Rothenberger Jens, Krauss Sabrina, Held Manuel, Bender Dominik, Schaller Hans-Eberhard, Rahmanian-Schwarz Afshin, Constantinescu Mihai Adrian, Jaminet Patrick
Department of Plastic, Reconstructive, Hand and Burn Surgery, BG-Trauma Center, Eberhard Karls University Tuebingen, Germany; Department of Plastic, Reconstructive and Hand Surgery, University Hospital, University of Berne, Inselspital, Switzerland.
Department of Plastic, Reconstructive, Hand and Burn Surgery, BG-Trauma Center, Eberhard Karls University Tuebingen, Germany.
J Tissue Viability. 2014 Nov;23(4):129-36. doi: 10.1016/j.jtv.2014.05.001. Epub 2014 Jun 6.
Pressure ulcers are associated with severe impairment for the patients and high economic load. With this study we wanted to gain more insight to the skin perfusion dynamics due to external loading. Furthermore, we evaluated the effect of different types of pressure relief mattresses.
A total of 25 healthy volunteers were enrolled in the study. Perfusion dynamics of the sacral and the heel area were assessed using the O2C-device, which combines a laser light, to determine blood flow, and white light to determine the relative amount of hemoglobin. Three mattresses were evaluated compared to a hard surface: a standard hospital foam mattress bed, a visco-elastic foam mattress, and an air-fluidized bed.
In the heel area, only the air-fluidized bed was able to maintain the blood circulation (mean blood flow of 13.6 ± 6 versus 3.9 ± 3 AU and mean relative amount of hemoglobin of 44.0 ± 14 versus 32.7 ± 12 AU.) In the sacral area, all used mattresses revealed an improvement of blood circulation compared to the hard surface.
The results of this study form a more precise pattern of perfusion changes due to external loading on various pressure relief mattresses. This knowledge may reduce the incidence of pressure ulcers and may be an influencing factor in pressure relief mattress selection.
压疮会给患者带来严重损害并造成高昂的经济负担。通过本研究，我们希望更深入了解外部负荷作用下的皮肤灌注动力学。此外，我们评估了不同类型减压床垫的效果。
共有25名健康志愿者参与本研究。使用O2C设备评估骶部和足跟区域的灌注动力学，该设备结合了用于测定血流的激光和用于测定血红蛋白相对含量的白光。与硬表面相比，评估了三种床垫：标准医院泡沫床垫、粘弹性泡沫床垫和气垫床。
在足跟区域，只有气垫床能够维持血液循环（平均血流为13.6±6与3.9±3 AU，平均血红蛋白相对含量为44.0±14与32.7±12 AU）。在骶部区域，与硬表面相比，所有使用的床垫均显示血液循环有所改善。
本研究结果形成了各种减压床垫上外部负荷导致的灌注变化更精确模式。这一知识可能会降低压疮的发生率，并且可能是减压床垫选择中的一个影响因素。
