Overview An abnormal opening of the eustachian tube is a symptom caused by an overly open or frequently open eustachian tube. It is most common in adults. The cause is unknown, but is generally thought to be related to atrophy of the lymphatic tissue or fat pad surrounding the cartilage of the eustachian tube. The tympanic membrane agitation and ringing in the ear synchronized with breathing are its clinical characteristics. Clinical manifestations 1. Severe patients have enhanced self-sound, low-frequency tinnitus, and a sense of ear swelling and fullness, and the symptoms may be temporarily relieved after bending and lowering the head. 2. The tympanic membrane is commonly stirred with breathing, hearing is mostly normal, and the eustachian tube bulge becomes thinner while there is scarring around it. 3, mild patients in the empty mouth spit, swallowing saliva, often feel a “stalk” or “thump” or crushed paper sound; but a large gulp of water is normal. Diagnosis: 1. It is usually seen in patients with rapid weight loss, and can also be caused by nasopharyngeal cancer after radiotherapy and nasopharyngeal atrophy. 2.There are symptoms of self-voice enhancement, tinnitus and ear swelling and fullness, and the symptoms can be temporarily relieved after bending down and lowering the head. 3.The tympanic membrane is commonly agitated inside and outside with breathing, and the ridge of the eustachian tube is thinned or scarred around it. 4. Pure tone audiometry shows normal hearing or mild transonic deafness with fluctuating tympanic chamber curve. Treatment principles 1.Etiological treatment: 2.Local treatment: The purpose is to reduce the patency of the pharyngeal tube. (1) Blowing 4:1 boric acid powder and willow acid powder through the eustachian tube catheter, 2-3 times a week, until the symptoms stop. The efficacy is high. (2) Cauterize the pharyngeal opening of the eustachian tube to produce scarring and narrowing. Commonly used 20% silver nitrate, 10% trichloroacetic acid or electrocoagulation. (3) Displacement and rerouting or cutting of the palatine muscle tensor fasciae to produce functional pharyngeal occlusion. (4) Mild eustachian tube anomalies may not be treated locally. (Supplementary: Eustachian tube molding can be considered, that is, the submucosal embedding of autologous cartilage material in the cartilaginous segment of the eustachian tube, thereby narrowing the eustachian tube mouth, from the results of the study here, the effect is significant) Medication principles 1, general cases with antibiotics and other adjuvant drugs combined with local treatment. 2, surgical treatment or the patient is too weak, the use of antibiotics, supportive therapy (including new special drugs). Auxiliary examination 1.The examination protocol of general patients is mainly based on examination box “A”; 2.For those with unknown etiology, the examination protocol can include examination box “A” and “B”. Evaluation of efficacy 1.Cure: disappearance of symptoms. 2.Improvement: symptom reduction. Several causes of abnormal opening of the eustachian tube 1, soft tissue defects around the pharyngeal opening of the eustachian tube scar adhesion atrophy and muscle paralysis, such as atrophic rhinitis pharyngitis after radiation therapy nasopharyngeal mucosa atrophy and severe muscle weakness, etc. 2, mental factors, excessive mental tension so that the muscle is in a state of tonic contraction 3, chronic rhinitis, pharyngitis 4, cold blowing nose too hard on the eardrum. Expert tips The cause of this disease is unknown. For patients with wasting disease who have rapid weight loss, they should go to the hospital early for a comprehensive and systematic physical examination for timely treatment.