laryngotracheal cicatricial stenosis
Introduction
Introduction to laryngotracheal scarring Carytrical stenosis (cicatricialstenosisoflarynxandtrachea) refers to a pathological state in which the airway is narrowed due to hyperplasia of the larynx and/or the tracheal cavity, and its main physiological function is impaired. It is a common disease of chronic laryngotracheal obstruction, mostly caused by trauma. The disease should be differentiated from congenital subglottic stenosis. Patients with laryngotracheal scar stenosis are mainly dyspnea, hoarseness and wheezing. Indirect laryngoscopy can be seen in laryngeal cavity deformation, vocal cord marking is unclear, scar hyperplasia or adhesion, limited or completely fixed activity, X-ray lateral radiograph, tomographic or CT-defined stenosis, extent, extent, presence or absence of cartilage scaffold defect , displacement, is important for guiding surgery. basic knowledge The proportion of illness: 0.002% Susceptible people: no specific population Mode of infection: non-infectious Complications: congenital subglottic stenosis
Cause
Causes of laryngotracheal scarring
(1) Laryngeal trauma: common in throat contusion, crushing, cutting injury, firearm injury, chemical burns, etc.
(2) iatrogenic injury: such as tracheotomy, intubation injury, artificial respiration with balloon intubation.
(3) sequelae of laryngeal surgery: various half-throatectomy, vocal cord tumor surgery.
(D) neck tumor surgery: thyroidectomy damage bilateral recurrent laryngeal nerve, although there is no scarring, but there are similar treatments.
Prevention
Laryngeal tracheal scar stenosis prevention
The laryngotracheal stenosis is complicated, variable, and more common in children, and treatment is more difficult. Therefore, it is equally important to choose appropriate treatment methods and effective preventive measures.
Complication
Complications of laryngotracheal scar stenosis Complications congenital subglottic stenosis
Usually, as a long-term endotracheal intubation, complications such as inappropriate intralaryngeal surgery and partial laryngectomy occur, and severe breathing causes difficulty in breathing.
Symptom
Throat tracheal scarring symptoms common symptoms dyspnea airway narrowing
The patients were mainly dyspnea, hoarseness and wheezing.
Examine
Examination of laryngotracheal scar stenosis
Indirect laryngoscopy can be seen in laryngeal cavity deformation, vocal cord marking is unclear, scar hyperplasia or adhesion, limited or completely fixed activity, X-ray lateral radiograph, tomographic or CT-defined stenosis, extent, extent, presence or absence of cartilage scaffold defect , displacement, is important for guiding surgery.
Diagnosis
Diagnosis and differentiation of laryngotracheal scar stenosis
diagnosis
Diagnosis can be based on medical history, clinical symptoms, and laboratory tests.
Differential diagnosis
And congenital subglottic stenosis identification, laryngotracheal scar stenosis patients mainly dyspnea, hoarseness and wheezing.
