Journal List > J Korean Acad Nurs > v.42(5) > 1002854

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Kim and Jeong: Optimal Time Interval for Position Change for ICU Patients using Foam Mattress Against Pressure Ulcer Risk
Original Article
Journal of Korean Academy of Nursing

Journal of Korean Academy of Nursing 2012; 42(5): 730-737.

Published online: 31 October 2012

DOI: https://doi.org/10.4040/jkan.2012.42.5.730

Optimal Time Interval for Position Change for ICU Patients using Foam Mattress Against Pressure Ulcer Risk

Hyean Jeong Kim1, In Sook Jeong2

1Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.

2College of Nursing, Pusan National University, Yangsan, Republic of Korea.

Address reprint requests to: Jeong, Ihn Sook. College of Nursing, Pusan National University, Beomoe-ri, Mulgeum-eup, Yangsan 626-870, Korea. Tel: +82-51-510-8342, Fax: +82-51-510-8308, jeongis@pusan.ac.kr

Received 14 February 2012       Accepted 27 September 2012

© 2012 Korean Society of Nursing Science

Abstract

Purpose

This study was done to identify the time interval to pressure ulcer and to determine the optimal time interval for position change depending on pressure ulcer risk in patients using foam mattress in intensive care units.

Methods

The Braden scale score, occurrence of pressure ulcers and position change intervals were assessed with 56 patients admitted to an intensive care unit from April to November, 2011. The time to pressure ulcer occurrence by Braden scale risk group was analyzed with Kaplan-Meier survival analysis and log rank test. Then, the optimal time interval for position change was calculated with ROC curve.

Results

The median time to pressure ulcer occurrence was 5 hours at mild or moderate risk, 3.5 hours at high risk and 3 hours at very high risk on the Braden scale. The optimal time interval for position change was 3 hours at mild and moderate risk, 2 hours at high and very high risk of Braden scale.

Conclusion

When foam mattresses are used a slight extension of the time interval for position change can be considered for the patients with mild or moderate pressure ulcer risk but not for patients with high or very high pressure ulcer risk by Braden scale.

Keywords: Pressure ulcer, Patient positioning, Risk assessment, Viscoelastic substances

Figures and Tables

Figure 1
Kaplan-Meier survival curve for pressure ulcer occurrence by pressure ulcer risk group.
jkan-42-730-g001
Table 1
Characteristics of Study Participants (N=56)
jkan-42-730-i001

*Mann Whitney U test; †χ2 for trend test; IQR=Interquartile range.

Table 2
Cumulative Survival Function by Pressure Ulcer Risk Group
jkan-42-730-i002

SE=Standard error.

Table 3
Median Time to Pressure Ulcer Occurrence by Pressure Ulcer Risk Group
jkan-42-730-i003

*log-rank test.

Table 4
Sensitivity and Specificity at a Certain Cut-off Points by Pressure Ulcer Risk Group
jkan-42-730-i004

PU=Pressure ulcer; AUC=Area under the ROC curve.

Notes

This article is a condensed form of the first author's master's thesis from Pusan National University.

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