Controlling the Diffusion of Multidrug-Resistant Organisms in Intensive Care Units

2019 ◽  
Vol 40 (04) ◽  
pp. 558-568 ◽  
Author(s):  
Solen Kernéis ◽  
Jean-Christophe Lucet
Keyword(s):  
Intensive Care ◽  
Hand Hygiene ◽  
Intensive Care Units ◽  
Multidrug Resistant ◽  
Control Measures ◽  
Behavioral Approach ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Contact Precautions ◽  
Multidrug Resistant Organisms

AbstractThe prevalence of multidrug-resistant organisms (MDROs) in intensive care units (ICUs) is increasing worldwide, with very large variations across countries, microorganisms, and settings. Emerging MDR gram-negative bacteria and fungi raise particular concerns that require improved prevention and control strategies. Vertical approaches are mainly based on screening and contact precautions and/or decolonization of MDRO carriers. On the other hand, horizontal strategies are not pathogen-specific and include standard precautions (i.e., hand hygiene), universal decolonization, antimicrobial stewardship, and environmental cleaning. The impacts of the different strategies vary between MDROs and compliance with control measures, and are intermixed in most infection control programs. Based on historical data, hand hygiene remains the cornerstone to prevent transmission of MDROs in ICUs. In the context of high hand hygiene compliance, screening and contact precautions for carriers seem to have a limited additional effect, particularly for MDR gram-negative bacteria. Studies on skin decolonization with chlorhexidine bathing show conflicting results, impairing its widespread adoption. Selective oral and digestive decontaminations have shown positive impact on clinical outcomes in ICUs with low levels of antibiotic resistance, but raised ecological concerns in high-prevalence settings. Antibiotic stewardship programs have been associated with reductions in antimicrobial use, duration of stay, and costs with no negative impact on mortality and should be widely promoted in ICUs. Whatever the strategy, compliance with the recommended measures is of crucial importance and implementation should rely on behavioral approach and change in the institutional and safety culture.

scholarly journals High Carriage Rates of Multidrug-Resistant Gram-Negative Bacteria in Neonatal Intensive Care Units From Ghana

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Appiah-Korang Labi ◽  
Stephanie Bjerrum ◽  
Christabel C Enweronu-Laryea ◽  
Prosper K Ayibor ◽  
Karen L Nielsen ◽  
...  
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Neonatal Intensive Care ◽  
Multidrug Resistant ◽  
Neonatal Intensive Care Units ◽  
Snp Analysis ◽  
Gram Negative Bacteria ◽  
Cross Sectional ◽  
Gram Negative ◽  
Klebsiella Spp

Abstract Background Carriage of multidrug resistant (MDR) Gram-negative bacteria (GN) in hospitalized neonates may increase the risk of difficult-to-treat invasive infections at neonatal intensive care units (NICUs). Data on MDRGN carriage among hospitalized newborns in Africa are limited. Methods We conducted a cross-sectional study at the NICUs of 2 tertiary hospitals in Ghana. Swabs from the axilla, groin, perianal region, and the environment were cultured, GN were identified, and antibiotic susceptibility was tested. We obtained blood culture isolates from neonates with sepsis. Whole-genome sequencing was used to characterize carbapenemase-producing Klebsiella pneumoniae. Typing was done by multilocus sequence typing (MLST) and single nucleotide polymorphism (SNP) analysis. Results A total of 276 GN were isolated from 228 screened neonates. Pathogenic GN were cultured in 76.8% (175 of 228) of neonates. Klebsiella spp (41.7%; 115 of 276) and Escherichia coli (26.4%; 73 of 276) were the commonest organisms. Carriage rates of MDRGN and third-generation cephalosporin resistant organisms were 49.6% (113 of 228) and 46.1% (105 of 228), respectively. Among Klebsiella spp, 75.6% (87 of 115) phenotypically expressed extended-spectrum β-lactamase activity, whereas 15.6% expressed carbapenemase and harbored bla-OXA-181 and bla-CTX-M-15. Overall, 7.0% (16 of 228) of neonates developed GN bloodstream infection. In 2 of 11 neonates, sequencing showed the same identity between carriage and the bloodstream isolate. Length of stay before specimen collection and antibiotic use were independently associated with carriage rates, which increased from 13% at admission to 42% by day 2 and reached a plateau at 91% by day 15. Conclusions High carriage rates of MDRGN, including carbapenemase-producing enterobacterales may be an emerging problem in NICUs in Africa.

scholarly journals Prevention and Control of Multidrug-Resistant Gram-Negative Bacteria in Adult Intensive Care Units: A Systematic Review and Network Meta-analysis

2017 ◽  
Vol 64 (suppl_2) ◽  
pp. S51-S60 ◽  
Author(s):  
Nattawat Teerawattanapong ◽  
Kirati Kengkla ◽  
Piyameth Dilokthornsakul ◽  
Surasak Saokaew ◽  
Anucha Apisarnthanarak ◽  
...  
Keyword(s):  
Systematic Review ◽  
Intensive Care ◽  
Intensive Care Units ◽  
Prevention And Control ◽  
Meta Analysis ◽  
Multidrug Resistant ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
And Control

scholarly journals Risk Factors for Gastrointestinal Colonization and Acquisition of Carbapenem-Resistant Gram-Negative Bacteria among Patients in Intensive Care Units in Thailand

2018 ◽  
Vol 62 (8) ◽  
Author(s):  
Anong Kiddee ◽  
Kanit Assawatheptawee ◽  
Anamai Na-udom ◽  
Pornpit Treebupachatsakul ◽  
Apirath Wangteeraprasert ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care ◽  
Intensive Care Units ◽  
Tertiary Care ◽  
Control Measures ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Content Type ◽  
Predominant Species ◽  
Carbapenem Resistant

