Youngmee Ahn; Min Sohn; Sangmi Lee; Mijin Lee

doi:10.4040/jkan.2013.43.1.30

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Original Article
pH, Temperature, Hydration of the Stratum Corneum of the Dorsal Hand and the Cord Area, and Acid Mantle Formation during Early Days of life in High-risk Newborns: Youngmee Ahn, Min Sohn, Sangmi Lee, Mijin Lee; Journal of Korean Academy of Nursing 2013;43(1):30-38.
DOI: https://doi.org/10.4040/jkan.2013.43.1.30
Published online: February 28, 2013

Department of Nursing, College of Medicine, Inha University, Incheon, Korea.

Address reprint requests to: Ahn, Youngmee. Department of Nursing, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon, 402-751, Korea. Tel: +82-32-860-8207, Fax: +82-32-874-5880, aym@inha.ac.kr

• Received: June 20, 2012 • Accepted: September 16, 2012

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Abstract
NOTES
REFERENCES

Abstract

Purpose
The study was done to explore variations in physiologic parameters of the stratum corneum (SC) of the dorsal hand and cord area during early days of life in high-risk newborns.
Methods
In this longitudinal study, a total of 77 high-risk newborns were assessed for pH, temperature and hydration of the SC of the dorsal hand and the cord area on the 1^st, 2^nd, 3^rd, 5^th and 7^th days of life.
Results
Results showed that an acid mantle (AM) was formed in 57.1% for dorsal hand and 35.1% for cord area, implying significant delay regardless of decrease in pH (F=103.60, p<.001), and hydration (F=4.00, p=.003) across days in both areas. Peripheral hypothermia with low hydration level was also observed in both areas. There was a positive relation between hydration and temperature (.14<r<.27, p<.010), and negative relation between hydration and pH in both areas (-.23<r<-.15, p<.010). Antibiotics may play a positive role in AM formation.
Conclusion
High-risk newborns may experience delay in acid mantle formation on SC, hypothermia and decreases in hydration on peripheral sites during the first 7 days of life.
Keywords: Newborns; Skin; Umbilical cord; Hand; Acid

This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2010-0021971).

REFERENCES

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Figure 1

pH variation by preterm birth to 7 days of life for dorsal hand and cord area (Interaction: F=25.58, p<.001 at hand; F=52.84, p<.001 at cord area).

Table 1

pH, Temperature and Hydration Changes for Dorsal Hand and Cord Area during First 7 Days of Life (N=77)

Table 2

Correlation among pH, Temperature and Hydration and Age for Dorsal Hand and Cord Area (N=77)

BT=Body temperature; ET=Environmental temperature; EH=Environmental humidity.

Table 3

Frequency of Acid Mantle (AM) Groups for Dorsal Hand and Cord Area for first 7 Days of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group with no acid mantle formation.

Table 4

Factors relating to Acid Mantle Formation for Dorsal Hand and Cord Area at the 7th Day of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group without acid mantle formation.

^*Transient tachypnea of newborns, Nuchal cord, Meconium aspiration, Twin, Intrauterine growth retardation et al.; ^†Fisher's exact test; ^‡Intraventricular hemorrhage grade<=1 et al.; ^§n=57.

Figure & Data

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pH, Temperature, Hydration of the Stratum Corneum of the Dorsal Hand and the Cord Area, and Acid Mantle Formation during Early Days of life in High-risk Newborns

J Korean Acad Nurs. 2013;43(1):30-38. Published online February 28, 2013

DOI: https://doi.org/10.4040/jkan.2013.43.1.30

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pH, Temperature, Hydration of the Stratum Corneum of the Dorsal Hand and the Cord Area, and Acid Mantle Formation during Early Days of life in High-risk Newborns

Figure 1 pH variation by preterm birth to 7 days of life for dorsal hand and cord area (Interaction: F=25.58, p<.001 at hand; F=52.84, p<.001 at cord area).

Figure 1

pH, Temperature, Hydration of the Stratum Corneum of the Dorsal Hand and the Cord Area, and Acid Mantle Formation during Early Days of life in High-risk Newborns

Table 1

pH, Temperature and Hydration Changes for Dorsal Hand and Cord Area during First 7 Days of Life (N=77)

Table 2

Correlation among pH, Temperature and Hydration and Age for Dorsal Hand and Cord Area (N=77)

BT=Body temperature; ET=Environmental temperature; EH=Environmental humidity.

Table 3

Frequency of Acid Mantle (AM) Groups for Dorsal Hand and Cord Area for first 7 Days of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group with no acid mantle formation.

Table 4

Factors relating to Acid Mantle Formation for Dorsal Hand and Cord Area at the 7th Day of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group without acid mantle formation.

^*Transient tachypnea of newborns, Nuchal cord, Meconium aspiration, Twin, Intrauterine growth retardation et al.; ^†Fisher's exact test; ^‡Intraventricular hemorrhage grade<=1 et al.; ^§n=57.

Table 1 pH, Temperature and Hydration Changes for Dorsal Hand and Cord Area during First 7 Days of Life (N=77)

Table 2 Correlation among pH, Temperature and Hydration and Age for Dorsal Hand and Cord Area (N=77)

BT=Body temperature; ET=Environmental temperature; EH=Environmental humidity.

Table 3 Frequency of Acid Mantle (AM) Groups for Dorsal Hand and Cord Area for first 7 Days of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group with no acid mantle formation.

Table 4 Factors relating to Acid Mantle Formation for Dorsal Hand and Cord Area at the 7th Day of Life (N=77)

Group 1=Group with acid mantle formation; Group 2=Group without acid mantle formation.

^*Transient tachypnea of newborns, Nuchal cord, Meconium aspiration, Twin, Intrauterine growth retardation et al.; ^†Fisher's exact test; ^‡Intraventricular hemorrhage grade<=1 et al.; ^§n=57.