Development of the equation for position change interval to prevent the pressure ulcer using the animal model with weak tissue tolerance

压力性溃疡是皮肤和/或下层组织中的组织破裂的局部区域。预防措施之一是至少每2小时重新定位一次。研究人员使用有限元模型和营养不良的动物模型研究了重新定位的时间间隔。结果表明，营养不良延缓创面愈合，以深部组织损伤为主。对于组织耐受性差的高危人群，其体位变化间隔的计算公式有待进一步研究。

Pressure ulcers are localized areas of tissue breakdown in skin and/or underlying tissues. One of the preventative cares is repositioning at least every 2 hours. Researchers investigated the interval for the repositioning using the finite-element model and the animal model with malnutrition. Based on the results, malnutrition delayed the wound healing and deep tissue damage was predominant. Further study is needed to develop the equation for position change interval for the at risk people with weak tissue tolerance.