论文部分内容阅读
目的：对人的喉外肌(甲状舌骨肌、胸骨甲状肌、胸骨舌骨肌和肩胛舌骨肌)与喉内肌(甲杓肌)进行同步肌电图的研究。方法：检测8例患者完全单侧声带麻痹的同步肌电图。结果：①发音时，各喉外肌均呈与甲杓肌基本同步的密集型放电，音量大，放电强。发音条件一致时，诸喉外肌的放电不同，发不同的元音也不同；②吞咽及咳嗽时诸喉外肌均呈密集型强放电；但较甲杓肌提前约300～500 ms，屏气时诸喉外肌均呈与甲杓肌基本同步的密集型放电；③深吸气时诸喉外肌也放电，但放电强度低于发音及各种括约肌活动时的电位。结论：用支配肩胛舌骨肌的神经再支配麻痹的甲杓肌，恢复声带内收功能更符合生理特征。
OBJECTIVE: To study the simultaneous electromyography (EMG) of human extrathoracic muscles (thyroid hyoid muscle, sternum thyroid muscle, sternohyoid muscle and scapular hyoid muscle) and laryngeal muscle (thyroid muscle). METHODS: Synchronous EMG was performed in 8 patients with complete unilateral vocal cord paralysis. Results: ① At the time of pronunciation, each thoracic muscle showed an intensive discharge basically synchronized with the thyromander, with a large volume and strong discharge. When the pronunciation conditions are the same, discharges of various thoracic muscles are different, and different vowels are different; ② When throat and coughing, the thoracic muscles are intensively discharged; When all the laryngeal muscle were showed intensive synchronization with the thyroid muscle discharge; ③ deep inspiration when the laryngeal muscle discharge, but the discharge intensity is lower than the pronunciation and sphincter activity of the potential. CONCLUSION: Reconstruction of the paralyzed parakeetoid muscle by the nerves that control the scapular muscles of the shudan, restores the vocal cord adduction function more in line with the physiological characteristics.