Standardised thermal care for very preterm newborns[
2026-06-24
Very preterm infant wrapped in towels as part of thermal management after birth. © Janko Ferlic / Unsplash
Very preterm newborns can lose heat quickly after birth, yet hospitals do not always use the same thermal care practices. Consistent approaches to thermal management matter because both low and high body temperatures can affect newborn outcomes. This multicentre randomised clinical trial from Italy examined whether drying very preterm infants before plastic wrapping could improve temperature control after birth. The study involved 354 very preterm infants cared for in 21 tertiary hospitals. The findings showed that drying before wrapping did not improve normothermia (body temperature within the recommended range) at admission to the neonatal intensive care unit (NICU). They also do not support changing current standardised care practices.
Very preterm infants face a high risk of heat loss immediately after birth because their bodies lose heat rapidly through evaporation. Current international guidelines recommend placing these infants directly into plastic wrapping without drying first. However, many newborns still arrive at the neonatal intensive care unit with temperatures outside the recommended range. This ongoing challenge highlights the need for standardised newborn care that supports consistent thermal management across settings. It also shows why thermal care in very preterm infants remains an important focus in neonatal care.
Why standardised thermal care in very preterm infants matters
The researchers compared two approaches to thermal care in very preterm infants. One group received drying with a prewarmed towel before plastic wrapping, while the other group received immediate wrapping without drying. All participating hospitals followed current neonatal resuscitation guidance, including warm delivery rooms, radiant warmers, caps, and transport incubators. The study aimed to determine whether adding drying to the existing thermal care bundle could improve normothermia at NICU admission. Results showed similar rates of normothermia in both groups.
Around half of all infants remained outside the normal temperature range. The authors suggested that drying may delay immediate wrapping or may not further reduce evaporative heat loss compared with direct plastic wrapping. This could explain the similar rates of normothermia in both groups.
The study also examined other health outcomes linked to thermal care quality. Rates of hypothermia, respiratory distress syndrome, bronchopulmonary dysplasia, and late-onset sepsis were similar between the two groups. However, mortality was higher among infants who were dried before wrapping, especially among the most extremely preterm infants. The researchers could not identify a direct physiological explanation for this difference. They noted that many deaths were linked to the infants’ severe clinical conditions.
What thermal care in very preterm infants means for parents and health professionals
The findings support current guidance that recommends immediate plastic wrapping without drying for very preterm newborns. They also show the importance of consistent thermal care bundles that combine several evidence-based interventions. Although most hospitals consistently used plastic wrapping and radiant warmers, they used heated humidified gases and warming mattresses less often. Guidelines recommend both as part of thermal care. Wider use of these approaches may help improve temperature control after birth.
Parents and healthcare professionals can discuss with their care teams how thermal management practices are applied during stabilisation after birth. Further research may help refine standardised newborn care strategies and improve temperature control for very preterm infants in neonatal settings.
Paper available at: JAMA Network Open article
Full list of authors: Cavallin, F; Doglioni, N; Risso, F M; Monari, C B; Aversa, S; Troiani, S; Battajon, N; Moschella, S; Villani, P E; Vedovato, S; Maiorca, D; Frezza, S; Lista, G; Laforgia, N; Mondello, I; Sibona, I; Staffler, A; Pratesi, S; Paviotti, G; De Bernardo, G; Lama, S; Miselli, F; Bua, J; Gitto, E; Pesce, S; Baraldi, E; Trevisanuto, D
DOI: 10.1001/jamanetworkopen.2025.56902
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