Moore D M, Berke G S, Hanson D G, Ward P H
Laryngoscope. 1987 May;97(5):543-53. doi: 10.1288/00005537-198705000-00003.
The effects of simulated paralysis of the peripheral laryngeal nerves on patterns of vocal cord vibrations were studied. Videostroboscopy was used in seven anesthetized mongrel dogs to record laryngeal vibrations during direct electrical stimulation of the recurrent and superior laryngeal nerves under conditions of constant airflow. Stroboscopic images obtained from both supraglottic and subglottic aspects were analyzed frame-by-frame. Results indicated that simulated paralysis of the recurrent laryngeal nerve or combined paralysis of the recurrent and superior laryngeal nerves produced a diminished mucosal wave bilaterally, with loss of the two-mass system of vibration and diminished lateral excursion of the normal cord. In contrast, simulated paralysis of the superior laryngeal nerve was characterized by an abnormally exaggerated vertical movement of the paralyzed cord in relation to the normal cord and a horizontal shifting of the glottis from the paralyzed to the normal side during each vibratory cycle. Clinical implications are discussed and the literature reviewed.
研究了模拟喉周围神经麻痹对声带振动模式的影响。在七只麻醉的杂种犬中使用频闪喉镜，在恒定气流条件下直接电刺激喉返神经和喉上神经时记录喉部振动。从声门上和声门下两个方面获得的频闪图像逐帧进行分析。结果表明，模拟喉返神经麻痹或喉返神经与喉上神经联合麻痹会导致双侧黏膜波减弱，失去双质量振动系统，正常声带的侧向偏移减小。相比之下，模拟喉上神经麻痹的特征是麻痹侧声带相对于正常声带出现异常夸张的垂直运动，并且在每个振动周期中声门从麻痹侧向正常侧水平移位。讨论了临床意义并回顾了相关文献。
