Friedenberg Scott M, Zimprich Todd, Harper C Michel
Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.
Muscle Nerve. 2002 Apr;25(4):535-9. doi: 10.1002/mus.10068.
A cohort of 106 patients with electrodiagnostically confirmed long thoracic neuropathy (50 patients) or spinal accessory neuropathy (56 patients) seen at the Mayo Clinic over a 22-year period were retrospectively studied to better understand the natural history of these disorders and to determine the role of electrodiagnostic testing in predicting prognosis. Mean follow-up was 48 and 50 months, respectively. Good functional recovery was generally observed regardless of the results of electrodiagnostic studies, but improvement in the amplitude of the spinal accessory compound muscle action potential on serial nerve conduction studies tended to predict a good outcome. No electrodiagnostic findings correlated with poor outcome. Traumatic neuropathies generally did worse than neuropathies of other causes. In spinal accessory neuropathies, involvement of the dominant limb, scapular winging, and impaired arm elevation were associated with a poor outcome. Our data suggest that, contrary to other focal neuropathies, the electrodiagnostic findings do not predict functional outcome in these neuropathies.
对梅奥诊所22年间收治的106例经电诊断确诊为长胸神经病变（50例）或副神经病变（56例）的患者进行回顾性研究，以更好地了解这些疾病的自然病程，并确定电诊断测试在预测预后中的作用。平均随访时间分别为48个月和50个月。无论电诊断研究结果如何，通常都观察到良好的功能恢复，但在连续神经传导研究中，副神经复合肌肉动作电位波幅的改善往往预示着良好的预后。没有电诊断结果与不良预后相关。创伤性神经病变通常比其他原因引起的神经病变预后更差。在副神经病变中，优势肢体受累、肩胛翼状肩胛和手臂抬高受限与不良预后相关。我们的数据表明，与其他局灶性神经病变相反，电诊断结果并不能预测这些神经病变的功能预后。
