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

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:121

Enthalten in:

The Journal of hospital infection - 121(2022) vom: 01. März, Seite 65-74

Sprache:

Englisch

Beteiligte Personen:

Wong, S-C [VerfasserIn]
Chen, J H-K [VerfasserIn]
So, S Y-C [VerfasserIn]
Ho, P-L [VerfasserIn]
Yuen, K-Y [VerfasserIn]
Cheng, V C-C [VerfasserIn]

Links:

Volltext

Themen:

Gastrointestinal colonization
Infection control
Journal Article
Methicillin
Meticillin-resistant Staphylococcus aureus
Q91FH1328A

Anmerkungen:

Date Completed 07.03.2022

Date Revised 07.03.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jhin.2021.12.016

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM334898390