[Prospects for a passive acoustic research method in otorhinolaryngology]. / Perspektivy passivnogo akusticheskogo metoda issledovaniya v otorinolaringologii.

The authors of the article reviewed acoustic research methods in otorhinolaryngology. All acoustic diagnostic methods are divided into active and passive. Active acoustic methods are based on the emission of acoustic vibrations, in some cases with the subsequent reception and processing of reflected vibrations. Passive acoustic research methods are based on the recording and analysis of sounds arising during the physiological functioning of the studied organs and systems. In otorhinolaryngology, active acoustic methods of studying the ENT organ are more widespread: audiometry, acoustic impedance measurement, ultrasound examination of hearing, auditory evoked potentials, sonotubometry, acoustic rhinometry, ultrasound examination of soft tissues of the neck and paranasal sinuses. Among passive acoustic research methods, the greatest development in clinical practice in otorhinolaryngology was obtained by computer acoustic analysis of the voice - an assessment of the phonatory function of the larynx. Using similar technologies, a technique for acoustic analysis of nasal breathing was developed - a functional assessment of the external nasal valve. Separate groups of authors have carried out an experimental study of the sounds that occur when the auditory tube is opened. Achievements in acoustics and the introduction of advanced technologies in medicine create prerequisites for improving existing and developing new methods of acoustic analysis of the work of ENT organs.

[Eustachian tube drug delivery to the tympanum in patients with otitis media with effusion]. / Otsenka transtubarnoi dostavki lekarstvennykh preparatov v barabannuyu polost' pri ekssudativnom srednem otite.

There are no reliable data on the volume of the drug reaching the affected tympanic cavity during the catheterization of Eustachian tube (ET). Objective: to conduct an experiment and to study the effectiveness of administering a drug into the tympanic cavity of the middle ear using an original ear catheter, which allows catheterization of ET in the direction of its lumen. The study included patients with unilateral OME (n=21, the duration of the disease from 2 to 3 months), who were recommended for the ventilation tube insertion. The main inclusion criterion was 3 degree of patency of the ET. The experiment was performed under endotracheal anesthesia. ET was catheterized before insertion of the ventilation tube, with a 0.9% saline in a volume of 7 ml, which was previously tinted with Brilliant Green. A syringe with a contrast solution was connected to an ear catheter and the drug was injected into the middle ear by the air-liquid substitution method. Otoscopically evaluated the following parameters: the volume of the injected drug (in ml) for the initial (V1), partial (V2) and complete filling of the tympanic cavity (V3). As a result, it was found that 18 patients (85.7%) achieved full or partial filling of the tympanic cavity with a stained preparation: V1=2.25 ml, V2=7.0 ml in 11 (52.4%) patients, V3=4.29 ml - in 7 (33.3%) patients. In this case, the minimum loss of the liquid form of the drug during CT catheterization is 1:2. In 3 (14.3%) patients there were no endoscopic signs of contrasting of the tympanic cavity.

[ENT care in the context of the new coronavirus infection COVID-19]. / Aktual'nye voprosy okazaniya spetsializirovannoi lor-pomoshchi v usloviyakh novoi koronavirusnoi infektsii COVID-19.

The spread of the pandemic of the new coronavirus infection COVID-19 inevitably makes adjustments to the medical care. Given that the main route of transmission is airborne, otorhinolaryngologists are at increased risk of infection. Based on the literature data of leading otorhinolaryngologists, as well as their own experience working with patients with the new coronavirus infection COVID-19, the authors present relevant recommendations on the organization of specialized otorhinolaryngological care in the context of the COVID-19 pandemic. The authors consider the etiology, pathogenesis, and clinical manifestations of COVID-19. The features of the examination of ENT, diagnostic and therapeutic procedures, including the use of silicone hydrotamps to stop the front and rear nose bleeds, developed in L.I. Sverzhevskiy OHRIM, and indications for hospitalization in the ENT hospital. Features of operations on the otorhinolaryngological profile during a COVID pandemic are also described. Summing up, the authors indicate that during the pandemic of the new coronavirus infection COVID-19, otorhinolaryngologists need to adhere to two fundamental principles aimed at preventing the spread of infection: the use of modern effective personal protective equipment and the use of examination methods (surgical treatment methods) that prevent the formation of biological aerosols.

[Observation of the intra-adenoid cysts in the nasopharynx]. / Nabliudenie intraadenoidnykh kist nosoglotki.

The objective of the present study was to demonstrate the clinical significance and possibilities of diagnostics and treatment of the intra-adenoid cysts in the nasopharynx as exemplified by an original observation of an individual case. The cystic structures in the nasopharynx rarely manifest themselves clinically and are known to produce the non-specific symptoms. The patients admitted to the L.I. Sverzhevskiy Research Institute of Clinical Otorhinolaryngology for the surgical treatment of nasopharyngeal cysts account for 0.05% of the total number of the hospitalized subjects. This article reports a case of two large intra-adenoid cysts in the nasopharynx of one patient complicated by bilateral exudative otitis media. The successful outcome of the surgical treatment of this condition was achieved by means of endonasal marsupilization of the cysts under the laser-assisted endoscopic control with simultaneous bilateral shunting of the tympanic cavity.