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用于感觉神经动作电位(SNAP)幅度和潜伏时测定的方法有两种,即顺向法(OD)和逆向法(AD).上肢正中神经与尺神经的感觉神经传导的顺向法是在指端适当部位刺激神经而在近体端记录。逆向法则相反,即刺激神经近体端而在远体端记录。上肢SNAP 的测定一般使用上述二种方法进行,测定中使用的电极为表面盘状电极或环状电极。对于OD 法和AD 法所得结果间有无差异,目前尚有争议。本文介绍的是一种由Roth 于1976年首先描述的顺向感觉神经传导测定法即Roth 技术.方法:使用Roth 技术进行正中感觉神经传导
There are two ways to measure the amplitude and latency of sensory nerve action potential (SNAP): forward method (OD) and reverse method (AD). The forward method of sensory nerve conduction between the median nerve of the upper extremity and the ulnar nerve is Appropriate parts of the fingers stimulate the nerves in the proximal part of the record. Contrary to the inverse law, which stimulates the proximal nerve endings and records at the distal end. The measurement of upper limb SNAP is generally performed using the above two methods. The electrode used in the measurement is a surface plate electrode or a ring electrode. There is still controversy over whether there is any difference between the OD and AD results. This article presents a forward sensory nerve conduction assay, Roth, first described by Roth in 1976. METHODS: Roth technique was used to conduct median sensory nerve conduction