Department of Neurosurgery, Saitama Medical Center, Jichi Medical University, 847 Amanumacho, Omiyaku, Saitama-shi, 330-8503 Saitama-ken, Japan.
J Clin Neurosci. 2010 Aug;17(8):1053-6. doi: 10.1016/j.jocn.2009.09.040. Epub 2010 May 21.
A 54-year-old man presented with an intracranial schwannoma of the hypoglossal nerve between the medulla and the left hypoglossal canal. The condylar fossa approach was used with intra-operative electromyography (EMG) monitoring of the lower cranial nerves. The tumor was then removed carefully without decreasing the tongue EMG responses. EMG monitoring enabled us to remove the tumor while maintaining the function of the hypoglossal nerve. Tongue EMG was easily recorded by stimulating the hypoglossal nerve fibers, which was useful in identifying the hypoglossal nerve and evaluating its function. This suggests that tongue EMG is a useful monitoring tool to enhance neurological outcome following removal of tumors in this region.
一位 54 岁男性患者因延髓与左侧舌下神经管之间的舌下神经鞘瘤就诊。采用髁突窝入路，术中对颅神经进行肌电图（EMG）监测。然后在不降低舌 EMG 反应的情况下小心地切除肿瘤。EMG 监测使我们能够在保持舌下神经功能的情况下切除肿瘤。通过刺激舌下神经纤维，很容易记录舌 EMG，这有助于识别舌下神经并评估其功能。这表明，舌 EMG 是一种有用的监测工具，可以提高该区域肿瘤切除后的神经学预后。
