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Relevance. Cancer stands as a prominent cause of untimely mortality in young and middle-aged individuals (aged 20-64 years). The inquiry into the extent of influence exerted by external risk factors on the emergence of oral mucosal oncopathology remains pertinent. Equally crucial is understanding the intricate interplay among different groups of factors and their effects.Research objective. To determine the extent of influence exerted by various endogenous and exogenous risk factors on the development of malignant oral mucosal lesions, based on contemporary literature data, and to assess their interrelationships.Materials and methods. The research material was the analysis of literary data from bibliographic sources – Elsevier, PubMed, Elibrary, Google Academy, Medline, Cyberleninka. The study included literature sources in Russian and English. The second part of the review combines studies devoted to the study of the influence of exogenous controlled factors on the risk of developing malignant neoplasms of the oral mucosa.Results. Through contemporary literature analysis, the potential and scale of influence attributed to controllable exogenous risk factors in the development of malignant oral mucosal lesions have been established. Notably, significant impact has been associated with smoking and alcohol consumption. Additionally, adverse socio-economic conditions, environmental factors, and dietary habits have been identified as contributors to an elevated cancer risk. Throughout this investigation, it became evident that literature sources frequently highlight the influence of individual factors without adequately considering potential synergies, antagonistic effects, or interactions with endogenous factors. Moreover, certain factors pivotal to the carcinogenesis of oral cavity tumors remain inadequately researched.Conclusion. To facilitate efficient primary and secondary prevention measures, it is imperative to advance and refine a multidisciplinary research methodology. This approach should aim to comprehensively identify the collective impact of diverse groups of risk factors on the progression of malignant oral mucosal lesions.
Relevance. Cancer stands as a prominent cause of untimely mortality in young and middle-aged individuals (aged 20-64 years). The inquiry into the extent of influence exerted by external risk factors on the emergence of oral mucosal oncopathology remains pertinent. Equally crucial is understanding the intricate interplay among different groups of factors and their effects.Research objective. To determine the extent of influence exerted by various endogenous and exogenous risk factors on the development of malignant oral mucosal lesions, based on contemporary literature data, and to assess their interrelationships.Materials and methods. The research material was the analysis of literary data from bibliographic sources – Elsevier, PubMed, Elibrary, Google Academy, Medline, Cyberleninka. The study included literature sources in Russian and English. The second part of the review combines studies devoted to the study of the influence of exogenous controlled factors on the risk of developing malignant neoplasms of the oral mucosa.Results. Through contemporary literature analysis, the potential and scale of influence attributed to controllable exogenous risk factors in the development of malignant oral mucosal lesions have been established. Notably, significant impact has been associated with smoking and alcohol consumption. Additionally, adverse socio-economic conditions, environmental factors, and dietary habits have been identified as contributors to an elevated cancer risk. Throughout this investigation, it became evident that literature sources frequently highlight the influence of individual factors without adequately considering potential synergies, antagonistic effects, or interactions with endogenous factors. Moreover, certain factors pivotal to the carcinogenesis of oral cavity tumors remain inadequately researched.Conclusion. To facilitate efficient primary and secondary prevention measures, it is imperative to advance and refine a multidisciplinary research methodology. This approach should aim to comprehensively identify the collective impact of diverse groups of risk factors on the progression of malignant oral mucosal lesions.
Background. Infectious complications are the most frequent and severe among all complications in cancer patients. The development of fungal-bacterial infections is particularly difficult. The aim was to develop an etiological description for the causative agents of infectious complications in oncological patients. Materials and methods. The study was conducted from January, 2020 to December (inclusive both dates), 2021. 3662 hospitalized patients (men and women) aged from 1 to 85 years with clinical manifestations of an infection were examined. The traditional microbiological method was used to clarify the etiology of the infectious process and to verify the pathogen. Phenotypic and real-time PCR methods were used for detection of carbapenemase and ESBL production. Results. The organs of the respiratory system, skin, soft tissues, and blood are most susceptible to infectious complications. In the etiology of infectious complications, the leading place is occupied by gram-negative bacteria. The conducted microbiological study made it possible to establish that resistance to cephalosporins and carbapenems in enterobacteria is realized through various resistance mechanisms. Extended-spectrum β-lactamases and carbapenemases are particularly relevant and concerning. Monitoring revealed the growth of carbapenemase-producing isolates of Klebsiella pneumoniae (34.9%), the spread of carbapenemase among Escherichia coli strains (5.1%), the increase in the spread of Acinetobacter baumannii strains with the production of NDM groups (32.6%). Conclusion. Prescription of antibacterial drugs should be based only on the results of microbiological diagnostics. The current situation requires modern methods of microbiological diagnostics: the use of only up-to-date (periodically updated) criteria for determining sensitivity to antimicrobial drugs, as well as the introduction of phenotypic tests that provide reliable information without molecular genetic methods.
The regimens of anticancer therapy have been intensified and methods of high-dose chemotherapy (HDCT) have been introduced for recent years which made it possible to achieve significant progress in the results of tumor treatments. Intensification of chemotherapy regimens in cancer patients leads to the emergence of risk factors of invasive candidiasis (IC) development: agranulocytosis, disruption of the integrity of the mucous membranes, prolonged use of CVC, repeated antibiotic therapy, long-term parenteral nutrition. Thus, intensification of anticancer therapy may be accompanied by an increase in infection-mediated mortality.IC is the most common invasive mycosis in Russia. More than 11 thousand cases of IC occur in our country every year. The frequency IC in Russia is 8.29 per 100 thousand of the population, which corresponds to the results of the LIFE study in European countries where this indicator varies from 2.2 to 11 per 100 thousand of the population. There are no clinical signs or symptoms specific for IC. It develops in patients with concomitant diseases, which significantly complicates the diagnosis. In this regard, an urgent issue is to improve the diagnosis of candidal infectious complications in cancer patients in order to optimize treatment by studying serological markers that have the greatest value in the diagnosis of infectious complications in cancer patients.
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