The basic wave pattern of lumbar root potentials and clinical application

腰椎根电位基本波型及临床应用

基本信息

批准号：
61480322
负责人：
TANAKA Hiromi
金额：
$ 3.84万
依托单位：
Saitama Medical Center The Saitama Medical School
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

项目摘要

We routinely use the morphological examination for an objective deagnosis assisting clinical examinations in lumbar root radicuropathy. We,however, not infrequently encounter the clinical cases in which the level diagnosed by clinical examination does not coincide the result of myelography. In these cases electrophysiological examination are needed. It is desirable to devise more direct electrophysiological examinations which allow us to record electrical activities of the nervous system revealing the actual state of nerve conduction. Requirements for such examination would be as follows; 1) easy applicability in the out-patient clinic, 2) minimal risk on execution, and 3) selective recording of the afferent and efferent nerve volleys, if possible.The investigation was carried out on 15 patients with the lumbar disc herniationand the spinal stenosis, and also five neurologically normal adult volunteers. Tibial or peroneal nerve was stimulated with the surface electrodes, and lumbar roo … More t potential was recorded in the epidural space L5/S1,L4/5 and L3/4. Evoked EMG responses were monitored simultaneously with SRP.Two kinds of potentials with aifferent latencies were recorded from the epidural electrodes by stimulation of the tibial nerve with the intensity evoking both H and M responses in the soleus muscle. The relationship of the amplitude between SRP and the corresponding H-reflex and M-response was examined. From these result the liminal stimulation at the M-threshold would allow us to monitor the conduction of the posterior root and the supra maximal stimulation of the M-response do that in anterior root.In posterior and anterior of LDH and LSS, 1)positivisation, 2)polyphasic wave and 3)pathological low amplitude were examined. 11 cases of the examined 15 cases had the positivisation and/or polyphasic potentials in the posterior or anterior root. The pathological waves were not observed in the remaining 4 cases. But 3 of those 4 cases showed the pathological low amplitude by using the quantitative method for estimating the low amplitude. We found the present examination satisfactory despite some problems still remained. Less

我们通常会使用形态检查进行客观命名，以有助于腰根辐射病中的临床检查。但是，我们不会很少遇到临床病例，在这种情况下，通过临床检查的水平诊断并不是骨髓学的结果。在这些情况下，需要电生理检查。希望设计更直接的电生理检查，这使我们能够记录神经系统的电活动表明对这种检查的要求将如下； 1）在门诊诊所中的容易适用性，2）执行的风险最小，3）如果可能的话，选择性记录传入和有效的神经尿。用表面电极刺激胫骨神经或腓骨神经，腰部屋顶……在硬膜外空间L5/S1，L4/5和L3/4中记录了更多的T潜力。简单地用SRP监测诱发的EMG响应。通过刺激胫骨神经，从硬膜外电极记录了两种电势，并在造成肌肉肌肉中的H和M反应都引起H和M反应。检查了SRP与相应H反射和M反应之间的放大器之间的关系。从这些结果中，m阈值的限制模拟将使我们能够监测后根的传导，并在前根中最大的最大刺激M-反应。在LDH和LSS的后端和抗验，1）阳性，2）阳性，2）多位性波和3）多位性波和3）poldyolityaliolity poldicaliolity poldical Polidical andplifier amplifier。 11例检查的病例有15例，具有后或抗牙根的潜力和/或多重性潜力。在其余4例中未观察到病理波。但是，这4例病例中有3例通过使用定量方法来估计低放大器，显示了病理低放大器。我们发现目前的考试满意度工厂目的地仍然存在一些问题。较少的