scholarly journals Pseudomonas aeruginosa Colonization in the Intensive Care Unit: Prevalence, Risk Factors, and Clinical Outcomes

2016 ◽  
Vol 37 (5) ◽  
pp. 544-548 ◽  
Author(s):  
Anthony D. Harris ◽  
Sarah S. Jackson ◽  
Gwen Robinson ◽  
Lisa Pineles ◽  
Surbhi Leekha ◽  
...  

OBJECTIVETo determine the prevalence of Pseudomonas aeruginosa colonization on intensive care unit (ICU) admission, risk factors for P. aeruginosa colonization, and the incidence of subsequent clinical culture with P. aeruginosa among those colonized and not colonized.METHODSWe conducted a cohort study of patients admitted to a medical or surgical intensive care unit of a tertiary care hospital. Patients had admission perirectal surveillance cultures performed. Risk factors analyzed included comorbidities at admission, age, sex, antibiotics received during current hospitalization before ICU admission, and type of ICU.RESULTSOf 1,840 patients, 213 (11.6%) were colonized with P. aeruginosa on ICU admission. Significant risk factors in the multivariable analysis for colonization were age (odds ratio, 1.02 [95% CI, 1.01–1.03]), anemia (1.90 [1.05–3.42]), and neurologic disorder (1.80 [1.27–2.54]). Of the 213 patients colonized with P. aeruginosa on admission, 41 (19.2%) had a subsequent clinical culture positive for P. aeruginosa on ICU admission and 60 (28.2%) had a subsequent clinical culture positive for P. aeruginosa in the current hospitalization (ICU period and post-ICU period). Of these 60 patients, 49 (81.7%) had clinical infections. Of the 1,627 patients not colonized on admission, only 68 (4.2%) had a subsequent clinical culture positive for P. aeruginosa in the current hospitalization. Patients colonized with P. aeruginosa were more likely to have a subsequent positive clinical culture than patients not colonized (incidence rate ratio, 6.74 [95% CI, 4.91–9.25]).CONCLUSIONSPrediction rules or rapid diagnostic testing will help clinicians more appropriately choose empirical antibiotic therapy for subsequent infections.Infect Control Hosp Epidemiol 2016;37:544–548

2009 ◽  
Vol 24 (4) ◽  
pp. 625.e9-625.e14 ◽  
Author(s):  
Guilherme H.C. Furtado ◽  
Maria D. Bergamasco ◽  
Fernando G. Menezes ◽  
Daniel Marques ◽  
Adriana Silva ◽  
...  

2017 ◽  
Vol 62 (1) ◽  
Author(s):  
Natalia Blanco ◽  
Anthony D. Harris ◽  
Clare Rock ◽  
J. Kristie Johnson ◽  
Lisa Pineles ◽  
...  

ABSTRACT Multidrug-resistant (MDR) Acinetobacter baumannii, associated with broad-spectrum antibiotic use, is an important nosocomial pathogen associated with morbidity and mortality. This study aimed to investigate the prevalence of MDR A. baumannii perirectal colonization among adult patients upon admission to the intensive care unit (ICU) over a 5-year period and to identify risk factors and outcomes associated with colonization. A retrospective cohort analysis of patients admitted to the medical intensive care unit (MICU) and surgical intensive care unit (SICU) at the University of Maryland Medical Center from May 2005 to September 2009 was performed using perirectal surveillance cultures on admission. Poisson and logistic models were performed to identify associated risk factors and outcomes. Four percent of the cohort were positive for MDR A. baumannii at ICU admission. Among patients admitted to the MICU, those positive for MDR A. baumannii at admission were more likely to be older, to have received antibiotics before ICU admission, and to have shorter length of stay in the hospital prior to ICU admission. Among patients admitted to the SICU, those colonized were more likely to have at least one previous admission to our hospital. Patients positive for MDR A. baumannii at ICU admission were 15.2 times more likely to develop a subsequent positive clinical culture for A. baumannii and 1.4 times more likely to die during the current hospitalization. Risk factors associated with MDR A. baumannii colonization differ by ICU type. Colonization acts as a marker of disease severity and of risk of developing a subsequent Acinetobacter infection and of dying during hospitalization. Therefore, active surveillance could guide empirical antibiotic selection and inform infection control practices.


