Reigel D H, Dallmann D E, Scarff T B, Woodford J
Dev Med Child Neurol Suppl. 1976(37):42-9. doi: 10.1111/j.1469-8749.1976.tb04279.x.
Somatosensory evoked potentials were studied in seven infants during surgery for repair of thoraco-lumbar myelomeningocele. All were operated on during the first 24 hours of life. Because anaesthetics were known to suppress somatosensory evoked potentials, narcotics and muscle relaxants were used for anesthesia. Before surgical dissection, stimulation of median nerves evoked cortical responses in five of the seven patients. After dissection, evoked potentials could be retrieved from the neural plaque with peroneal nerve stimulation in five of the seven infants. Stimulation of the neural plaque produced cortical responses in five of the seven but cortical responses with long latencies could be obtained from peroneal nerve stimulation in only two of the seven patients. In two patients lumbar-root stimulation distal to the plaque produced low-amplitude and delayed-latency cortical responses. These findings indicate that the distal nerves and neural plaque may have intact afferent connections with the cortex: therefore at surgical repair the neural plaque has been meticulously preserved.
对7例接受胸腰段脊髓脊膜膨出修补术的婴儿进行了体感诱发电位研究。所有婴儿均在出生后24小时内接受手术。由于已知麻醉剂会抑制体感诱发电位，因此麻醉采用了麻醉性镇痛药和肌肉松弛剂。在手术切开前，刺激正中神经在7例患者中的5例诱发了皮层反应。切开后，7例婴儿中的5例通过刺激腓总神经可从神经板引出诱发电位。刺激神经板在7例中的5例产生了皮层反应，但仅在7例患者中的2例通过刺激腓总神经可获得潜伏期较长的皮层反应。在2例患者中，在神经板远端刺激腰神经根产生了低振幅和延迟潜伏期的皮层反应。这些发现表明，远端神经和神经板可能与皮层具有完整的传入连接：因此在手术修复时，神经板得到了精心保护。
