scholarly journals Risk Factors for Carbapenemase-Producing Enterobacterales Infection or Colonization in a Korean Intensive Care Unit: A Case–Control Study

Antibiotics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 680
Author(s):  
Young Ah Kim ◽  
Se Ju Lee ◽  
Yoon Soo Park ◽  
Yeo Jin Lee ◽  
Jeong Hwa Yeon ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Klebsiella Pneumoniae ◽  
Pulmonary Disease ◽  
Case Control Study ◽  
Significant Risk ◽  
Case Control ◽  
Chronic Pulmonary Disease ◽  
Control Study

The purpose of this study is to identify the factors related to the infection and/or colonization of carbapenemase-producing Enterobacterales (CPE) based on clinical and microbiological data for patients in the intensive care unit (ICU). All patients admitted to medical ICU were screened for CPE on admission and weekly, and this 1:2 case–control study included patients with CPE identified by screening or clinical cultures from 2017 to 2018. The clonal relatedness was evaluated by pulsed-field gel electrophoresis (PFGE). A total of 45 CPE patients were identified with a prevalence of 3.8%. The most frequent organism was Klebsiella pneumoniae (69%) and the carbapenemases belonged to the class A Klebsiella pneumoniae Carbapenemase (KPC-2) (87%), class B New Delhi Metallo-β-lactamase (NDM) (11%), and Imipenemase (IMP-1) (2%) strains. The PFGE profiles showed two large clustered groups of KPC-2-producing K. pneumoniae. In the multivariate analysis, pneumonia/chronic pulmonary disease, previous fluoroquinolone use, and previous use of nasogastric tube were the significant risk factors for CPE infection or colonization in ICU-admitted patients. Critical illness and underlying medical conditions such as pneumonia/chronic pulmonary disease, antimicrobial selective pressure, and the use of a medical device are identified as risk factors for CPE infection or colonization in ICU. Person to person transmission also contributed.

scholarly journals Risk Factors for Candidemia After Open Heart Surgery: Results From a Multicenter Case–Control Study

2020 ◽  
Vol 7 (8) ◽  
Author(s):  
Daniele Roberto Giacobbe ◽  
Antonio Salsano ◽  
Filippo Del Puente ◽  
Ambra Miette ◽  
Antonio Vena ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Heart Surgery ◽  
Case Control Study ◽  
Open Heart Surgery ◽  
Case Control ◽  
Open Heart ◽  
Previous Therapy ◽  
Control Study

Abstract Background Candida species are among the most frequent causative agents of health care–associated bloodstream infections, with mortality >40% in critically ill patients. Specific populations of critically ill patients may present peculiar risk factors related to their reason for intensive care unit admission. The primary objective of the present study was to assess the predictors of candidemia after open heart surgery. Methods This retrospective, matched case–control study was conducted in 8 Italian hospitals from 2009 to 2016. The primary study objective was to assess factors associated with the development of candidemia after open heart surgery. Results Overall, 222 patients (74 cases and 148 controls) were included in the study. Candidemia developed at a median time (interquartile range) of 23 (14–36) days after surgery. In multivariable analysis, independent predictors of candidemia were New York Heart Association class III or IV (odds ratio [OR], 23.81; 95% CI, 5.73–98.95; P < .001), previous therapy with carbapenems (OR, 8.87; 95% CI, 2.57–30.67; P = .001), and previous therapy with fluoroquinolones (OR, 5.73; 95% CI, 1.61–20.41; P = .007). Crude 30-day mortality of candidemia was 53% (39/74). Septic shock was independently associated with mortality in the multivariable model (OR, 5.64; 95% CI, 1.91–16.63; P = .002). No association between prolonged cardiopulmonary bypass time and candidemia was observed in this study. Conclusions Previous broad-spectrum antibiotic therapy and high NYHA class were independent predictors of candidemia in cardiac surgery patients with prolonged postoperative intensive care unit stay.

Risk Factors for Staphylococcus aureus Acquisition in the Neonatal Intensive Care Unit: A Matched Case-Case-Control Study

2017 ◽  
Vol 39 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Matthew C. Washam ◽  
Andrea Ankrum ◽  
Beth E. Haberman ◽  
Mary Allen Staat ◽  
David B. Haslam
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Staphylococcus Aureus ◽  
Intensive Care ◽  
Neonatal Intensive Care ◽  
Case Control Study ◽  
Case Control ◽  
Entire Cohort ◽  
Matched Case ◽  
Control Study

