Kuchiwaki H, Inao S, Andoh K, Ishiguri H, Sugita K
Department of Neurosurgery, Nagoya University School of Medicine, Japan.
Acta Neurol Scand. 1990 Sep;82(3):183-90. doi: 10.1111/j.1600-0404.1990.tb04486.x.
We induced ischemia and stretching by retraction of the spinal cord after laminectomy in 12 anesthetized mongrel adult cats, recorded spinal motor evoked potential (SpMEP) and spinal somatosensory evoked potential (SpSSEP) and determined the spinal cord blood flow (SCBF). The results showed a correlation between progressive deterioration of the function and a decrease in SCBF. Comparing the abnormal findings of both the peak and interpeak latencies in evoked potentials, useful data were more frequently obtained using SpSSEP than SpMEP. Factors involved in their deteriorations seem to be a moderate ischemia by compression, and a stretching by the retraction of the spinal cord. From these results, we conclude that SCBF and SpSSEP are important for monitoring the impulse propagation during retraction of the cervical cord.
我们对12只麻醉的成年杂种猫进行椎板切除术后，通过牵拉脊髓诱导缺血和拉伸，记录脊髓运动诱发电位（SpMEP）和脊髓体感诱发电位（SpSSEP），并测定脊髓血流量（SCBF）。结果显示功能的逐渐恶化与SCBF的降低之间存在相关性。比较诱发电位峰值和峰间潜伏期的异常发现，使用SpSSEP比SpMEP更频繁地获得有用数据。其恶化涉及的因素似乎是压迫导致的中度缺血以及脊髓牵拉导致的拉伸。从这些结果中，我们得出结论，SCBF和SpSSEP对于监测颈髓牵拉过程中的冲动传播很重要。
