Which Site is Better for Skin Sensor Temperature Probe in Newborns Under Open Care System for Prevention of Hypo – Hyperthermia

Abstract

Background: Choosing the right temperature probe location is important, especially in VLBW infants. We aimed to determine five points of the skin surface and compare them with the axillary temperature of potentially suitable locations as well as the best location for skin probe placement.

Methods: In a cross‑sectional study, 400 neonates with gestational age above 26 weeks were enrolled. The axillary temperature was measured using a mercury thermometer at 0 and 30 min. Then, the body temperature was measured using a surface probe on the five skin areas, including the thoracic area, epigastric region, RUQ area, hypogastric area, and left flanking area. Data recorded were compared with the axillary temperature at 0 and 30 min.

Results: Mean neonatal axillary temperatures at 0 and 30 min were 36.60 and 36.61, respectively. The mean temperature was recorded using skin probes at 0 and 30 min in the thoracic region (36.34 and 36.35) in the epigastric region (36.45 and 36.47), in the RUQ region (36.50 and 36.52), in the Flank region (36.26 and 36.20), and in the hypogastric region (36.24 and 36.26). The lowest mean difference recorded by surface probes with the temperature measured by the thermometer in the axillary region was related to the surface probe RUQ (mean difference: 0.1 and 0.09), which was not statistically significant.

Conclusions: RUQ area probe has the lowest difference with the temperature calculated using the thermometer in the axillary region and is the best place to put the skin probe for prevention of hypo/hyperthermia.