OBJECTIVETo determine risk factors independent of length of stay (LOS) for Staphylococcus aureus acquisition in infants admitted to the neonatal intensive care unit (NICU).DESIGNRetrospective matched case–case-control study.SETTINGQuaternary-care referral NICU at a large academic children’s hospital.METHODSInfants admitted between January 2014 and March 2016 at a level IV NICU who acquired methicillin resistant (MRSA) or susceptible (MSSA) S. aureus were matched with controls by duration of exposure to determine risk factors for acquisition. A secondary post hoc analysis was performed on the entire cohort of at-risk infants for risk factors identified in the primary analysis to further quantify risk.RESULTSIn total, 1,751 infants were admitted during the study period with 199 infants identified as having S. aureus prevalent on admission. There were 246 incident S. aureus acquisitions in the remaining at-risk infant cohort. On matched analysis, infants housed in a single-bed unit were associated with a significantly decreased risk of both MRSA (P=.03) and MSSA (P=.01) acquisition compared with infants housed in multibed pods. Across the entire cohort, pooled S. aureus acquisition was significantly lower in infants housed in single-bed units (hazard ratio,=0.46; confidence interval, 0.34–0.62).CONCLUSIONSNICU bed design is significantly associated with S. aureus acquisition in hospitalized infants independent of LOS.Infect Control Hosp Epidemiol 2018;39:46–52

scholarly journals Risk factors for mortality in ventilator-associated tracheobronchitis: a case-control study

2017 ◽  
Vol 15 (1) ◽  
pp. 61-64
Author(s):  
Leonilda Giani Pontes ◽  
Fernando Gatti de Menezes ◽  
Priscila Gonçalves ◽  
Alexandra do Rosário Toniolo ◽  
Claudia Vallone Silva ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Intensive Care Patients ◽  
Microbiological Characteristics ◽  
Control Study

ABSTRACT Objective To describe the microbiological characteristics and to assess the risk factors for mortality of ventilator-associated tracheobronchitis in a case-control study of intensive care patients. Methods This case-control study was conducted over a 6-year period in a 40-bed medical-surgical intensive care unit in a tertiary care, private hospital in São Paulo, Brazil. Case patients were identified using the Nosocomial Infection Control Committee database. For the analysis of risk factors, matched control subjects were selected from the same institution at a 1:8.8 ratio, between January 2006 and December 2011. Results A total of 40 episodes of ventilator-associated tracheobronchitis were evaluated in 40 patients in the intensive care unit, and 354 intensive care patients who did not experience tracheobronchitis were included as the Control Group. During the 6-year study period, a total of 42 organisms were identified (polymicrobial infections were 5%) and 88.2% of all the microorganisms identified were Gram-negative. Using a logistic regression model, we found the following independent risk factors for mortality in ventilator-associated tracheobronchitis patients: Acute Physiology and Chronic Health Evaluation I score (odds ratio 1.18 per unit of score; 95%CI: 1.05-1.38; p=0.01), and duration of mechanical ventilation (odds ratio 1.09 per day of mechanical ventilation; 95%CI: 1.03-1.17; p=0.004). Conclusion Our study provided insight into the risk factors for mortality and microbiological characteristics of ventilator-associated tracheobronchitis.

Risk factors for obstetric admissions to the intensive care unit in a tertiary hospital: a case-control study

2005 ◽  
Vol 272 (3) ◽  
pp. 207-210 ◽  
Author(s):  
Daniel O Selo-Ojeme ◽  
Monica Omosaiye ◽  
Parijat Battacharjee ◽  
Rezan A Kadir
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Case Control Study ◽  
Tertiary Hospital ◽  
Case Control ◽  
Control Study

scholarly journals Prior Antibiotic Therapy and the Onset of Healthcare-Associated Infections Sustained by Multidrug-Resistant Klebsiella pneumoniae in Intensive Care Unit Patients: A Nested Case–Control Study

Antibiotics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 302
Author(s):  
Giuseppe Migliara ◽  
Valentina Baccolini ◽  
Claudia Isonne ◽  
Sara Cianfanelli ◽  
Carolina Di Paolo ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Klebsiella Pneumoniae ◽  
Case Control Study ◽  
Multidrug Resistant ◽  
Case Control ◽  
Healthcare Associated Infections ◽  
Healthcare Associated ◽  
Nested Case Control ◽  
Control Study

Epidemiological research has demonstrated direct relationships between antibiotic consumption and the emergence of multidrug-resistant (MDR) bacteria. In this nested case–control study, we assessed whether prior exposure to antibiotic therapy and its duration affect the onset of healthcare-associated infections (HAIs) sustained by MDR Klebsiella pneumoniae (MDR-Kp) in intensive care unit patients. Cases were defined as patients who developed an MDR-Kp HAI. Controls matched on sex and the length of intensive care unit (ICU) stay were randomly selected from the at-risk population. Any antibiotic agent received in systemic administration before the onset of infection was considered as antibiotic exposure. Multivariable conditional logistic regression analyses were performed to estimate the effect of prior exposure to each antibiotic class (Model 1) or its duration (Model 2) on the onset of HAIs sustained by MDR-Kp. Overall, 87 cases and 261 gender-matched controls were compared. In Model 1, aminoglycosides and linezolid independently increased the likelihood of developing an MDR-Kp HAI, whereas exposure to both linezolid and penicillins reduced the effect of linezolid alone. In Model 2, cumulative exposure to aminoglycosides increased the likelihood of the outcome, as well as cumulative exposures to penicillins and colistin, while a previous exposure to both penicillins and colistin reduced the influence of the two antibiotic classes alone. Our study confirms that aminoglycosides, penicillins, linezolid, and colistin may play a role in favoring the infections sustained by MDR-Kp. However, several double exposures in the time window before HAI onset seemed to hinder the selective pressure exerted by individual agents.

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