[Diagnosis of benign laryngeal tumors using neural network]. / Diagnostika dobrokachestvennykh novoobrazovanii gortani s primeneniem neiroseti.

The article describes our experience in developing and training an artificial neural network based on artificial intelligence algorithms for recognizing the characteristic features of benign laryngeal tumors and variants of the norm of the larynx based on the analysis of laryngoscopy pictures obtained during the examination of patients. During the preparation of data for training the neural network, a dataset was collected, labeled and loaded, consisting of 1471 images of the larynx in digital formats (jpg, bmp). Next, the neural network was trained and tested in order to recognize images of the norm and neoplasms of the larynx. The developed and trained artificial neural network demonstrated an accuracy of 86% in recognizing of benign laryngeal tumors and variants of the norm of the larynx. The proposed technology can be further used in practical healthcare to control and improve the quality of diagnosis of laryngeal pathologies.

[Epidemiological features of laryngeal papillomatosis in adults in Moscow]. / Epidemiologicheskie osobennosti papillomatoza gortani u vzroslykh v Moskve.

OBJECTIVE: To evaluate the incidence of laryngeal papillomatosis (LP) and LP recurrence in adults and to determine the risk factors for the development of LP recurrence in adults in Moscow. To solve the tasks set, a survey of patients carried out, including the collection of complaints and anamnesis, a standard examination of the ENT organs, an assessment of the condition of the larynx, and a histological examination. MATERIAL AND METHODS: We conducted a retrospective analysis of the case histories of 299 patients with LP observed and treated at the Sverzhevsky Research and Clinical Institute of Otorhinolaryngology in the period 2010-2020. RESULTS: On average, over the entire study period, the prevalence of PG was 17.80%. It was found that out of 299 patients, 69.6% (n=208) had a relapse of LP. Papilloma of the larynx were more often localized in the glottis. 275 (92%) patients had a widespread form of LP. LP recurrences were significantly more common in women and in patients with an existing cicatricle process in the larynx. The relapse rate was higher in non-smokers (73.5% vs 47.8%; p<0.001). Although the recurrence rate was higher in patients with non-voice occupations (70.6% vs. 52.9%), there was no statistically significant association between relapses and the vocal professions (p=0.125). CONCLUSION: As a result of the study, a number of risk factors for laryngeal papillomatosis recurrent have been identified, and their study should be continued.

[Application of the biofeedback method in the treatment of dysphonia (literature review)]. / Primenenie metoda biologicheskoi obratnoi svyazi pri lechenii disfonii (obzor literatury).

The literature review describes the experience of using the biofeedback method in the treatment of dysphonia of various etiologies. Indications for the use of this method and its effectiveness in a certain contingent of patients are discussed.

[Chronic catarrhal laryngitis in singers]. / Khronicheskii kataral'nyi laringit u vokalistov.

The article deals with optimization of treatment policy for singers with chronic catarrhal laryngitis. The survey sample is 51 singers with chronic catarrhal laryngitis of the age from 29 to 54 and the length of time worked from 8 to 22 years. The following methods are used: anamnesis, microbiological investigation, voice evaluation according to Visual Analog Scale (VAS), microlaryngoscopy, videolaryngostroboscopy, voice acoustic analysis (MDVP Kay Pentax system), statistical processing of results. It is shown that the cause of chronic catarrhal laryngitis in professional singers is non-bacterial irritants that provoke the appearance of an inflammatory process in the larynx, as well as uncontrolled use of drugs that irritate and dry out the mucous membrane and imperfect vocal technique. Pathogenic flora as an etiologic factor in the occurrence of laryngitis does not play an important role. A comprehensive treatment scheme for chronic catarrhal laryngitis using inhalation therapy and drugs that improve trophic processes in the laryngeal mucosa, which allows to increase the effectiveness of treatment and achieve stable remission of the disease, is suggested.

[Etiopathogenetic treatment of professional singers with vocal nodules]. / Étiopatogeneticheskoe lechenie uzelkov golosovykh skladok u professional'nykh vokalistov.

The article deals with optimization of treatment policy for professional singers. The survey sample is 67 singers with vocal nodules of the age from 24 to 42 and the length of time worked from 3 to 28 years. The following methods are used: questionnaire survey (professional anamnesis, voice evaluation according to Visual Analog Scale (VAS), Spielberg-Hanin test), microlaryngoscopy, video endolaringostroboscopy, voice acoustic analysis (MDVP Kay Pentax system). The algorithm and evaluation criteria of vocal nodules treatment efficiency for the singers taking into account the specific character of their professional activity are proposed.

[The clinical and functional condition of the larynx in the patients of the elder age group presenting with chronic oedematous polypoidal laryngitis]. / Kliniko-funktsional'noe sostoianie gortani u patsientov starshei vozrastnoi gruppy s khronicheskim otechno-polipoznym laringitom.

This article was designed to report the results of the evaluation of the clinical and functional condition of the larynx in the patients of the elder age group presenting with chronic oedematous polypoidal laryngitis before and after their surgical treatment. A total of 60 patients at the age from 60 to 72 years were available for the examination; all of them had a concomitant somatic or ENT pathology. The clinical and functional conditions of the larynx in the patients of the elder age group were studied, with special reference to those suffering from chronic oedematous polypoidal laryngitis before the surgical intervention, that determined the overall clinical picture of the disease characterized in the first place by the predominance of the severe polypoid process with the combination of the organic and functional laryngeal pathology. The specific clinical and functional features of the larynx were identified after the surgical treatment that exerted the appreciable influence on the postoperative course of the disease and the duration of dysphonia. The peculiarities of postoperative laryngitis are described. Its catarrhal form was diagnosed in 42% of the patients. The strong inflammatory reaction with exudation and formation of fibrin films was documented in 58% of the patients while 83% of them exhibited formation of the functional component of dysphonia that required the application of the additional therapeutic measures for the complete restoration of the vocal function taking into consideration the age-related alteration of the larynx together with the long-term postoperative observation of the patients.

[The comparative assessment of the vocal function in the professional voice users and non-occupational voice users in the late adulthood]. / Sravnitel'naia otsenka golosovoi funktsii u professionalov golosa pozhilogo vozrasta i lits negolosovykh professii.

The objective of the present study was to evaluate the clinical and functional condition of the voice apparatus in the elderly patients and to elaborate recommendations for the prevention of disturbances of the vocal function in the professional voice users. This comprehensive study involved 95 patients including the active professional voice users (n=48) and 45 non-occupational voice users at the age from 61 to 82 years with the employment history varying from 32 to 51 years. The study was designed to obtain the voice characteristics by means of the subjective auditory assessment, microlaryngoscopy, video laryngostroboscopy, determination of maximum phonation time (MPT), and computer-assisted acoustic analysis of the voice with the use of the MDVP Kay Pentaxy system. The level of anxiety of the patients was estimated based on the results of the HADS questionnaire study. It is concluded that the majority of the disturbances of the vocal function in the professional voice users have the functional nature. It is concluded that the method of neuro-muscular electrophonopedic stimulation (NMEPS) of laryngeal muscles is the method of choice for the diagnostics of the vocal function of the voice users in the late adulthood. It is recommended that the professional vocal load for such subjects should not exceed 12-14 hours per week. Rational psychotherapy must constitute an important component of the system of measures intended to support the working capacity of the voice users belonging to this age group.