Laryngeal edema
Introduction
Introduction to laryngeal edema Laryngeal edema is a submucosal tissue fluid infiltration at the lax throat. Relaxation of the laryngeal mucosa, such as sputum, sputum, epiglottis, etc., submucosal interstitial edema, infiltration of exudate. The exudate of infectious laryngeal edema is serous pus, and the exudate of allergic and hereditary vascular laryngeal edema is serous. basic knowledge The proportion of the disease: 0.5% - 0.8% (incidence rate of about 0.5% - 0.8%, more common in patients with laryngitis) Susceptible people: no specific population Mode of infection: non-infectious Complications: shock
Cause
Causes of laryngeal edema
1, allergic reactions: drugs such as injection of penicillin, oral potassium iodide, aspirin, etc.; allergic people eat sensitive food such as crabs, shrimps, etc. easily cause allergic laryngeal edema.
2, genetic vascular: the patient's blood C1 lipase inhibitor (C1-INH) lack or work defects, is a chromosomal dominant genetic disease, often repeated laryngeal edema.
3, acute infection of the throat, trauma, chemical gas injury, etc. can also cause laryngeal mucosal edema.
4, heart disease, nephritis, cirrhosis, mucosal edema and other systemic diseases.
Prevention
Laryngeal edema prevention
1, avoid neomycin, streptomycin, gentamicin, Guan Mutong and automatic immunization injection.
2, eat more light and easy to digest food.
3, eat more apples, sugar, black sesame, fungus and other foods that raise yin and reduce fire.
4, uremia patients keep the stool smooth, daily defecation 2 3 times is appropriate, do not stay up late, control sexual life, pay attention to rest, avoid cold.
5, those who have taken hormones, according to the specific circumstances under the guidance of physicians to reduce the amount and frequency of hormones.
Complication
Laryngeal edema complications Complications
Secondary bleeding, local infections, lung and intracranial infections, etc., late symptoms are mostly traumatic sequelae, such as scarring, resulting in respiratory and swallowing dysfunction or neurological dysfunction, and affect the face.
Symptom
Symptoms of laryngeal edema Common symptoms Difficulty breathing, cough, hoarseness, diffuse mucosal fat... Neonatal laryngeal suffocation
The onset is rapid, especially in those who have hereditary vascular nerves. The throat wheezing, hoarseness, difficulty breathing, and even suffocation often occur within a few minutes. Laryngoscopy revealed diffuse edema and paleness of the laryngeal mucosa. Infectious people can develop sore throat, throat wheezing, hoarseness and difficulty breathing within a few hours. Laryngoscopy revealed a deep red edema of the laryngeal mucosa with a shiny surface.
Examine
Laryngeal edema examination
Consult your medical history, perform necessary throat and general examinations, and identify laryngeal edema as infectious or non-infectious. Allergic, hereditary vascular neuropathy, sudden onset, accompanied by facial edema and itching, a history of recurrent attacks. Local examination of acute inflammatory laryngeal edema revealed extensive redness of the laryngeal mucosa with secretions. The non-infectious laryngeal edema has a pale edema, which is particularly disgusting and vocal cords. Hereditary angioedous laryngeal edema has several hours of onset, generally characterized by a gradual regression after 72 hours.
(1) Infectivity: Sore throat, hoarseness, throat wheezing and dyspnea may occur within a few hours, and may be accompanied by fever, aversion to cold, sore throat, and the mucosa is dark red edema and the surface is bright under laryngoscopy.
(2) Non-infectious: may have incentives or primary disease, allergic and genetic vascularity, especially rapid onset, rapid development, patients often have throat wheezing, hoarseness, difficulty breathing, even in a few minutes Asphyxia, diffuse edema of the laryngeal mucosa can be seen under the laryngoscope, pale.
Diagnosis
Diagnosis and differentiation of laryngeal edema
diagnosis
Diagnosis can be based on medical history, clinical symptoms, and laboratory tests.
Differential diagnosis
Identify laryngeal edema as infectious or non-infectious.
