Partanen V S, Nikkanen T A
Strahlentherapie. 1978 Jul;154(7):489-94.
EMG was performed on the upper extremity of the affected side in 55 breast cancer patients who had undergone mastectomy and postoperative radiotherapy. Radical mastectomy caused six latissimus pareses out of 26 patients and seven deltoideus pareses out of 49 patients. Simple mastectomy caused no pareses. As an early complication of radiotherapy five out of 16 patients developed slight EMG changes, most often in the biceps brachii muscle, but no clinical pareses were observed. In the follow-up group (at least 5 years after primary treatment) 18 out of 25 patients had varying EMG alterations. The relative frequency of EMG findings indicates an increasing number of neural changes caused by radiotherapy in the follow-up group. Severe pareses were infrequent as complications of radiotherapy. In neurography of the cutaneous branch of n. radialis a diminution of the amplitude of the sensory response was found one or two months after radiotherapy in the affected side. EMG proved to be useful in estimating both the early and late neural complications of primary treatment of breast cancer and in evaluating patients' capacity for work.
对55例接受乳房切除术及术后放疗的乳腺癌患者患侧上肢进行了肌电图（EMG）检查。在26例行根治性乳房切除术的患者中，有6例出现背阔肌轻瘫，在49例行单纯乳房切除术的患者中，有7例出现三角肌轻瘫。单纯乳房切除术未导致轻瘫。作为放疗的早期并发症，16例患者中有5例出现轻微的肌电图改变，最常见于肱二头肌，但未观察到临床轻瘫。在随访组（初次治疗后至少5年）中，25例患者中有18例有不同程度的肌电图改变。肌电图检查结果的相对频率表明，随访组中放疗引起的神经改变数量在增加。严重轻瘫作为放疗并发症并不常见。在对桡神经皮支进行神经图检查时，发现患侧放疗后1至2个月感觉反应振幅减小。肌电图被证明有助于评估乳腺癌初次治疗的早期和晚期神经并发症，以及评估患者的工作能力。
