4.6 Article

Predicting the cut-off point for interface pressure in pressure injury according to the standard hospital mattress and polyurethane foam mattress as support surfaces

期刊

INTERNATIONAL WOUND JOURNAL
卷 19, 期 6, 页码 1509-1517

出版社

WILEY
DOI: 10.1111/iwj.13750

关键词

mattresses; nursing; pressure ulcer

资金

  1. Research Grant of the Korean Society of Nursing Science in 2018

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This study investigated the interface pressure (IP) of patients using different support surfaces (standard hospital mattress and polyurethane foam mattress), identified cut-off points for IP in patients with skin changes, and compared the pressure differences between the two mattress types. The results showed that the IP for a standard hospital mattress was significantly higher than that of a polyurethane foam mattress. Individualized interventions based on the cut-off points are recommended to prevent pressure injuries.
This study aimed to investigate the interface pressure (IP) of patients using a standard hospital mattress and polyurethane foam mattress as support surfaces and present cut-off points for IP in patients who exhibited skin changes. A total of 189 inpatients enrolled from six general wards and three intensive care units at a Korean University Hospital. Skin changes were classified, and peak IP at the sacral and occipital regions was measured using a pressure scanner. Differences in IPs according to mattress type were analysed using independent t-tests. The receiver operating characteristic curve was constructed to determine the cut-off point, and the area under the curve with a 95% confidence interval was obtained using the Stata 15.1.program. The IP for a standard hospital mattress was significantly higher than that of a polyurethane foam mattress. The cut-off points for IP at the sacral region were 52.90 and 30.15 mm Hg for a standard hospital mattress and polyurethane foam mattress, respectively. The cut-off point for IP at the occipital region was 36.40 mm Hg for a polyurethane foam mattress. Using IP measurements to prevent pressure injuries is important and employ individualised interventions based on the cut-off points for different support surfaces.

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