Objective: To compare and contrast the epidemiology of polymicrobial and monomicrobial bloodstream infections (BSIs) in newborn intensive care unit (NICU) patients.

Design: Retrospective, matched case-control study.

Setting: The Yale-New Haven Hospital NICU from 1989 through 2006.

Subjects: NICU patients with BSIs.

Methods: Each neonate with polymicrobial BSI (case patient) was matched to one neonate with monomicrobial BSI (control patient), by birth date, weight, and sex; and univariate and multivariate analyses were performed.

Results: One hundred five cases of polymicrobial BSI were identified in 102 infants, representing 10% of all neonatal BSIs in our institution. Coagulase-negative staphylococci were the most common organisms recovered from culture. Infants with polymicrobial BSI had later onset of infection than infants with monomicrobial BSI (mean day of life, 37.5 vs 24.0; P<.001). Polymicrobial BSI occurred more frequently among infants with a severe underlying condition than in those without such a condition (odds ratio [OR], 1.8; 95% confidence interval [CI], 1.1-3.2) and among infants requiring an indwelling central venous catheter for a prolonged duration (mean, 16.9 days, compared with 9.8 days for infants with monomicrobial BSI; P=.001). Multivariate analysis revealed that later onset of infection (adjusted OR [aOR], 1.02; 95% CI, 1.00-1.04) and presence of a severe underlying condition (aOR, 1.91; 95% CI, 1.12-3.38) were independent risk factors for polymicrobial BSI. No differences in outcome or mortality were observed.

Conclusions: Changes in the microbiology and epidemiology of NICU-related polymicrobial BSI have occurred since the last North American review. In the present study, although differences were observed, most risk factors and outcomes were similar between monomicrobial BSI and polymicrobial BSI. Epidemiologic surveillance is critical to identify trends associated with neonatal polymicrobial BSI, particularly those that may impact preventative strategies, diagnostic measures, and therapeutic interventions.

Download full-text PDF

Source
http://dx.doi.org/10.1086/591323DOI Listing

Publication Analysis

Top Keywords

polymicrobial bsi
12
matched case-control
8
intensive care
8
care unit
8
monomicrobial bsi
8
polymicrobial
5
bsi
5
case-control analysis
4
analysis polymicrobial
4
polymicrobial bloodstream
4

Similar Publications

Background & Objective: Blood Stream Infections (BSI) are considered a significant cause of morbidity and mortality in patients with Stevens Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN). We aimed to identify risk factors for BSI upon admission, highlight clinical and microbiological findings and ascertain the frequency of mortality in patients with BSI in SJS/TEN.

Methods: A retrospective cross-sectional study over 12 years (2011-2022) was performed in the department of medicine at a tertiary care hospital in Pakistan.

View Article and Find Full Text PDF

The antibacterial activity of a prophage-encoded fitness factor is neutralized by two cognate immunity proteins.

J Biol Chem

November 2024

Michael DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada. Electronic address:

The human gastrointestinal tract is a competitive environment inhabited by dense polymicrobial communities. Bacteroides, a genus of Gram-negative anaerobes, are prominent members of this ecological niche. Bacteroides spp.

View Article and Find Full Text PDF

Bloodstream infection (BSI) is a common complication with a high fatality rate in cancer patients. There are notable variations in the epidemiology of BSI over time and among different countries. Infections due to multidrug-resistant organisms (MDROs) such as extended-spectrum beta-lactamases (ESBLs) and carbapenem-resistant (CRE) are increasing.

View Article and Find Full Text PDF

Increase in PVC-BSI during the second COVID-19 pandemic year: analysis of catheter and patient characteristics.

Antimicrob Resist Infect Control

October 2024

Infection Control Program and WHO Collaborating Centre, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland.

Background: Increasing nosocomial infections during the COVID-19 pandemic have been reported. However, data describing peripheral venous catheter associated bloodstream infections (PVC-BSI) are limited.

Aims: To describe the epidemiology and risk factors for PVC-BSI during the COVID-19 pandemic.

View Article and Find Full Text PDF

Polymicrobial methicillin-resistant bloodstream infections.

Microbiol Spectr

November 2024

Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA.

Methicillin-resistant (MRSA) bloodstream infection (BSI) is a serious public health concern. At times, MRSA is isolated from the blood along with other pathogens, the significance and consequences of which are not well described. This study aims to outline the clinical characteristics and outcomes of those with polymicrobial MRSA BSI compared with those with monomicrobial MRSA BSI.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!