Study on the Application of Cold Vasodilation Test to Case of Sensory Paralysis of Lower Lip

到目前为止，对感觉麻痹的研究已经多种多样。至于我们，作为客观评价感觉麻痹的范围和程度及其恢复程度的方法，我们将刘易斯证明的冷血管扩张应用于下唇感觉麻痹，开发了冷负荷装置，以建立更高的判断结果和高度可重复的检查，并通过热视频系统进行分析。为掌握瘫痪的范围，判断其发病阶段，估计其预后，进行了本研究。<Results>对20例单侧下唇感觉麻痹患者进行了检查，其中单纯激光治疗2例，单纯药物治疗1例，其他（1例）和激光与药物联合治疗（16个案件）检查冷血管舒张试验患侧体温变化及病人主诉，皮肤温度无明显差异正常和患侧的表面或温度恢复的速度对于“麻痹感觉淡漠”的情况。这种情况是真实的投诉的情况下，“麻痹感”。然而，对于主诉“过敏症状”的病例，如蚁感、不适等，在70%的病例中观察到患侧皮肤温度比正常侧更快地升高。鉴于神经再生时会出现过敏症状，患侧皮肤温度的快速升高被认为是感觉麻痹临床恢复的有效发现。目前的研究在神经损伤的程度、主诉的多样性、病例数、观察期等方面仍不令人满意，促使我们做进一步的研究。

Sensory paralysis has been variously examined so far. As for us, as an approach to the objective evaluation of the extent and degree of sensory paralysis and the degree of recovery therefrom, we have applied cold vasodilation, as proved by Lewis, to sensory paralysis of lower lip, have developed a cold loading apparatus in order to establish higher results of judgment and highly-reproducible examination and have made analyzes by means of thermal video system.Thus, we made the present study for the purpose of grasping the area of paralysis, judging its morbid stage and estimating its prognosis.<Results>Twenty cases of patients with unilateral sensory paralysis of lower lip were examined.Treatment included single laser treatment (2 case), single drug treatment (1 case), other (1 case) and combination of laser and drug treatments (16 cases).Examination of the variation of temperature on the affected side in cold vasodilation test and of concrete complaints of patient revealed no distinct difference either in temperature on skin surface of normal and affected side or in the rapidity of temperature recovery for case of "indifference to paralytic sensation". The case was true of cases of complaints of "paralytic sensation". For cases of complaints of "hypersensitive symptoms" such as formication, discomfort and the like, however, quicker increases in the affected side's, skin temperature than the normal side were observed in 70%. Seeing that hypersensitive symptoms are known to occur at nerve regeneration, quicker increases in the affected side's skin temperature was regarded as an effective finding suggestive of clinical recovery of sensory paralysis.The present study remains unsatisfactory for the extent of nervous injury, diversity of complaints, number of case, observation period, etc., inducing us to make further studies.