determine the incidence and progression of hypothermia during UC.
- To assess the relationship between UC duration and hypothermia.
Main Methods:
- Prospective observational study involving infants with gestational age less than 32 weeks.
- Continuous monitoring of skin temperature and cardiorespiratory parameters during UC.
- Definition of hypothermia as a temperature below 36.5°C.
Main Results:
- Hypothermia was prevalent before UC (69%) and increased significantly during the procedure (89%).
- Mean skin temperature decreased during UC, with a subsequent slight rise.
- Heart rate increased temporarily during UC, with no significant change in supplemental oxygen requirements.
Conclusions:
- Hypothermia is common in preterm infants and is exacerbated by umbilical catheterization.
- The duration of UC was not associated with the development of hypothermia.
- Consideration should be given to postponing UC until normothermia is achieved in preterm infants.
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