scholarly journals Assessment of the intensity of the epidemic process of ventilator-associated respiratory tract infections in patients of surgical intensive care unit

2015 ◽  
Vol 20 (2) ◽  
pp. 37-42
Author(s):  
O. A Orlova ◽  
V. G Akimkin

The urgency of the problem of ventilator-associated respiratory tract infections is stipulated by the ever-increasing number of diseases caused by nosocomial polyantibiotic-resistant strains and high mortality rate. Purpose - to give an assessment of the intensity of the epidemic process of ventilator-associated respiratory tract infections in patients of the surgical intensive care unit. In the base of the analysis there were put the results of a comprehensive epidemiological, clinical, and instrumental study of 137 patients (100 patients with severe injuries and 37 patients with diseases of the abdomen and thorax) with ventilator - associated respiratory tract infections received medical treatment in the surgical intensive care unit. The proportion of respiratory tract infections in the structure of nosocomial infections in these patients varies from 34.6 to 58.9 %, in that there was revealed the prevalence of nosocomial pneumonias (63.5 %). When using a ventilator with viral-bacterial filters signs of nosocomial respiratory tract infections were manifested on the 10th day and later in 50.8 % of patients. In cases with the duration of artificial ventilation more than 10 days the risk of the development of these infections in patients with diseases of the abdominal cavity and thorax was 2.1 times higher than in patients with injuries. There was shown the necessity of the development of a set of measures for the prevention of nosocomial infections of the respiratory tract.

2020 ◽  
Author(s):  
Azadeh Ebrahimzadeh ◽  
Elaheh Allahyari ◽  
Fatemeh Nikoomanesh ◽  
Majid Zare_bidaki

Abstract Background:The aim of this study was to investigate and then to compare the prevalence of nosocomial infections (NIs) in the patients admitted to the surgery and internal Intensive Care Units(ICU) as well as studying the risk factors involved.Methods:In this cross-sectional descriptive, patients admitted to ICUs were studied over a year .Clinical data of patients, including demographic information, length of stay, underlining disease, the rate of patient with NIs and distribution of NIs sites and pathogens were collected. Univariate and multivariate logestic regression were carried out to determine the factors associated with NIs.Results:A total of 1018 patients were studiedincluding surgical ICU (n = 665) and internal ICU (n = 353). The incidence rate of NI in surgical and internal ICUs was 67(10.1%) and 96(27.2%), respectively. The most common NI in the internal ICU were respiratory tract infections( RTI ,46.9%) and urinary tract infections (UTI, 37.5%), while in the surgical ICU, the most common infections were respiratory tract infections (RTI, 38.3%) and surgical-site infections (SSI, 22.0%), respectively. The major factors the length of stay and the use of nasogastric intubation (NG tubes) were associated with NIs in both ICUs.Conclusions:The incidence of infections in the internal ICU were more than the surgical ICU. Age, underlying diseases, the long stay, used of ventilator and NG tube were factors associated with NIs rate in internal ICU.Trial registration:This study was the result of two research works with ethics code (IR.BUMS.REC.1394-17 and IR.BUMS.REC.1394-27).


2021 ◽  
Vol 74 (3-4) ◽  
pp. 112-116
Author(s):  
Marina Pandurov ◽  
Izabella Fabri-Galambos ◽  
Andjela Opancina ◽  
Anna Uram-Benka ◽  
Goran Rakic ◽  
...  

Introduction. Nosocomial infections are a common complication in patients hospitalized in intensive care units. The aims of this research were to examine the incidence of nosocomial infections in patients admitted to the pediatric surgical intensive care unit, the impact of hospital length of stay and type of surgical disease on the incidence of nosocomial infections, the frequency of microorganisms causing nosocomial infections and their antibiotic susceptibility profile. Material and Methods. Data on 50 subjects were extracted from the database. The following data were taken from the medical histories of the examinees: age, sex, diagnosis, number of days at the hospital before admission to the intensive care unit, number of days in the intensive care unit, levels of C-reactive protein, applied antimicrobial drugs, isolated microorganisms and their susceptibility to antibiotics. Results. The incidence of nosocomial infections in the study period was 52%. Patients who developed nosocomial infection remained longer in the intensive care unit than those who did not develop it (p = 0.003). Patients with the diagnosis of acute abdomen had a statistically significantly higher incidence of nosocomial infections compared to other patients (p = 0.001). Gram-negative bacteria were the most commonly isolated pathogens (46.8%). Acinetobacter baumanii proved to be the most resistant species in this study, since 80% of the strains did not show sensitivity to any of the tested antibiotics. Conclusion. Nosocomial infections are present in slightly more than half of the patients treated at the pediatric surgical intensive care unit. Patients who developed nosocomial infections stayed longer in the pediatric surgical intensive care unit, which had negative consequences for their health and treatment costs.


