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http://dx.doi.org/10.4094/chnr.2018.24.3.345

Hydration and pH of the Stratum Corneum in High-risk Newborns in the First 2 Weeks of Life  

Ahn, Young Mee (Department of Nursing, Inha University)
Sohn, Min (Department of Nursing, Inha University)
Lee, Sangmi (Department of Nursing, Dongyang University)
Publication Information
Child Health Nursing Research / v.24, no.3, 2018 , pp. 345-352 More about this Journal
Abstract
Purpose: The study was conducted to measure stratum corneum hydration (SCH) and pH (SCP) in high-risk newborns in the early postnatal period and to explore the features related to patterns of change in those parameters. Methods: SCH and SCP were measured on the dorsal hand in 99 hospitalized newborns during the first 14 days of life and the results were analyzed using a general linear model. Results: The mean hydration was 42.9% on day 1, which decreased to 34.6% by 2 weeks (F=15.61, p=<.001). An association was observed between SCH and prematurity (F=21.12, p<.001), as well as for their interaction (F=8.11, p<.001). The mean SCP was $6.2{\pm}0.3$ on day 1, and decreased to $5.7{\pm}0.2$ (F=95.75, p<.001), with no association with prematurity. After adjusting for birth weight, SCH was higher in newborns with vaginal delivery (F=9.07, p=.023) and who received phototherapy (F=11.81, p=.011). For SCP, only delivery type had a significant influence (F=6.40, p=.044). Conclusion: This study suggests that SCH is typically in the 30% range during the early postnatal period, and that an acid mantle on the SC surface is very unlikely to form; these findings could be applied to the nursing process for promoting skin integrity in high-risk neonates.
Keywords
Newborns; Skin care; Organism hydration status; Acids; Neonatal intensive care units;
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