Journal
JOURNAL OF INFECTION
Volume 81, Issue 6, Pages 882-894Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.jinf.2020.11.002
Keywords
Bacteremia; Stem cell transplantation; Risk factors; Gram-negative; Mortality; Fluoroquinolone prophylaxis; Pre-engraftment; Post-engraftment
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Objectives: We present here data on Gram-negative rods bacteremia (GNRB) rates, risk factors and associated mortality. Methods: Data on GNRB episodes were prospectively collected in 65 allo-/67 auto-HSCT centers in 24 countries (Europe, Asia, Australia). In patients with and without GNRB, we compared: demography, underlying disease, HSCT-related data, center' fluoroquinolone prophylaxis (FQP) policy and accreditation status, and involvement of infection control team (ICT). Results: The GNRB cumulative incidence among 2818 allo-HSCT was: pre-engraftment (pre-eng-alloHSCT), 8.4 (95% CI 7-9%), post-engraftment (post-eng-allo-HSCT), 5.8% (95%CI: 5-7%); among 3152 auto-HSCT, pre-eng-auto-HSCT, 6.6% (95%CI: 6-7%), post-eng-auto-HSCT, 0.7% (95%CI: 0.4-1.1%). GNRB, especially MDR, was associated with increased mortality. Multivariate analysis revealed the following GNRB risk factors: (a) pre-eng-allo-HSCT: south-eastern Europe center location, underlying diseases not at complete remission, and cord blood source; (b) post-eng-allo-HSCT: center location not in northwestern Europe; underlying non-malignant disease, not providing FQP and never accredited. (c) pre-eng-auto-HSCT: older age, autoimmune and malignant (vs. plasma cell) disease, and ICT absence. Conclusions: Benefit of FQP should be explored in prospective studies. Increased GNRB risk in auto-HSCT patients transplanted for autoimmune diseases is worrying. Infection control and being accredited are possibly protective against bacteremia. GNRB are associated with increased mortality. (C) 2020 The British Infection Association. Published by Elsevier Ltd. All rights reserved.
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