2015 ◽  
Vol 20 (1) ◽  
pp. 8-13
Author(s):  
O. A Orlova ◽  
V. G Akimkin

Rationale The relevance of ventilator-associated respiratory tract infections in severe injury patients (SIP) is associated with both features of causative pathogens and the initial severity of the state of patients. Among causative pathogens nosocomial flora is dominant. Purpose - to perform an analysis of the microbiological monitoring of ventilator-associated respiratory tract infections in SIP. The analysis was based on the results of a prospective epidemiological, clinical, and instrumental study of 100 SIP with ventilator-associated respiratory tract infections, stayed in the surgical intensive care unit. The proportion of ventilator-associated respiratory infections in the structure of nosocomial infections in these patients is between 90 - 95%, at that there was revealed the prevalence of nosocomial pneumonia (61%). Ventilator-associated respiratory tract infection most commonly occurs during the first 10 days of mechanical ventilation. The prevailing flora was represented by Gram negative Acinetobacter baumamnnii (40.3 ± 2.1%) and Pseudomonas aeruginosa (38.4% ± 3.2%). Isolated microorganisms possessed multiple antibiotic resistance, with the greatest extent to aminoglycosides - 69.5%, fluoroquinolones - 40.3%, penicillin - 37.6%; cephalosporins (third generation) - 33.8%. There is noted marked preponderance of microbial associations compared with monocultures 57.1 ± 5.3%.


2009 ◽  
Vol 30 (10) ◽  
pp. 952-958 ◽  
Author(s):  
Fernando Bellissimo-Rodrigues ◽  
Wanessa Teixeira Bellissimo-Rodrigues ◽  
Jaciara Machado Viana ◽  
Gil Cezar Alkmim Teixeira ◽  
Edson Nicolini ◽  
...  

Objective.To evaluate the effectiveness of the oral application of a 0.12% solution of Chlorhexidine for prevention of respiratory tract infections among intensive care unit (ICU) patients.Design.The study design was a double-blind, randomized, placebo-controlled trial.Setting.The study was performed in an ICU in a tertiary care hospital at a public university.Patients.Study participants comprised 194 patients admitted to the ICU with a prospective length of stay greater than 48 hours, randomized into 2 groups: those who received Chlorhexidine (n = 98) and those who received a placebo (n = 96).Intervention.Oral rinses with Chlorhexidine or a placebo were performed 3 times a day throughout the duration of the patient's stay in the ICU. Clinical data were collected prospectively.Results.Both groups displayed similar baseline clinical features. The overall incidence of respiratory tract infections (RR, 1.0 [95% confidence interval [CI], 0.63-1.60]) and the rates of ventilator-associated pneumonia per 1,000 ventilator-days were similar in both experimental and control groups (22.6 vs 22.3; P = .95). Respiratory tract infection-free survival time (7.8 vs 6.9 days; P = .61), duration of mechanical ventilation (11.1 vs 11.0 days; P = .61), and length of stay (9.7 vs 10.4 days; P = .67) did not differ between the Chlorhexidine and placebo groups. However, patients in the Chlorhexidine group exhibited a larger interval between ICU admission and onset of the first respiratory tract infection (11.3 vs 7.6 days; P = .05). The chances of surviving the ICU stay were similar (RR, 1.08 [95% CI, 0.72-1.63]).Conclusion.Oral application of a 0.12% solution of Chlorhexidine does not prevent respiratory tract infections among ICU patients, although it may retard their onset.


