What are the symptoms of laryngeal obstruction

summary

For the understanding of laryngeal obstruction, we are mostly because we have encountered patients with this disease, and through some of their manifestations, we can know that this disease has symptoms of dyspnea. Experts say that laryngeal obstruction is not the only symptom. The symptom of laryngeal obstruction is, let me tell you about it.

What are the symptoms of laryngeal obstruction

Inspiratory dyspnea is the main symptom of laryngeal obstruction. The glottis shows the narrowest part of the larynx. When the glottis is narrow, the airflow pushes the inclined plane downward and inward during the inspiratory period, which makes the glottis narrower and causes inspiratory dyspnea. During the expiratory period, the airflow pushes the vocal cords outward. The glottis is larger than that during the inspiratory period, so the dyspnea is not significant.

Because of dyspnea, the chest is dilated, but the pulmonary lobes can't be dilated correspondingly. Therefore, the negative pressure of the chest is increased, and the soft tissues of suprasternal fossa, supraclavicular fossa, infraxiphoid process of sternum or upper abdomen and intercostal space are depressed, which is called four concave sign.

Hoarseness is a common but not necessary symptom. If the lesion invades glottic fissure or its vicinity, hoarseness is obvious. The lesion occurs in the ventricular zone or subglottic cavity, and hoarseness appears later or not. However, when breathing, there may be roaring and whistling sound.

matters needing attention

We must go to the hospital regularly for examination and treatment. We must not delay the illness. We should eat more fruits and vegetables rich in cellulose and vitamins, and eat more balsam pear, cantaloupe, mustard and broccoli.