Gastrointestinal colonization of meticillin-resistant Staphylococcus aureus : an unrecognized burden upon hospital infection control
Copyright © 2021 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved..
BACKGROUND: Meticillin-resistant Staphylococcus aureus (MRSA) has become endemic in many healthcare settings.
AIM: To analyse the incidence, risk factors, outcomes, and genomic relatedness of patients with newly diagnosed gastrointestinal colonization of MRSA.
METHODS: Epidemiology and genetic analysis by whole-genome sequencing (WGS) in a hospital network in Hong Kong.
FINDINGS: Between October 1st, 2015 and December 31st, 2018, a total of 919 (2.7%) of 34,667 patients had newly diagnosed gastrointestinal MRSA colonization by admission screening. The incidence was 0.67 ± 0.32 per 1000 patient-days per quarter. Including patients with gastrointestinal MRSA colonization, the overall burden of MRSA increased by 59.2%, with an addition of 4727 MRSA patient-days during the study period. Patients referred from residential care home for the elderly, with history of hospitalization in the past six months, and consumption of fluoroquinolones, cephalosporins, and proton-pump inhibitors in the preceding six months were found to be independent risk factors by multivariate analysis in the case-control analysis. The median survival of cases was significantly shorter than that of controls (860 vs 1507 days, P < 0.001). Of 919 patients, 127 (13.8%) developed symptomatic MRSA infection in a median of 112 days. Of 19 patients with paired MRSA faecal and blood culture isolates subjected to WGS, clonality was found in 16 (84.2%) pairs of MRSA isolates. MRSA ST45 constituted 44.7% (17/38) of MRSA isolates.
CONCLUSION: Gastrointestinal MRSA colonization may contribute to adverse clinical outcomes and pose an unrecognized burden upon hospital infection control.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:121 |
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Enthalten in: |
The Journal of hospital infection - 121(2022) vom: 01. März, Seite 65-74 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Wong, S-C [VerfasserIn] |
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Links: |
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Themen: |
Gastrointestinal colonization |
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Anmerkungen: |
Date Completed 07.03.2022 Date Revised 07.03.2022 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.jhin.2021.12.016 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM334898390 |
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520 | |a Copyright © 2021 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved. | ||
520 | |a BACKGROUND: Meticillin-resistant Staphylococcus aureus (MRSA) has become endemic in many healthcare settings | ||
520 | |a AIM: To analyse the incidence, risk factors, outcomes, and genomic relatedness of patients with newly diagnosed gastrointestinal colonization of MRSA | ||
520 | |a METHODS: Epidemiology and genetic analysis by whole-genome sequencing (WGS) in a hospital network in Hong Kong | ||
520 | |a FINDINGS: Between October 1st, 2015 and December 31st, 2018, a total of 919 (2.7%) of 34,667 patients had newly diagnosed gastrointestinal MRSA colonization by admission screening. The incidence was 0.67 ± 0.32 per 1000 patient-days per quarter. Including patients with gastrointestinal MRSA colonization, the overall burden of MRSA increased by 59.2%, with an addition of 4727 MRSA patient-days during the study period. Patients referred from residential care home for the elderly, with history of hospitalization in the past six months, and consumption of fluoroquinolones, cephalosporins, and proton-pump inhibitors in the preceding six months were found to be independent risk factors by multivariate analysis in the case-control analysis. The median survival of cases was significantly shorter than that of controls (860 vs 1507 days, P < 0.001). Of 919 patients, 127 (13.8%) developed symptomatic MRSA infection in a median of 112 days. Of 19 patients with paired MRSA faecal and blood culture isolates subjected to WGS, clonality was found in 16 (84.2%) pairs of MRSA isolates. MRSA ST45 constituted 44.7% (17/38) of MRSA isolates | ||
520 | |a CONCLUSION: Gastrointestinal MRSA colonization may contribute to adverse clinical outcomes and pose an unrecognized burden upon hospital infection control | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Gastrointestinal colonization | |
650 | 4 | |a Infection control | |
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