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Epidemiology and Risk Factors for Outpatient-Acquired Catheter-Related Bloodstream Infections in Children Receiving
Laura J Wozniak1, Hannah M Bechtold2, Laurie E Reyen3
1Division of Pediatric Gastroenterology, Hepatology, and Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
Insights
Catheter-related bloodstream infections (CRBSIs) are common in children receiving home parenteral nutrition, often presenting with fever. The presence of a feeding tube significantly increases the risk of developing these infections.
Area of Science:
- Pediatric Infectious Diseases
- Clinical Epidemiology
- Parenteral Nutrition
Background:
- Outpatient-acquired catheter-related bloodstream infections (CRBSIs) are a significant concern in pediatric home parenteral nutrition (HPN).
- Limited research exists on the epidemiology and risk factors for CRBSIs in this vulnerable population.
Purpose of the Study:
- To characterize the incidence, clinical presentation, and epidemiology of CRBSIs in children on HPN.
- To identify specific risk factors associated with CRBSI development in pediatric HPN patients.
Main Methods:
- A prospective longitudinal database was utilized to track CRBSIs in pediatric patients (<18 years) receiving HPN.
- Data collection occurred over a 12-month period (January-December 2012) at a single institution.
Main Results:
- 50% of patients (30/60) experienced 66 CRBSIs, with an overall rate of 3.6 per 1000 catheter days.
- Fever was the most common symptom (82%), followed by gastrointestinal (42%) and respiratory symptoms (29%).
- The presence of a feeding tube was the sole significant multivariate risk factor, increasing CRBSI risk by 2.3-fold (p=0.04).
Conclusions:
- CRBSIs are prevalent in children requiring HPN, frequently manifesting with fever.
- Gastrointestinal and respiratory symptoms can also accompany CRBSIs in this cohort.
- Co-existing feeding tubes represent a significant risk factor for CRBSI development in pediatric HPN patients.
Background:
Few studies have examined the epidemiology and risk factors for the development of outpatient-acquired catheter-related bloodstream infections (CRBSIs) in children receiving home parenteral nutrition. This study aimed to (1) characterize the incidence, clinical presentation, and epidemiology of CRBSIs and (2) identify risk factors for CRBSIs in children receiving home parenteral nutrition.
Methods:
A longitudinal database approved by our Institutional Review Board was created to prospectively track CRBSIs in the UCLA pediatric population from January to December 2012. Eligible patients included those < 18 years old receiving home parenteral nutrition.
Results:
Thirty of 60 patients (50%) were diagnosed with 66 CRBSIs, for an overall CRBSI rate of 3.6 per 1000 catheter days. Of the CRBSIs, 73% were due to single microorganisms and 27% were polymicrobial. There was a significant difference in median (range) time for blood cultures to turn positive depending on type of CRBSIs (p = 0.03), with polymicrobial infections detected at 13.4 (8.7-24.3) hours, gram-negative infections at 16.5 (9-30.8) hours, and gram-positive infections at 18.9 (8.4-37.1) hours. The most common presenting symptom was fever (82%), followed by gastrointestinal symptoms (42%) and chills (29%). The only significant multivariate risk factor for CRBSIs was presence of a feeding tube (2.3-fold increase in CRBSI risk, p = 0.04).
Discussion:
Outpatient-acquired CRBSIs are common in children receiving home parenteral nutrition. CRBSIs typically present with fever, but are also associated with gastrointestinal and/or respiratory symptoms. The presence of feeding tubes may predispose children on home parenteral nutrition to developing CRBSIs.
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