2021 ◽  
Vol 6 (1) ◽  
pp. e000564
Author(s):  
Muhammad Asghar Ali ◽  
Madiha Hashmi ◽  
Waqas Ahmed ◽  
Syed Amir Raza ◽  
Muhammad Faisal Khan ◽  
...  

BackgroundTo evaluate the incidence and modifiable risk factors of delirium in surgical intensive care unit (SICU) of tertiary care hospital in a low-income and middle-income country.MethodsWe conducted a single cohort observational study in patients over 18 years of age who were admitted to the SICU for >24 hours in Aga Khan University Hospital from January to December 2016. Patients who had pre-existing cognitive dysfunction were excluded. Intensive Care Delirium Screening Checklist was used to assess delirium. Incidence of delirium was computed, and univariate and multivariable analyses were performed to observe the relationship between outcome and associated factors.ResultsThe average patient age was 43.29±17.38 and body mass index was 26.25±3.57 kg/m2. Delirium was observed in 19 of 87 patients with an incidence rate of 21.8%. Multivariable analysis showed chronic obstructive pulmonary disease, pain score >4 and hypernatremia were strong predictors of delirium. Midazolam (adjusted OR (aOR)=7.37; 95% CI 2.04 to 26.61) and propofol exposure (aOR=7.02; 95% CI 1.92 to 25.76) were the strongest independent predictors of delirium while analgesic exposures were not statistically significant to predict delirium in multivariable analysis.ConclusionDelirium is a significant risk factor of poor outcome in SICU. There was an independent association between pain, sedation, COPD, hypernatremia and fever in developing delirium.Level of evidenceIV.


2009 ◽  
Vol 13 (3) ◽  
pp. 173-176 ◽  
Author(s):  
Carlos Magno Castelo Branco Fortaleza ◽  
Lígia Castellon Figueiredo ◽  
Carolina Contador Beraldo ◽  
Edson Carvalho de Melo ◽  
Patrícia Maria Sales Póla ◽  
...  

2021 ◽  
Author(s):  
Emilie Occhiali ◽  
Pierre Prolange ◽  
Florence Cassiau ◽  
Frédéric Roca ◽  
Benoit Veber ◽  
...  

CHEST Journal ◽  
2005 ◽  
Vol 128 (4) ◽  
pp. 379S
Author(s):  
Stephen B. Heitner ◽  
Glenn Eiger ◽  
Robert Fischer ◽  
Emma C. Scott ◽  
Aba Somers

1984 ◽  
Vol 5 (9) ◽  
pp. 427-430 ◽  
Author(s):  
M. Anita Barry ◽  
Donald E. Craven ◽  
Theresa A. Goularte ◽  
Deborah A. Lichtenberg

Abstract During a recent investigation in our surgical intensive care unit, we found that several bottles of the antiseptic handwashing soap, OR Scrub®, were contaminated with Serratia marcescens. OR Scrub® contains 1% triclosan, lanolin, and detergents. The antimicrobial efficacy of OR Scrub® was examined in vitro using serial two-fold dilutions of soap inoculated with various concentrations of different nosocomial pathogens. The minimal bactericidal concentration (MBC) of OR Scrub® against Pseudomonas aeruginosa and several strains of S. marcescens was ≤1:2 By comparison, a non-antiseptic soap from the same manufacturer (Wash®) and 4% chlorhexidine (Hibiclens®) had MBCs for all strains tested of at least 1:64. Time-kill curves confirmed the findings of the initial experiments.This is the first report of extrinsic contamination of antiseptic soap containing triclosan. No infections could be attributed to the contaminated soap, but sporadic outbreaks of Serratia have occurred in the intensive care unit with no identifiable source. Although there have been few studies on the impact of antiseptic soap in reducing nosocomial infection, we question whether a soap with the limitations of OR Scrub® should be used in intensive care units or operating rooms.


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