QUANTITATIVE ANALYSIS OF SKIN BLOOD FLOW IN ELDERLY FOR NURSING GUIDE LINE TO IMPROVE THEIR QUALITY OF LIFE

采用激光多普勒磁通仪（Periflux PF2, Perimed, Sweden）测量49例养老院老年人拇指背基底局部皮肤血流量，并通过计算软件MacLab ver进行分析。3、4采用FFT转换器进行频率检测。识别出四个分量的频带，每个分量的峰值频率分别在1Hz/sec、0.3Hz/sec、0.1Hz/sec和0.03Hz/sec左右。第一个似乎对应于脉冲的通量，下一个似乎对应于呼吸。根据血管舒缩神经元的调节，第三种似乎与基本波相对应。试图定量比较卧床老人（包括轮椅老人）与可自行活动老人的脉搏流量与休息流量的比例。验证了脉冲分量在前者比后者的优势。该研究还试图比较洗澡对能够自主活动的老年人局部皮肤血流量的影响。沐浴后，脉冲成分比其他成分有增加的趋势。研究还发现，并非所有老年人的皮肤血液流动都得到了改善。这表明，在老年人中，沐浴增加皮肤微循环的能力不太明显。认为利用激光多普勒记录的定量分析，可以清楚地了解老年人微循环的部分细节。利用这些方法对微循环进行进一步的研究，将使这些频率指标在护理中发挥作用。

Local skin blood flow was measured by laser doppler flux meter (Periflux PF2, Perimed, Sweden) at the dorsal base of the thumb in 49 elderly person staying in nursing home, and analyzed through computing soft MacLab ver.3,4 by using FFT translator for frequency detection.It was recognized four components of frequency band, the peak frequency of each component were around 1Hz/sec, 0.3Hz/sec, 0.1Hz/sec and 0.03Hz/sec respectively. The first one seemed to correspond to flux by pulse, next one seemed to correspond to breathing. The third one seemed to correspond to basic wave according to regulation by the vasomotor neuron. It was tried to compare proportion of the flux by pulse to the rest flux quantitatively between bedridden elderly (including wheelchair elderly) and elderly who were possible to move by their self. Predominance of the pulse component in former than latter was verified.It was also tried to compare the effect of bathing on local skin blood flow in elderly who were possible to move by their self. The pulse component had a tendency to increased more than the rest component after bathing. It was also observed that not all of the elderly receive improvement of skin blood flow. This suggested that in the aged the ability to increase skin microcirculation in response to bathing is less pronounced.It was considered that the part of the details of the microcirculation in elderly was made clear by using quantitative analysis of laser doppler record. Further investigation for the microcirculation by these method will be make these frequency index useful in nursing care.