What Are the Different Types of Eustachian Tube Dysfunction?
On the two side walls of the nasopharynx, equivalent to about 1 cm behind the lower turbinate, there is an opening each. This mouth is sickle-shaped or triangular, and it is called the eustachian tube oropharynx. The pharyngeal cavity communicates with the tympanic cavity of the middle ear through the eustachian tube through this mouth. The eustachian tube of the eustachian tube is usually closed. When swallowing or opening the mouth forcefully, air enters the tympanic cavity through the eustachian tube to maintain air pressure balance on both sides of the eardrum. When the throat is infected, bacteria can spread to the middle ear through the eustachian tube, causing otitis media.
- Chinese name
- Eustachian tube
- Foreign name
- Pharyngeal tube pharynx
- On the two side walls of the nasopharynx, equivalent to about 1 cm behind the lower turbinate, there is an opening each. This mouth is sickle-shaped or triangular, and it is called the eustachian tube oropharynx. The pharyngeal cavity communicates with the tympanic cavity of the middle ear through the eustachian tube through this mouth. The eustachian tube of the eustachian tube is usually closed. When swallowing or opening the mouth forcefully, air enters the tympanic cavity through the eustachian tube to maintain air pressure balance on both sides of the eardrum. When the throat is infected, bacteria can spread to the middle ear through the eustachian tube, causing otitis media.
Eustachian tube pharyngeal anatomy and related diseases
- 1. From the clinical perspective, it is divided into open type (triangular and circular) and poor open type (fractured and umbilical).
- 2. The relationship between eustachian tube morphology and eustachian tube dysfunction
- The shape of the eustachian tube of the eustachian tube may affect the function of the eustachian tube. Observation of the eustachian tube of patients with secretory otitis media and abnormal opening of the eustachian tube also confirmed this. Generally, it can be divided into open type and poor open type. The former has a wide pharyngeal orifice, which is less likely to be blocked from the morphological point of view, but may be more prone to abnormal opening of the eustachian tube than the latter, and the latter is morphologically itself. In a semi-closed state, it is easy to completely block when there is local inflammation, edema or compression, so secretory otitis media may be more likely to occur.
- 3, the impact of the lower turbinate on the opening of the pharynx
- It is generally believed that diseases of the nasal cavity and sinuses will affect the function of the eustachian tube. From our measurement results, we can see that the distance between the inferior turbinate and the eustachian tube pillow (pharyngeal mouth) varies greatly, and the smallest distance is only about 3mm. In such a small distance, when the lower turbinate is slightly swollen, it may affect the opening of the pharynx, and the influence of the turbinate on the eustachian tube is mainly at the rear end.
- 4. When the current lip is absent, the front edge of the eustachian tube of the eustachian tube actually lacks a barrier and is directly exposed behind the nasal cavity. When the nasal cavity and sinuses are inflamed, the throat is easily blocked by secretions and the eustachian tube function occurs. obstacle.
Eustachian tube and throat related clinical techniques
- Because the eustachian tube is connected between the nasopharynx and the tympanic cavity, it is clinically caused by hyperplasia or infection of mucosal lymphoid follicles around the pharynx, congestion, swelling and stenosis, affecting hearing. The eustachian tube is dilated, and a suitable size B -shaped metal catheter is used. Slowly pull the elbow forward. At this time, you can feel the elbow slide over a raised round pillow and slip into a depressed throat. When the operation is not smooth or failed, the following factors should be considered: (1) the shape of the pharynx: triangle and oval are easy to insert, half-moon and trumpet are difficult to insert; (2) the posterior lip of the round pillow is poorly developed, low and narrow There is no feel when pulling the catheter forward, and the pharynx cannot be found; (3) The distance from the front edge of the nasal wing to the posterior wall of the pharynx and the distance to the pharynx: comparing the data provided, we can know its depth reference.