S. E. Azhgaliev, E. Kh. Tnaliev, Sh. A. Mukashev, M. R. Menzhanov. Atyrau branch of JSC "MST", Atyrau railway hospital, Kazakhstan. Our region is seeing an increase in nasal and sinus diseases. This increase is due to unfavorable climatic conditions. In winter, cold, humid air, while in summer, salty dust particles irritate the nasal mucosa. This leads to the development of chronic vasomotor and allergic rhinitis, nasal polyposis, and chronic sinusitis, the treatment of which is only possible with surgery. In recent years, significant changes have occurred in global surgery associated with the introduction of new medical technologies using advanced optical equipment. It has become clear that, whether interventions on the chest or nasal cavity, the severity of the surgery itself depends on access to the affected organ. This problem has been resolved with the development of video technology, allowing the surgery to be performed under the control of a video monitor. Since 2002, we have performed 360 rhinosurgical operations, the results and methodology of which we report in this paper. Indications for rhinoscopic surgery: 1. Deviated nasal septum (pinches, ridges). 2. Nasal polyposis. 3. Hypertrophic rhinitis. 4. Chronic sinusitis. Necessary instruments: End and 45° rhinoscope, high-power light source with flexible light guide, video monitor, microdebrider, shaver, set of the finest instruments. Anesthesia: Operations are performed under local anesthesia. First, topical anesthesia with 4% dicaine solution - 6-8 turundas, after 10 minutes infiltration anesthesia with 1% lidocaine solution - 10-15 ml on the operated areas of the nasal cavity. Stages of the operation: In case of hypertrophic rhinitis, we perform conchovasotomy. A 0.5 cm incision is made in the anterior portion of the inferior turbinate. A shaver is then used to remove the hypertrophied portion of the turbinate, followed by turbinate lateralization. We have performed 155 surgeries, with a recurrence rate of 5 (3.2%). We performed 105 surgeries for deviated nasal septa, removing only the pinches and ridges while preserving the septum. It should be noted that in cases of deviated septum, inferior turbinate hypertrophy was observed (42.8%) due to impaired aeration. There were no recurrences. We performed 39 polysinusotomies, including removal of the uncinate process of the maxillary sinus orifice and ethmoid sinus bullae. Recurrence (hemisinusitis) occurred in 2 cases. Polysinusotomies are performed with a shaver; the surgery duration is 15-20 minutes. For sinus cysts and polyposis, the maxillary sinus is opened using a trocar through the canine fossa with a rotational motion. A rhinoscope is first inserted through the trocar capsule. After visualizing the sinus, the polyps and cysts are then removed with a shaver. The number of surgeries is 61. Recurrences occurred in 3 cases (4.9%). The average duration of rhinoscopic procedures is 25-30 minutes. Postoperatively, we perform a finger-foam tamponade for 24 hours and administer Nosobek and Aldicin twice daily. Conclusion: The use of endoscopes in rhinosurgery allows for the thorough removal of all polyps under visual control, revision of the affected paranasal sinuses, and restoration of their drainage and aeration. Endovideorhinoscopic surgery is a promising and effective method for treating diseases of the nose and paranasal sinuses.