[A case of acute purulent otitis media complicated by atypical mastoiditis on the background of an unverified HIV infection].

According to the literature, acute otitis media is complicated by mastoiditis in 0.15-1% of cases. In turn, mastoiditis can be complicated by meningitis, encephalitis, abscess of temporal lobe of brain and cerebellum, epidural and subdural abscesses, facial nerve paresis, labyrinthitis, phlegmon of soft tissues of neck, as well as subperiosteal abscess, which makes 7% in the structure of mastoiditis complications.

[The experience in surgical treatment of hearing loss in Van der Hoeve patients].

Despite the rare incidence of Van der Hoeve syndrome in the population, the problem of treating patients with this type of disease is important for modern science and practical medicine. One of the most difficult tasks in treatment is to improve the quality of hearing. The world scientific community lacks a unified coordinated approach to the methods of auditory rehabilitation of patients with Van der Hoeve syndrome.

[A meta-analysis of clinical studies in otorhinolaryngology].

The Objective: Of the work was to describe the basics of a meta-analysis with features for evaluating models with fixed and random effects, to present principles for interpreting the graphical results of a meta-analysis (forest plot or blobogram) of comparative reviews of randomized clinical trials (RCTs).

Material And Methods: To illustrate the possibility of efficient use of the R software environment for meta-analysis, we used the results of RCTs of various tonsillectomy methods already published in the Cochrane Database review.

Results: The article provides explanations for the calculation of effect size, heterogeneity statistic, and other meta-analysis statistics and their interpretation for evaluating RCTs and recommendations for choosing a model depending on the on the general research concept.

[Clinical case for removal infralabyrinthine petrous bone cholesteatoma with preservation the facial nerve].

The article presents the case report of infralabyrinthine petrous bone cholesteatoma. We have analyzed the preoperative examination of the patient for identification method of surgical treatment with preservation the facial nerve and reducing cholesteatoma risk, perioperative findings and the end result of surgical treatment.

[Sequential bilateral cochlear implantation with long interval between surgeries in deaf-blind patient].

The efficacy of sequential bilateral cochlear implantation with long interval between surgeries (18 years) was investigated in deaf-blind patient (22 years old man, lost hearing and vision after meningitis at the age 2.5 years). At the age 4 years he got cochlear implant at right ear.