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目的：研究甲皱微循环中的汗腺导管及临床意义。方法：利用Olympus显微镜联结闭路电视显示系统观测病人甲皱微循环中的汗腺导管。结果：41种疾病患者的甲皱微循环中发现汗腺导管。在已明确诊断的16个病种，1947例病例中，发现308例甲皱微循环中有汗腺导管。其中，呼吸系统疾病和胶元性疾病发现的较多（80％以上）；脑梗塞、冠心病、糖尿病、高血压等发现的较少（少于15％）。结论：很多疾病的甲皱微循环中发现汗腺导管，尤其是呼吸系统疾病和胶元性疾病。汗腺导管的绝对数明显多于临床微循环检查手册中的正常标准。
Objective: To study the clinical significance of sweat gland duct in nail fold microcirculation. Methods: Olympus microscope combined with closed-circuit television system was used to observe the sweat gland duct in patients with nail fold microcirculation. Results: Sweat glands were found in the nail fold microcirculation of 41 diseases. In 19 cases of 16 diagnosed cases and 1947 cases, it was found that there were 308 cases of sweat gland duct in the nail fold microcirculation. Among them, more respiratory diseases and gum diseases (more than 80%) were found; less (less than 15%) were found in cerebral infarction, coronary heart disease, diabetes and hypertension. CONCLUSION: Sweat glands are found in the microcirculation of nail fold in many diseases, especially respiratory and mesenchymal diseases. The absolute number of sweat glands is significantly more than the normal standard in the clinical microcirculation test manual.