To improve diagnostic methods for patients with laryngeal stenosis for the optimal determination of the technique of surgical treatment.

The study include patients with laryngeal pathology in the otorhinolaryngology clinic of the 1-city hospital at Nur-Sultan city. All patients cheek up the necessary clinical, functional, diagnostic studies and treatment measures. It is planned to examine and operate on 70 patients with laryngeal pathology.

1. To study the features of the course of stenosis of the larynx under the influence of various factors, as well as traumatic injuries.
2. To develop optimal diagnostic methods for patients with laryngeal stenosis.
3. To assess the effectiveness of endolaryngeal microsurgery in patients with laryngeal stenosis.
4. To develop recommendations for the organization of treatment for stenosis of the larynx with an increase its functional state.

Inclusion Criteria:

• medically diagnosed with stenosis of larynx
• patients who were observed larynx by MRI and CT
• patients who need surgical treatment of stenosis of larynx

Exclusion Criteria:

• pregnancy
• patients who has positive electromyography findings of motion of laryngeal muscles
• patients who has contraindications to surgical treatment on the other diseases
• patients who has not normal results of lab. analyses