[Endonasal repair of spontaneous CSF fistulas of the lateral recess of the sphenoid sinus].

CSF fistulas of the lateral recess of the sphenoid sinus are a rare surgical pathology. Cerebrospinal fluid leak from lateral recess of the sphenoid sinus is observed with a frequency of 7.7% among all leakafe of the skull base.

[Epidemiology and modern methods of treatment of non-traumatic nosebleeds].

Unlabelled: Data on the detection incidence of nosebleeds (NBs) of non-traumatic origin in the population show considerable variability in statistical indicators, and NBs treatment and consequences depend on the localization of hemorrhage source, the volume of blood loss, patient's general condition, the presence and nature of comorbid pathology and a number of other factors. There are some differences in the choice of NBs treatment options, evaluation of their clinical and economic efficiency, which indicates the need to analyze and systematize the results of such studies.

Objective: To analyze data on prevalence and current treatment approaches of non-traumatic nosebleeds.

[Assessment of the structural features of the hard palate in endonasal surgery].

Unlabelled: Data on the features of the anatomical structure of the hard palate are little described in the scientific literature, and therefore are not taken into account when planning surgical treatment. One of the intraoperative complications during intervention on the lower part of the nasal septum is perforation of the bottom of the nasal cavity, which can develop during a christotomy. This complication mainly depends on the features of the anatomical structure of the hard palate.

[Clinical and radiological classification of otosclerosis].

The article presents various classifications of forms of otosclerosis (OS), which change with the development of diagnostic methods. At the same time, according to the literature, a unified OS classification has not yet been adopted. All existing classifications are imperfect to some extent.