Ostadabbas Sarah, Yousefi Rasoul, Nourani Mehrdad, Faezipour Miad, Tamil Lakshman, Pompeo Matthew Q
IEEE Trans Inf Technol Biomed. 2012 Nov;16(6):1265-73. doi: 10.1109/TITB.2012.2214443. Epub 2012 Aug 21.
Pressure ulcer is a critical problem for bed-ridden and wheelchair-bound patients, diabetics, and the elderly. Patients need to be regularly repositioned to prevent excessive pressure on a single area of body, which can lead to ulcers. Pressure ulcers are extremely costly to treat and may lead to several other health problems, including death. The current standard for prevention is to reposition at-risk patients every two hours. Even if it is done properly, a fixed schedule is not sufficient to prevent all ulcers. Moreover, it may result in nurses being overworked by turning some patients too frequently. In this paper, we present an algorithm for finding a nurse-effort optimal repositioning schedule that prevents pressure ulcer formation for a finite planning horizon. Our proposed algorithm uses data from a commercial pressure mat assembled on the beds surface and provides a sequence of next positions and the time of repositioning for each patient.
压疮对于卧床和依赖轮椅的患者、糖尿病患者以及老年人来说是一个关键问题。患者需要定期重新摆放体位，以防止身体单个部位承受过大压力，这可能导致溃疡。治疗压疮成本极高，还可能引发其他多种健康问题，包括死亡。当前的预防标准是每两小时为有风险的患者重新摆放体位。即便操作得当，固定的时间表也不足以预防所有溃疡。此外，这可能导致护士因过于频繁地翻动一些患者而过度劳累。在本文中，我们提出一种算法，用于找到护士工作量最优的重新摆放体位时间表，该时间表能在有限的规划期内预防压疮形成。我们提出的算法利用安装在床表面的商用压力垫的数据，为每位患者提供下一个体位序列以及重新摆放体位的时间。
