Personal Experience | CMAC

Personal Experience

Pulmonary aspergilloma after previous COVID-19: a case report and a literature review

Pulmonary aspergillosis has always been considered as a disease that occurs in patients with certain risk factors for its development. The COVID-19 pandemic has shown that fungal complications are common in patients without aspergillosis risk …

Infective endocarditis caused by Klebsiella pneumoniae in a patient with non ST elevation myocardial infarction

A rare clinical case of native aortic valve infective endocarditis (IE) caused by Klebsiella pneumoniae in a 56-year old man without known risk factors predisposing to the development of IE is presented. Diagnosis of IE in this patient was a …

COVID-19 risk factors for mortality in hospitalized patients: results of a retrospective study

Objective. To identify risk factors for fatal outcome and COVID-19-associated liver damage in hospitalized adult patients with coronavirus infection. Materials and Methods. In a retrospective cohort study, 389 cases of patients with coronavirus infection complicated by bilateral viral pneumonia were studied. Demographic characteristics, clinical features of the course of the disease, anamnestic data, results of laboratory and instrumental methods of examination were analyzed and correlated with mortality. At the time of admission, the following were taken into account: fever, severity of the patient’s condition according to COVID-19 classification of severity, body mass index (BMI), oxygen saturation (SpO2), percentage of lung tissue damage according to computed tomography (CT).

Patterns of antimicrobial dispensing in community pharmacies in Russia during the COVID-19 pandemic

Objective. To evaluate the existing patterns of antimicrobials dispensing in community pharmacies during the COVID-19 pandemic. Materials and Methods. In a cross-sectional study conducted from October 2020 to January 2021 it was obtained the data on the major antimicrobials dispensing in community pharmacies in Moscow and four regions of Russian Federation: date of release, customer’s age and gender, drug name and formulation, the reason for the release (symptoms, preliminary or confirmed diagnosis), prescription-based supply or not/emergency releasing.

Anti-staphylococcal activity and cytocompatibility of lysostaphin

Objective. To study the antibacterial activity of lysostaphin against staphylococci various species, as well as its effect on the viability of Vero cells. Materials and Methods. Lysostaphin was obtained by genetic engineering. Purification of the protein was carried out on SP-sepharose, the purity was determined by electrophoresis in PAGE by Lamley. The susceptibility to lysostaphin of 9 species 175 strains of staphylococci was studied. Identification was performed by MALDI-TOF MS, antibiotic susceptibility by EUCAST (v.

Application of photodynamic inactivation against pathogens of urinar y tract infections

Photodynamic inactivation (PDI) is an alternative to antibiotic therapy method for biocidal action against microorganisms, which can be used for lithotripsy and sanitation of the bladder cavities. Objective. Selection of parameters and application PDI against uropathogenic microorganisms. Materials and Methods. In this study we used bacterial strains isolated from urine samples of patients. Differentiation media and biochemical plates were used for identification of microorganisms. The sensitivity of uropathogenic microorganisms to PDI was studied on pure cultures and in native urine.

Analysis of antibiotic prescriptions in patients with community-acquired pneumonia in clinical practice

Objective. To analyze new strategies for the treatment of community-acquired pneumonia (CAP) by age and assess treatment efficacy by age category based on real world data. Materials and Methods. A total of 612 patients (medical charts) with CAP treated in 3 hospitals during the 2017–2019 were included in the retrospective pharmacoepidemiological study. A retrospective analysis of antimicrobial therapy (AMT) administration in the treatment of CAP was performed. Results. Duration of hospital stay in CAP patients of young age was 10% shorter than in patients of any other age category.

Antimicrobial therapy of sepsis caused by carbapenem-resistant Klebsiella pneumoniae in patients with hematological malignancies

Objective. To compare the efficacy of ceftazidime-avibactam and aztreonam combination therapy with “standard” therapy in patients with hematological malignancies and sepsis, caused by carbapenemresistant K. pneumoniae. Materials and Methods. In this open, single center prospective-retrospective, cohort study, during 2019–2022, we analyze medical documentation of 81 hospitalized patients with hematologic malignancies and K. pneumoniae sepsis. K. pneumoniae was identified by MALDI-TOF mass-spectrometry; antimicrobial susceptibility testing was performed in accordance with current versions of EUCAST guidelines.

Effects of bacteriophages on biofilms formed by Staphylococcus aureus isolated from patients with orthopedic infection

Objective. To study effects of bacteriophages on biofilm formation and formed biofilm by S. aureus isolated from patients with orthopedic infection. Materials and Methods. A total of 50 clinical strains of S. aureus were tested. Species identification was performed by MALDI-TOF MS, antibiotic susceptibility – in accordance with the EUCAST v21. Isolates susceptibility to bacteriophages «Sextafag» (Microgen, Russia) was determined by MPA medium. The antibacterial activity of phages against S.

Microbiological monitoring of COVID-19 patients in the ICU: a prospective observational study

Objective. To study spectrum of pathogens and the time to colonization of respiratory samples in patients with severe and critical COVID-19 as well as to analyze incidence of nosocomial infections and structure of prescribed antibacterial drugs. Materials and Methods. The prospective observational study included patients aged 18 years and older with confirmed severe and critical COVID-19 from December 2021 to February 2022. During the first 48 hours and then every 2–3 days of hospitalization, a respiratory sample was collected: sputum, tracheal aspirate (if intubated), bronchoalveolar lavage (if bronchoscopy was performed) for microscopy and microbiological examination.