An eHealth System for Pressure Ulcer Risk Assessment Based on Accelerometer and Pressure Data

Dieter Hayn,Jürgen Morak,Viktoria Willner,Günter Schreier,Markus Falgenhauer,Walter Liebhart,Karin Wipfler

doi:10.1155/2015/106537

Dieter Hayn, Jürgen Morak + Show 5 more

Open Access

https://doi.org/10.1155/2015/106537

Copy DOI

Abstract

Pressure ulcers are a common skin disease which is associated with pain, reduced autonomy, social isolation, and reduced quality of life. There are several systems for monitoring of pressure ulcer-related risk factors on the market, but up to now no satisfactory solution is available, especially for people with medium pressure ulcer risk. We present a novel pressure ulcer risk assessment and prevention system, which combines the advantages of accelerometer and pressure sensors for monitoring pressure ulcer risk factors. Sensors are used for detection of repositionings of the person lying on the mattress. Sensor data are sent to a tablet where they are analysed and presented graphically. The system was evaluated in a long-term test at the homes of people of the target group. Results indicate that the system is able to detect movements of persons while lying in bed. Weak correlation in between mobility and Braden pressure ulcer risk was found (correlation factor = 0.31). From our data, long-term trends could be visualized as well as 24 h mobility profiles. Such graphical illustrations might be helpful for caregivers in order to optimize care of people with medium to high pressure ulcer risk.

Highlights

Pressure Ulcers: General Description and Risk Factors
Pressure ulcers are a common skin disease which is associated with pain, reduced autonomy, social isolation, and reduced quality of life
We present a novel pressure ulcer risk assessment and prevention system, which combines the advantages of accelerometer and pressure sensors for monitoring pressure ulcer risk factors

Summary

Introduction

Pressure Ulcers: General Description and Risk Factors. Pressure ulcers are a skin disease which is caused by mechanically induced ischemia. In Germany in 2005 12.5% of all patients within clinics and 6.6% in nursing homes have been affected by pressure ulcers. A recent review of pressure ulcer prevalence and incidence across Scandinavia, Iceland, and Ireland showed prevalence rates of 8.9 to 25%. The total risk of an individual person to develop a pressure ulcer can be estimated by different scales (e.g., Braden scale), which are based on several risk factors, such as low activity, reduced mobility, temperature and skin moisture (e.g., due to incontinence), nutrition and drinking behaviour, and additional diseases such as diabetes mellitus and reduced blood pressure [3]. More details concerning pressure ulcer prevention and treatment can be found in recent guidelines [5]

Methods

Results

Conclusion