轴索反射反应
当对精确界定的皮肤表面给予热(如用moor SHO2进行加热)、电或化学(如用moor MIC2离子导入乙酰胆碱)刺激时,除受刺激区域的皮肤以外,其周边区域皮肤的微循环血流也出现上升,形成潮红、充血、甚至水肿等反应。这种由刺激引发逆向神经信号传输,导致神经支配的血管发生舒张的过程即轴突反射性炎症反应,也称为充血反应。轴突反射性炎症反应的缺失常常意味着周围神经特别是小纤维神经功能异常,是对由糖尿病或其它疾病引发的小纤维神经病或周围神经疾病的灵敏检测指标,可对糖尿病足等疾病做出准确的早期诊断。
激光多普勒血流监测仪(moorVMS-LDF)用于评价血管舒张的幅度以及其随时间的变化,而通过激光多普勒成像仪(moorLDI2)或激光散斑成像仪(moorFLPI)可得到充血面积等更多的信息。例如在糖尿病足早期,下肢小纤维神经功能受损导致其充血面积明显小于正常反应。
轴索反射试验
轴索反射试验过程
所需设备
moorLDI2点扫描激光多普勒成像
moorVMS-HEAT温度控制模块
moorFLPI-2激光散斑血流成像
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