Comparative aspects of the influence of exogenous risk factors on the occurrence of nosocomial pneumonia among patients infected with COVID-19 in intensive care units and surgical and therapy departments of a large multidisciplinary hospital

Abstract

The problem of lung damage in viral infection caused by COVID-19 due to high frequency is relevant for anesthesiologists, resuscitators and epidemiologists. According to scientific research, when a patient is on a ventilator, the risk of an adverse outcome can reach 42 %. This is determined by the widespread use of invasive diagnostic manipulations in patients with COVID-19, which may be associated with bacterial and viral contamination of the environment. This article presents the results of a study of the influence of exogenous risk factors on the development of nosocomial pneumonia in 164 patients infected with COVID-19 in intensive care units and departments of surgical and therapeutic profile of a large multidisciplinary hospital. The number of exogenous risk factors for nosocomial pneumonia among patients infected with COVID-19 in intensive care units exceeded by 7.3 times their presence in surgical departments with a predominance of artificial lung ventilation (90.2 %), tracheostomy (87.8 %), oxygen therapy (68.3 %). The negative impact was determined by the untimely change of air filters during artificial lung ventilation — 16.2 % and tracheal sanitation –8.1 %, poor hand treatment of medical personnel,before tracheal sanitation — 39.2 %.