Stallworth J M, Horne J B, Plonk G W
Am Surg. 1981 Aug;47(8):333-7.
Reflex adjustments of the blood flow through the skin are mediated largely by the sympathetic nervous system and play a fundamental role in the regulation of body temperature. Since blood flow in the digits is almost entirely through skin vessels, surface temperature measurements and digital plethysmography are useful methods of studying the changes in digital blood flow. Sweating is also primarily controlled by the sympathetic system and can be monitored by measuring the electrical resistance of the skin. A noninvasive test to assess sympathetic activity is described comparing the findings in normal subjects and patients with arterial diseases, vasospasm, and diabetes. Digital arteries obstructed by diseases or clot can be delineated from obstruction due to vasospasm, and diabetic neuropathy can be objectively identified. Follow-up studies in more than 1200 patients have demonstrated that an accurate prediction of the outcome of sympathectomy or nonoperative treatment can be made after assessing the results of this safe and inexpensive noninvasive test.
皮肤血流的反射性调节主要由交感神经系统介导，在体温调节中起重要作用。由于手指的血流几乎完全通过皮肤血管，因此体表温度测量和手指体积描记法是研究手指血流变化的有用方法。出汗也主要受交感神经系统控制，可通过测量皮肤电阻进行监测。本文描述了一种评估交感神经活动的非侵入性测试，并比较了正常受试者与患有动脉疾病、血管痉挛和糖尿病患者的测试结果。因疾病或血栓阻塞的指动脉可与血管痉挛引起的阻塞相区分，糖尿病性神经病变也可被客观识别。对1200多名患者的随访研究表明，在评估这项安全且廉价的非侵入性测试结果后，可以准确预测交感神经切除术或非手术治疗的结果。
