Ek A C, Lewis D H, Zetterqvist H, Svensson P G
Scand J Rehabil Med. 1984;16(2):85-9.
The aim of this study was to measure skin blood flow in patients with pressure sore in a long-term care unit. For comparison, measurements were also carried out on in-patients at risk of developing pressure sores and on healthy individuals in the same age groups as the in-patients. Skin blood flow was measured in the morning, using a laser-Doppler flowmeter. Measurements were made over the lateral part of the hip and over the lateral part of the upper arm. Measurements were carried out first at ambient temperature. The flow was then followed as the local skin region was heated to 40 degrees C. The results indicate that in healthy individuals the heat stimulus increased skin blood flow over the lateral part of the hip more than in in-patients in the same age group. Individuals below the age of 60 have a greater response than those over the age of 60. This impairment in the ability of the older in-patients to increase skin blood flow in response to thermal stimulus may be a factor in the development of pressure sores.
本研究的目的是测量长期护理病房中压疮患者的皮肤血流量。为作比较，还对有发生压疮风险的住院患者以及与住院患者年龄相同的健康个体进行了测量。使用激光多普勒血流仪在早晨测量皮肤血流量。测量部位为髋部外侧和上臂外侧。首先在环境温度下进行测量。然后在将局部皮肤区域加热至40摄氏度时跟踪血流量。结果表明，在健康个体中，热刺激使髋部外侧的皮肤血流量增加幅度大于同年龄组的住院患者。60岁以下的个体比60岁以上的个体反应更大。老年住院患者对热刺激增加皮肤血流量的能力受损可能是压疮发生的一个因素。
