How does the ENT endoscope check the throat?
The autumn climate is relatively dry and many factors cause throat diseases. The throat is one of the important organs. If you feel unwell, you should go to the hospital for examination and treatment. Ear, nose, and throat endoscopes are common equipment in otolaryngology, mainly for ear, nose, and throat examinations. Diagnosis and surgical treatment, then how does the ear, nose and throat endoscope check the throat? The ENT endoscopes manufacturers will give you a brief introduction.
Generally, throat endoscopy is required when suffering from pharyngeal diseases. The more common endoscopes are fiber laryngoscope and electronic laryngoscope. So how to check the throat?
1. Indirect laryngoscope: This is a relatively simple inspection method. It uses a special reflector to roughly see the changes in the throat under the reflection of the light. It requires the patient to stretch the tongue during use, so retching may occur. Situation, but this check does not require anesthesia.
2. Direct laryngoscopy: This kind of examination requires the use of laryngoscopy under anesthesia. This kind of examination is relatively delicate and can observe the structure of the throat, but it is very painful for the patient.
3. Fiber laryngoscopy: If you use this inspection method, you need local anesthesia, from the nostril down to the throat, basically there is not much pain, but do not eat after the inspection, it takes at least two hours to eat.
4. Electronic laryngoscopy: Generally, some large hospitals have electronic laryngoscopy similar to fiber laryngoscopy, but the observation is more careful. Under normal circumstances, anesthesia is not required, only the blood is checked for infection, and there is basically no pain.
一、What should be paid attention to when using laryngoscope to examine the throat?
1. Precautions before laryngoscopy:
1. Carry out a detailed preoperative evaluation.
Since video laryngoscope is an invasive examination, the body of the larynx needs to enter the laryngeal cavity, even the trachea, which may irritate the vocal cords and cause laryngospasm, mucosal damage, etc. Therefore, it is necessary to perform necessary procedures on the patient before the laryngoscopy Preoperative examination and safety assessment, especially for older patients with underlying diseases, such as ECG, blood pressure, heart function, brain function, lung function, etc., to avoid risks during the examination; Necessary inspections for infectious diseases should be carried out for special treatment after surgery to avoid iatrogenic infections.
2. It is best to fast with water for four hours before laryngoscopy.
3. Perform adequate preoperative anesthesia.
Anesthesia is required before the laryngoscopy to prevent the patient from vomiting during the examination. Generally, 1% tetracaine can be used for throat spray anesthesia. Tetracaine is a local anesthetic and has a fast onset, usually one or two minutes. It is effective and can last for one to two hours.
二、 Matters needing attention during laryngoscopy:
The laryngoscopy can be performed from the nasal cavity or the oral cavity. During the examination, the patient should relax and not be nervous, closely cooperate with the doctor, and follow the doctor's instructions. Generally, the examination can be completed in three to five minutes.
三、 Matters needing attention after laryngoscopy:
1. After laryngoscopy, fasting with water for two hours is required to prevent the throat reflex and cough reflex from weakening after the throat is anesthetized, leading to aspiration.
2. After laryngoscopy, you should properly fast for spicy food, quit smoking and alcohol, because laryngoscopy may cause damage to the mucous membrane of the laryngeal cavity to avoid laryngitis.
The above briefly introduces how to check the throat with ent endoscope, please consult us for details!