ABSTRACTThis study was conducted to investigate the prevalence of and risk factors for colonization and acquisition of carbapenem-resistant (CR) Gram-negative bacteria (GNB) among patients admitted to intensive care units (ICUs) in two tertiary care hospitals in northern Thailand. Screening of rectal swab specimens for CR-GNB was performed on patients at ICU admission and discharge. The phenotypes and genotypes of all isolates were determined. Risk factors were analyzed by logistic regression analysis. The overall carriage rate of CR-GNB at admission was 11.6% (32/275), with the most predominant species carried beingAcinetobacter baumannii(n= 15), followed byKlebsiella pneumoniae(n= 9). The risk factor for CR-GNB colonization was hospitalization within the previous 6 months (P= 0.002). During the ICU stay, the rate of CR-GNB acquisition was 25.2% (52/206), with the most predominant species carried beingA. baumannii(n= 28) andK. pneumoniae(n= 13). Risk factors associated with CR-GNB acquisition were the use of an enteral feeding tube (P= 0.008) and administration of third-generation cephalosporins (P= 0.032) and carbapenems (P= 0.045). The most common carbapenemase genes inA. baumanniiandK. pneumoniaewereblaOXA-23/51andblaNDM, respectively. Patient-to-patient transmission was demonstrated in three cases, resulting in the acquisition of CRA. baumannii(2 cases) andK. pneumoniae(1 case) isolates from other patients who were admitted during the same period of time. This is the first Indochinese study screening patients, examining patients for the carriage of CR-GNB, and further demonstrating the transfer of CR-GNB isolates in ICUs. Our study suggests that effective infection control measures are required to limit the spread of CR-GNB within hospitals.

scholarly journals Multidrug-resistant organisms detected in refugee patients admitted to a University Hospital, Germany June‒December 2015

2016 ◽  
Vol 21 (2) ◽  
Author(s):  
Claudia Reinheimer ◽  
Volkhard A. J. Kempf ◽  
Stephan Göttig ◽  
Michael Hogardt ◽  
Thomas A. Wichelhaus ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Multidrug Resistant ◽  
Control Measures ◽  
University Hospital ◽  
Healthcare Personnel ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Infection Control Measures ◽  
Multidrug Resistant Organisms ◽  
The University

Multidrug-resistant Gram-negative bacteria (MDR GNB) were found to colonise 60.8% (95% confidence interval: 52.3–68.9) of 143 refugee patients mainly from Syria (47), Afghanistan (29), and Somalia (14) admitted to the University Hospital Frankfurt, Germany, between June and December 2015. This percentage exceeds the prevalence of MDR GNB in resident patients four–fold. Healthcare personnel should be aware of this and the need to implement or adapt adequate infection control measures.

scholarly journals 528. Longitudinal Evaluation of Chlorhexidine Resistance Among Multidrug-Resistant Organisms in Relation to Intervention of Daily Chlorhexidine Bathing in Adult Intensive Care Units

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S254-S254
Author(s):  
Min Ja Kim ◽  
You Seung Chung ◽  
Hojin Lee ◽  
Jin Woong Suh ◽  
Yoojung Cheong ◽  
...  
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Clinical Laboratory ◽  
Multidrug Resistant ◽  
University Hospital ◽  
Microdilution Method ◽  
Broth Microdilution Method ◽  
Multidrug Resistant Organisms ◽  
Before And After ◽  
The Republic

Abstract Background Chlorhexidine digluconate (CHG), the most widely used antiseptic, has recently been applied to patient washing to decolonize the multidrug-resistant organisms (MDROs), but there are little data on susceptibilities of MDROs to CHG. The purpose of this study was to evaluate CHG resistance among MDROs before and after the intervention of daily CHG bathing in adult intensive care units (ICUs). Methods The intervention of daily body washing with 2% CHG cloths were taken in adult patients the medical or surgical ICU of 23-bed by a crossover manner for 6 months (MICU, July to December 2017; SICU, January to June 2018) in a 1,050-bed, university hospital in the Republic of Korea. Available MDRO isolates were randomly selected from clinical cultures of ICU patients within 6 months before, during and after the intervention, including MRSA, MR-CoNS, VRE, Carbapenem-resistant Pseudomonas aeruginosa (CR-PA), CR-Acinetobacter baumannii (CR-AB). Minimum inhibitory concentrations (MICs) were determined using the broth microdilution method set by the Clinical Laboratory Standards Institute. Determination of the minimum bactericidal concentrations (MBCs) was performed by subculturing 10 µL from each well without visible microbial growth. Cumulative amounts of CHG used in both ICUs was estimated across the study period from January 2008 to June 2018. Results The cumulative CHG consumption from both ICUs increased sharply from 27,503 g to 29,556 g after one-year intervention. The ranges of MICs and MBCs of CHG among MDRO clinical isolates selected by a 6-month phase are summarized in Table 1. Particularly, CR-PA and CR-AB isolates revealed four to eight times higher MICs and MBCs compared with the majority of Gram-positives excepting some VRE isolates. On the other hand, neither MICs and MBCs ranges of CHG from the MDRO isolates nor the monthly incidence of the MDROs from both ICUs were significantly increased before and after the intervention of daily CHG bathing. Conclusion This study indicates that some Gram-negative MDRO isolates with higher MICs and MBCs of CHG might be from longstanding exposure to CHG or efflux pumps. Although 2% daily CHG bathing uses over 1,000 times higher concentrations than the lethal concentration, it might be needed to monitor CHG resistance among MDROs. Disclosures All authors: No reported disclosures.

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