Department of Rehabilitation Medicine, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan.
Neuromodulation. 2011 May-Jun;14(3):278-83; discussion 283. doi: 10.1111/j.1525-1403.2011.00331.x. Epub 2011 Mar 1.
This study aimed to determine the laryngeal elevation muscle motor points, evaluate the movement of hyoid bone and larynx during stimulation of the motor points, and examine the potential for treating severe dysphagia by functional electrical stimulation.
The motor points of the laryngeal elevation muscles were anatomically determined from four cadavers. Those motor points in two healthy subjects and one lateral medullary syndrome patient were electrically stimulated by surface or implanted electrodes.
The movements elicited by electrical stimulation of the motor points were greater in implanted than in surface electrodes. Elevation of the hyoid bone and the larynx in a lateral medullary syndrome patient were achieved with the implanted electrodes, but the upper esophageal sphincter opening was not obtained unless an additional cricopharyngeus muscle block was provided.
The hyoid bone and larynx were elevated by electrically stimulating the motor points of the laryngeal elevation muscles.
本研究旨在确定喉提升肌运动点，评估在刺激运动点时舌骨和喉的运动，并探讨通过功能性电刺激治疗严重吞咽困难的可能性。
从四个尸体中解剖确定喉提升肌的运动点。对两名健康受试者和一名延髓外侧综合征患者的运动点进行表面或植入电极的电刺激。
植入电极刺激运动点引起的运动比表面电极更大。植入电极可使延髓外侧综合征患者的舌骨和喉上提，但除非提供额外的环咽肌阻断，否则无法打开食管上括约肌。
通过电刺激喉提升肌的运动点可使舌骨和喉上提。
