Chokroverty S, Deutsch A, Guha C, Gonzalez A, Kwan P, Burger R, Goldberg J
Neurology Service, VA Medical Center, Lyons, New Jersey, USA.
Muscle Nerve. 1995 Sep;18(9):987-91. doi: 10.1002/mus.880180910.
We describe a technique of magnetic coil (MC) stimulation of the thoracic spinal nerves and roots in 12 normal subjects and a patient with diabetes mellitus. We kept the MC flat against the vertebral column in the midline over T-7, T-8, and T-9 spinous processes and obtained compound muscle action potentials from the upper rectus abdominis, external oblique, and intercostal muscles. We obtained mean latencies to these muscles after stimulation in the posterior axillary line. We noted that the onset latencies remained fixed despite increasing the intensity of stimulation from 30% to 100% and on moving the coil up to 3 cm lateral to the spinous processes suggesting that the stimulation of the fastest conducting fibers was occurring at a fixed site, most likely at the intervertebral foramina. Prolonged latencies in the diabetic patient confirmed the diagnosis of radiculoneuropathy.
我们描述了一种对12名正常受试者和1名糖尿病患者的胸段脊神经及神经根进行磁线圈（MC）刺激的技术。我们将MC平放在T - 7、T - 8和T - 9棘突中线处的脊柱上，从腹直肌上部、腹外斜肌和肋间肌获取复合肌肉动作电位。在腋后线刺激后，我们获得了这些肌肉的平均潜伏期。我们注意到，尽管刺激强度从30%增加到100%，并且将线圈向棘突外侧移动3厘米，起始潜伏期仍保持固定，这表明最快传导纤维的刺激发生在一个固定部位，最有可能是在椎间孔。糖尿病患者的潜伏期延长证实了神经根神经病的诊断。
