From the Department of Physical Medicine & Rehabilitation, University of Utah, Salt Lake City, UT (DMC, AC); and University of Utah, Salt Lake City, UT (MRR).
Am J Phys Med Rehabil. 2022 Jul 1;101(7):e112-e114. doi: 10.1097/PHM.0000000000002011. Epub 2022 Mar 15.
This case study presents a 31-yr-old male weightlifter without known neuromuscular disease who presented with 5 wks of atraumatic, constant fasciculations of his right teres major muscle without recent injury. Electromyography identified fasciculation potentials within the teres major and pronator teres, suggesting an acute C6 radiculopathy, although a cervical magnetic resonance imaging demonstrated no significant neuroforaminal stenosis. Trigger point injections and multiple medications failed to stop the fasciculations. Under electromyography and ultrasound guidance, he was focally injected with botulinum toxin to the teres major 10 wks from initial onset with subsequent complete resolution of the symptoms and no side effects.
本病例研究介绍了一位 31 岁男性举重运动员，无已知神经肌肉疾病，右侧胸大肌出现 5 周无创伤性、持续的肌束震颤，无近期外伤。肌电图显示胸大肌和旋前圆肌存在肌束震颤电位，提示急性 C6 神经根病，尽管颈椎磁共振成像未显示明显的神经孔狭窄。触发点注射和多种药物均未能阻止肌束震颤。在肌电图和超声引导下，他于发病后 10 周对胸大肌进行了肉毒毒素局部注射，随后症状完全缓解，无任何副作用。
