Department of Neurology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Kempenhaeghe Center for Sleep Medicine, Heeze, The Netherlands.
Muscle Nerve. 2019 Jan;59(1):55-59. doi: 10.1002/mus.26322. Epub 2018 Nov 13.
Neuralgic amyotrophy (NA) can often be difficult to diagnose. Nerve ultrasound (US) is potentially useful, but it is operator-dependent, especially for small nerves.
Fifty-one consecutive patients with NA (mean duration 16 months) and 50 control subjects underwent US of the brachial plexus and major nerves of the upper extremity at predefined sites. We compared cross-sectional areas (CSAs) of affected and unaffected sides with controls and sides within patients.
The median nerve and radial nerve at the level of the upper arm were enlarged on the affected sides compared with controls and the unaffected sides of patients. Enlargement was most pronounced for affected sides vs. controls (median 44%, radial 67%).
NA patients showed increased CSAs, especially in the major nerves of the upper limb, even after longer disease duration. This could make US a useful adjunct in diagnosing NA. Muscle Nerve 59:55-59, 2019.
神经痛性肌萎缩(NA)的诊断往往较为困难。神经超声(US)可能具有一定的作用,但该方法具有操作者依赖性,尤其是对小神经。
51 例连续的 NA 患者(平均病程 16 个月)和 50 例对照者接受了上肢臂丛神经和主要神经在预定义部位的 US 检查。我们比较了患侧和健侧与对照组和患者对侧的横截面积(CSA)。
与对照组和患者的健侧相比,上臂水平的正中神经和桡神经在患侧增大。与对照组相比,患侧的增大最为明显(正中神经 44%,桡神经 67%)。
即使在疾病持续时间较长的情况下,NA 患者也表现出 CSA 增加,尤其是在上肢主要神经中。这可能使 US 成为诊断 NA 的有用辅助手段。《肌肉神经》59:55-59,2019 年。