The development factor of deep vein thrombosis and the prevention care method in the critical care

本研究旨在明确重症监护环境中DVT的产生状况及影响因素，并验证腿部按摩和足浴的效果。健康的人被分为三组。两组用热毛巾裹住他们的小腿（足浴），一组浸有香薰油按摩，另一组没有；最后一组没有任何干预。他们被置于人工压力诱导的环境中。研究采用交叉设计。研究人员使用了两种设备来测量大脑代谢活动、自主神经活动和热效应，同时使用问卷来测量心理变化。在使用芳香热毛巾的受试者中，刺激嗅觉对神经活动和脑血流量有影响。此外，交感神经活动的减少和副交感神经活动的激活之间存在时间差。热量也慢慢地提高了温度。结果表明，对下肢外周循环进行芳香热治疗，可以减轻心理紧张和焦虑等压力。这种疗法可能在重症监护等领域的患者中有临床应用，以帮助预防深静脉血栓并帮助他们放松。

The purpose of this study is to clarify DVT generation status and the factor in the critical care settings, and verifying the effect of the leg massage and the foot-bath. The healthy people were classified into three groups. Two groups had heated towels wrapped around their lower legs (the foot-bath), one impregnated with aromatic oil massage and one without ; and the last group had no intervention. They were placed in an artificial stress-induced environment. Research was done by crossover design. Two kinds of equipment were used to measure brain metabolic activity, autonomic nerve activity, and thermal effects, whilst a questionnaire measured psychological changes. In the subjects using aromatic hot towels, there were effects on nervous activity and cerebral blood flow was increased by stimulating olfaction. Furthermore, a time difference was seen between the reduction of sympathetic nerve activity and the activation of parasympathetic activity. The heat also slow raised the temperature. The results indicated that the therapy with aromatic heat applied to the peripheral-circulation of the legs also reduced stress such as psychological tension and anxiety. This therapy may have a clinical application for patients in areas such as intensive care, to help prevention of the DVT and help them relax.