SKIN-SURFACE TEMPERATURE-GRADIENTS CORRELATE WITH FINGERTIP BLOOD-FLOW IN HUMANS
SKIN-SURFACE TEMPERATURE-GRADIENTS CORRELATE WITH FINGERTIP BLOOD-FLOW IN HUMANS
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DOI：
10.1097/00000542-199009000-00027
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发表时间：
1990-09-01
期刊：
影响因子：
8.8
通讯作者：
SESSLER, DI
中科院分区：
文献类型：
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作者：
RUBINSTEIN, EH;SESSLER, DI
皮肤表面温度梯度（前臂温度-指尖温度）已被用作热调节性外周血管收缩的指标。然而，还没有专门将它们与手指的总血流量进行比较，也不知道指尖温度需要多长时间才能完全反映手指血流量的突然变化。将19名健康志愿者的稳态皮肤温度梯度与指尖总血流进行比较。用静脉闭塞容积容积脉搏图测量的皮肤表面温度梯度与指尖总血流之间有很好的相关性：梯度= 0.2 - 5.7。Log (flow), r = 0.98。完全动脉阻塞后（8名志愿者）指尖冷却的一半时间为6.6 +-。1.2分钟。作者得出结论，皮肤温度梯度是热调节性外周血管收缩的准确测量。
Skin-surface temperature gradients (forearm temperature - fingertip temperature) have been used as an index of thermoregulatory peripheral vasoconstriction. However, they have not been specifically compared with total finger blood flow, nor is it known how long it takes fingertip temperature to fully reflect an abrupt change in finger blood flow. Steady-state skin-temperature gradients were compared with total fingertip blood flow in 19 healthy volunteers. There was an excellent correlation between steady-state skin-surface temperature gradients and total fingertip blood flow measured with venous-occlusion volume plethysmography: gradient = 0.2 - 5.7 .cntdot. log (flow), r = 0.98. The half-time for fingertip cooling after complete arterial obstruction (in 8 volunteers) was 6.6 .+-. 1.2 min. The authors conclude that skin-temperature gradients are an accurate measure of thermoregulatory peripheral vasoconstriction.