nasal valve stenosis
Introduction
Introduction to nasal valve stenosis The nasal valve area is the intranasal hole, which is located in the deep part of the nasal vestibule and in front of the front end of the inferior turbinate. It consists mainly of the anterior and posterior end of the nasal septal cartilage and the anterior portion of the nasal cavity. It is a narrow triangle and is the narrowest part of the nasal airway. . If the congenital malformation, trauma, facial nerve spasm, and the expansion of the nasal artery connecting the large wing cartilage lose tension, the angle of the nasal valve area is less than 10°, that is, nasal obstruction occurs. The treatment of this disease is mainly surgery. If there is a deviation of the anterior and posterior end of the nasal septum, the incision should be placed in front of the nasal septum for periosteal resection, so as to completely remove the degenerated cartilage and the condyle located below. If the lateral lateral cartilage protrudes inward, the nasal tip should be raised with a small hook under local anesthesia, the lateral lateral cartilage should be exposed, the outer skin should be cut with a knife, the subcutaneous tissue can be separated, the periosteum can be cut, and the two sides of the cartilage can be exposed. , remove the protruding part of the cartilage, but do not cut too much, so as to avoid the asymmetrical appearance of the nose on both sides. Finally suture the skin incision. basic knowledge The proportion of illness: 0.005% Susceptible people: no specific people Mode of infection: non-infectious Complications: idiopathic facial nerve spasm
Cause
Cause of nasal valve stenosis
The nasal valve area, that is, the intranasal hole, is located in the deep part of the nasal vestibule, in front of the front end of the inferior turbinate. It is mainly composed of the anterior and posterior end of the nasal septal cartilage and the anterior part of the nasal cavity. It is a long and narrow triangle with an average area of 55. The square of ~64 (mm) has a crack-like opening at the top of the triangle. The incision is narrow, and the normal angle is 10° to 15°. It is the narrowest gap in the nasal cavity, called the nasal valve, and is inhaled into the nasal cavity. The air has the greatest resistance here. If the congenital malformation, trauma, facial nerve spasm, and the expansion of the nasal artery connecting the large wing cartilage lose tension, the angle of the nasal valve area is less than 10°, that is, nasal obstruction occurs.
Prevention
Nasal stenosis prevention
There is no effective preventive measure for this disease. Early diagnosis and early treatment are the key to the prevention and treatment of this disease.
Complication
Nasal stenosis complications Complications idiopathic facial nerve spasm
If due to congenital malformation, trauma, facial nerve spasm, the expansion of the nasal artery connecting the large wing cartilage loses tension, etc., the angle of the nasal valve area is less than 10 °, that is, nasal obstruction occurs.
Symptom
Symptoms of nasal valve stenosis Common symptoms Polyp nasal bleeding when inhaling nasal obstruction
With the raised nose tip test and the Cottle sign positive, a diagnosis can be made, and the nasal septum front end and the large wing cartilage can be inspected with a nose to confirm the obstruction.
Mainly for nasal obstruction during inhalation, no abnormalities such as turbinate hypertrophy or polyps were found in the anterior nasal examination. The nose of the patient was lifted upwards, and the nasal obstruction disappeared immediately. If the thumb and forefinger were pushed to the sides of the nose, the nasal obstruction was immediately released. , called the Cottle sign positive.
Examine
Nasal stenosis examination
Lift the tip of the patient's nose and the nasal obstruction disappears immediately. If the thumb and forefinger are pushed to the sides of the nose, the nasal obstruction is immediately released, and the Cottle sign is positive. A diagnosis can be made, and the nasal septum front end and the large wing cartilage can be inspected inwardly by nasal prosthesis, and the obstruction site can be clearly defined.
Diagnosis
Diagnosis and identification of nasal valve stenosis
The disease can be diagnosed according to clinical and examination, without identification.
