Vocal cord atrophy

Introduction The vocal cord atrophy refers to the phenomenon that the vocal cord's own tissue and the vocal cord muscles are atrophied. Once the vocal cords are atrophied, the vocal cords are easy to close when we are vocalizing, so the patient can easily feel that the speech is very tired and the sound will be hoarse. The phenomenon, which leads to the high and low level of the patient can not be achieved in time when working and singing.

Cause

Generally speaking, it is unclear, and it generally has little to do with the use of sound. The vocal cord's own tissue and the muscles of the vocal cords are atrophied. Once the vocal cords are atrophied, the vocal cords are easy to close when we are vocalizing. So the patient can easily feel that the speech is very tired and the sound will be hoarse. When the patient is working and singing, the high and low steps cannot be achieved in time. Teachers or singers who often speak hard, some are aging of the vocal cords after middle age, or the way of long-term vocalization is wrong. The frequency of occurrence of this type of patient male and female is the same, there is no fixed specific ethnic group.

an examination

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Otolaryngology CT examination CT examination

Lost voice and tired of speaking, the sound is hoarse. Under the action of hormones, the tone of women will be higher than that of men. After menopause, the vocal cords will relax and shrink due to aging. The male voice will become thinner and the range will be narrower. Women will lose female hormones and the voice will become lower. Hoarse; both men and women will feel more difficult to speak. The nervous system control ability of the larynx is reduced and the vocal cords are aging. The reduction of the vocal cords and the number of fibers reduces the elasticity of the vocal cord muscles and the poor exercise ability. Therefore, the volume becomes small, the pronunciation is weak, the sound quality is degraded, and the lack of sound is suppressed.

Differential diagnosis

Differential diagnosis of vocal cord atrophy:

1, vocal cord aging: people become older, not only the skin will be loose, the vocal cords will also relax and shrink and gaps, the feeling of the whole voice is old. The larynx is an important vocal organ. When the sound is pronounced, the vocal cord is shifted to the midline, the glottis is closed, and the airflow exhales the impact vocal cord from the lungs, and the sound is emitted. After the resonance of the larynx, pharynx, nasal cavity and chest cavity, and the coordination of the lips and teeth, it is issued. Different sounds. The length, thickness, tension and elasticity of the vocal cords play a decisive role in the pronunciation. The laryngeal mucosa of the elderly is atrophy, the nervous system control ability of the larynx is decreased, and the vocal cords are aging. The reduction of the vocal cords and the number of fibers reduces the elasticity of the vocal cord muscles and the exercise capacity is poor. Therefore, the volume becomes small, the pronunciation is weak, the sound quality is degraded, and the sound is lacking. Suppressed.

2, vocal cord hypertrophy: also known as chronic hypertrophic vocal corditis or chronic proliferative vocal corditis, refers to a wide range of local or increased local vocal cords due to various factors.

3, vocal cord paralysis: or throat paralysis, is a clinical manifestation, not an independent disease. When the motor nerve (recurrent laryngeal nerve) of the larynx is damaged, there are three types of paralysis: vocal cord abduction, adduction, or muscle tension relaxation. Clinically, due to the longer stroke of the left recurrent laryngeal nerve, the left vocal cord paralysis is more common.

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