Journal
JOURNAL OF PEDIATRIC HEMATOLOGY ONCOLOGY
Volume 41, Issue 8, Pages E493-E498Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MPH.0000000000001556
Keywords
Gram-negative rods; bacteremia; carbapenem resistance; hematologic malignancy; stem cell transplantation
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Gram-negative rod (GNR) infections adversely affect the outcome of patients with malignancies and following hematopoietic stem cell transplantation (HSCT). This retrospective observational study aimed to describe the epidemiology, outcome, and resistance patterns of GNR bacteremia in children with hematologic malignancies (HM) and after HSCT during the period spanning from 2010 to 2014 in a tertiary children's hospital. A total of 270 children were included in the analysis; 65 (24%) developed 85 episodes of GNR bacteremia; the rate was 36/122 (29.5%) in post-HSCT and 29/178 (16.3%) in HM patients (P<0.05). Overall, 10% of the GNRs were carbapenem resistant. In multivariate analysis, prolonged neutropenia (>= 7 d; odds ratio: 19.5, 95% confidence interval: 2.6-148.4) and total hospitalization for a duration of >30 days in the last 3 months (odds ratio: 17.5, 95% confidence interval: 1.4-224.4) were associated with carbapenem-resistant GNR bacteremia. Thirty-day mortality following GNR bacteremia was 0% in HM and 7/52 episodes (13.5%) in HSCT patients (P<0.05). Carbapenem-resistant versus carbapenem-sensitive bacteremia was associated with longer duration of bacteremia (mean: 3.8 vs. 1.7 d), higher risk for intensive care unit hospitalization (44.4% vs. 10.1%), and higher mortality rate (33% vs. 5.8%) (P<0.05). To summarize, GNR bacteremia was frequent, especially in post-HSCT children. Carbapenem resistance adversely affects patients' outcome, increasing morbidity and mortality. Empirical antibiotic therapy must be adjusted to the local resistance patterns.
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