Journal ArticleDOI
Effect of selective decontamination on antimicrobial resistance in intensive care units: a systematic review and meta-analysis
TLDR
No relation between the use of SDD or SOD and the development of antimicrobial-resistance in pathogens in patients in the ICU is detected, suggesting that the perceived risk of long-term harm related to selective decontamination cannot be justified by available data.Abstract:
Summary Background Many meta-analyses have shown reductions in infection rates and mortality associated with the use of selective digestive decontamination (SDD) or selective oropharyngeal decontamination (SOD) in intensive care units (ICUs). These interventions have not been widely implemented because of concerns that their use could lead to the development of antimicrobial resistance in pathogens. We aimed to assess the effect of SDD and SOD on antimicrobial resistance rates in patients in ICUs. Methods We did a systematic review of the effect of SDD and SOD on the rates of colonisation or infection with antimicrobial-resistant pathogens in patients who were critically ill. We searched for studies using Medline, Embase, and Cochrane databases, with no limits by language, date of publication, study design, or study quality. We included all studies of selective decontamination that involved prophylactic application of topical non-absorbable antimicrobials to the stomach or oropharynx of patients in ICUs, with or without additional systemic antimicrobials. We excluded studies of interventions that used only antiseptic or biocide agents such as chlorhexidine, unless antimicrobials were also included in the regimen. We used the Mantel-Haenszel model with random effects to calculate pooled odds ratios. Findings We analysed 64 unique studies of SDD and SOD in ICUs, of which 47 were randomised controlled trials and 35 included data for the detection of antimicrobial resistance. When comparing data for patients in intervention groups (those who received SDD or SOD) versus data for those in control groups (who received no intervention), we identified no difference in the prevalence of colonisation or infection with Gram-positive antimicrobial-resistant pathogens of interest, including meticillin-resistant Staphylococcus aureus (odds ratio 1·46, 95% CI 0·90–2·37) and vancomycin-resistant enterococci (0·63, 0·39–1·02). Among Gram-negative bacilli, we detected no difference in aminoglycoside-resistance (0·73, 0·51–1·05) or fluoroquinolone-resistance (0·52, 0·16–1·68), but we did detect a reduction in polymyxin-resistant Gram-negative bacilli (0·58, 0·46–0·72) and third-generation cephalosporin-resistant Gram-negative bacilli (0·33, 0·20–0·52) in recipients of selective decontamination compared with those who received no intervention. Interpretation We detected no relation between the use of SDD or SOD and the development of antimicrobial-resistance in pathogens in patients in the ICU, suggesting that the perceived risk of long-term harm related to selective decontamination cannot be justified by available data. However, our study indicates that the effect of decontamination on ICU-level antimicrobial resistance rates is understudied. We recommend that future research includes a non-crossover, cluster randomised controlled trial to assess long-term ICU-level changes in resistance rates. Funding None.read more
Citations
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International ERS/ESICM/ESCMID/ALAT guidelines for the management of hospital-acquired pneumonia and ventilator-associated pneumonia
Antoni Torres,Michael S. Niederman,Jean Chastre,Santiago Ewig,Patricia Fernandez-Vandellos,Håkan Hanberger,Marin H. Kollef,Gianluigi Li Bassi,Carlos M. Luna,Ignacio Martin-Loeches,J. Artur Paiva,Robert C. Read,David Rigau,Jean-François Timsit,Tobias Welte,Richard G. Wunderink +15 more
TL;DR: The panel selected seven PICO (population–intervention–comparison–outcome) questions that generated a series of recommendations for HAP/VAP diagnosis, treatment and prevention that were adopted by the ERS/ESICM/ESCMID/ALAT panel.
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Trends in human fecal carriage of extended-spectrum β-lactamases in the community: toward the globalization of CTX-M.
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Aminoglycosides: An Overview
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Bacterial and fungal infections in acute-on-chronic liver failure: prevalence, characteristics and impact on prognosis
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Journal ArticleDOI
Mechanisms of antimicrobial resistance in Gram-negative bacilli
TL;DR: The burden of multidrug resistance in Gram-negative bacilli (GNB) now represents a daily issue for the management of antimicrobial therapy in intensive care unit (ICU) patients, and recent reports emphasizing the spread of colistin resistance in environments with high volume of polymyxins use elicit major concern.
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