1995 ◽  
Vol 8 (1) ◽  
pp. 22-33 ◽  
Author(s):  
V G Hemming ◽  
G A Prince ◽  
J R Groothuis ◽  
G R Siber

Respiratory syncytial virus (RSV) is an important community and nosocomial respiratory pathogen for infants and young children. RSV causes especially severe disease in the prematurely born or those with chronic cardiopulmonary diseases. Elderly persons and those with T-cell deficiencies, such as bone marrow transplant recipients, are also at high risk for serious lower respiratory tract infections. To date, prevention of RSV infections by vaccination has proven elusive and no preventive drugs exist. Studies in animals and humans have shown that the lower respiratory tract can be protected from RSV infection by sufficient circulating RSV neutralizing antibody levels. Recently, an RSV hyperimmune immune globulin (RSVIG) was developed and tested for the prevention of RSV infections or reduction of disease severity. Passive immunization of high-risk children with RSVIG during the respiratory disease season effected significant reductions in RSV infections, hospitalizations, days of hospitalization, intensive care unit admissions, days in the intensive care unit, and ribavirin use. Studies in cotton rats and owl monkeys show that RSV infections can also be treated with inhalation of immune globulin at doses substantially smaller than required for parenteral treatment. Therapeutic trials of parenteral RSVIG have been completed and are pending analysis. The use of polyclonal, hyperimmune globulins and perhaps human monoclonal antibodies provides an additional approach to the prevention and perhaps the treatment of certain viral lower respiratory tract infections such as those caused by RSV.


2007 ◽  
Vol 28 (11) ◽  
pp. 1247-1254 ◽  
Author(s):  
Lisa S. Young ◽  
Allison L. Sabel ◽  
Connie S. Price

Objectives.To determine risk factors for acquisition of multidrug-resistant (MDR)Acinetobacter baumanniiinfection during an outbreak, to describe the clinical manifestations of infection, and to ascertain the cost of infection.Design.Case-control study.Setting.Surgical intensive care unit in a 400-bed urban teaching hospital and level 1 trauma center.Patients.Case patients received a diagnosis of infection due toA. baumanniiisolates with a unique pattern of drug resistance (ie, susceptible to imipenem, variably susceptible to aminoglycosides, and resistant to all other antibiotics) between December 1, 2004, and August 31, 2005. Case patients were matched 1 : 1 with concurrently hospitalized control patients. Isolates' genetic relatedness was established by pulsed-field gel electrophoresis.Results.Sixty-seven patients met the inclusion criteria. Case and control patients were similar with respect to age, duration of hospitalization, and Charlson comorbidity score. MDRA. baumanniiinfections included ventilator-associated pneumonia (in 56.7% of patients), bacteremia (in 25.4%), postoperative wound infections (in 25.4%), central venous catheter-associated infections (in 20.9%), and urinary tract infections (in 10.4%). Conditional multiple logistic regression was used to determine statistically significant risk factors on the basis of results from the bivariate analyses. The duration of hospitalization and healthcare charges were modeled by multiple linear regression. Significant risk factors included higher Acute Physiology and Chronic Health Evaluation II score (odds ratio [OR], 1.1 per point increase;P= .06), duration of intubation (OR, 1.4 per day intubated;P<.01), exposure to bronchoscopy (OR, 22.7;P= .03), presence of chronic pulmonary disease (OR, 77.7;P= .02), receipt of fluconazole (OR, 73.3;P<.01), and receipt of levofloxacin (OR, 11.5;P= .02). Case patients had a mean of $60,913 in attributable excess patient charges and a mean of 13 excess hospital days.Interventions.Infection control measures included the following: limitations on the performance of pulsatile lavage wound debridement, the removal of items with upholstered surfaces, and the implementation of contact isolation for patients with suspected MDRA. baumanniiinfection.Conclusions.This large outbreak of infection due to clonal MDRA. baumanniicaused significant morbidity and expense. Aerosolization of MDRA. baumanniiduring pulsatile lavage debridement of infected wounds and during the management of respiratory secretions from colonized and infected patients may promote widespread environmental contamination. Multifaceted infection control interventions were associated with a decrease in the number of MDRA. baumanniiisolates recovered from patients.


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