The Combinational Effect of Enhanced Infection Control Measures and Targeted Clinical Metagenomics Surveillance on the Burden of Endemic Carbapenem and Other β-Lactam Resistance Among Severely Ill Pediatric Patients

<b>Background:</b> Antimicrobial resistance (AMR) is recognized as one of the most important global public health threats. There is an urgent need to reduce the spread of these multidrug-resistant bacteria (MDR-B), particularly in extremely vulnerable patients. The aim of this study was...

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Main Authors: Athina Giampani, Maria Simitsopoulou, Maria Sdougka, Christos Paschaloudis, Emmanuel Roilides, Elias Iosifidis
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Biomedicines
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Online Access:https://www.mdpi.com/2227-9059/13/1/31
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Summary:<b>Background:</b> Antimicrobial resistance (AMR) is recognized as one of the most important global public health threats. There is an urgent need to reduce the spread of these multidrug-resistant bacteria (MDR-B), particularly in extremely vulnerable patients. The aim of this study was to investigate whether targeted gene amplification performed directly on clinical samples can be used simultaneously with a bundle of enhanced infection control measures in a Pediatric Intensive Care Unit (PICU) endemic to MDR-B. <b>Methods</b>: This study had three phases: (1) the baseline phase was performed prior to intervention when first screening and sample collection were performed; (2) the intervention phase was performed when various enhanced infection control measures (EICM) were applied; and (3) the maintenance phase occurred when EICMs were combined with the implementation of targeted molecular surveillance. The presence of four carbapenemase genes, <i>bla</i><sub>KPC</sub>, <i>bla</i><sub>OXA-48-like</sub>, <i>bla</i><sub>VIM</sub>, and <i>bla</i><sub>NDM</sub>, as well as the β-lactamase genes <i>bla</i><sub>TEM</sub> and <i>bla</i><sub>SHV</sub>, was evaluated by PCR after DNA isolation directly from stool samples. The results were compared to culture-based phenotypic analysis. <b>Results and Conclusions</b>: The implementation of EICM appeared to reduce the resistance burden in this sample endemic to an MDR-B clinical setting. The direct implementation of a targeted and customized rapid molecular detection assay to clinical samples seems to be an effective clinical tool for the evaluation of EICM measures.
ISSN:2227-9059