Abstract
Computer tomography (CT) is the most informative diagnostic technique in the field of ENT Surgery. Goal of the research: to examine CT variants of nasal cavity and paranasal sinuses anatomy of patient with chronic dacryocystitis, which determine the strategy of endoscopic dacryocystorhinostomy. Materials and methods: Weconducted a study on 5273 CT scans of nasal cavity and paranasal sinuses. 180 patients with chronic dacryocystitis , which had anatomical peculiarities nasal cavity were operated. Investigation results: The research has shown that the patients should be pre-surgical separated on 5 groups depending on the surgery. In the first group of patients (72, 0 % of cases) performed only dacryocystorhinostomy. In the second group of patients (22.1%) also had different types of septal deformations which required surgical correction. The third group (7.2% of cases) the patients had hypertrophy and bulla of the middle turbinate. The fourth group (2,8% of cases) had inflammatory diseases of paranasal sinuses. The fifth group (1,3% of cases) were patients with congenital anomalies of the facial skeleton, which required the extended surgical interference with full correction of revealed changes. Conclusion CT-research of patients with chronic purulant dacryocystitisin pre-surgical preparations reveals at the average up to 28,0% of various changes in the nasal cavity, which need to surgical correction.