TY - JOUR
T1 - Impact of an antimicrobial stewardship bundle on the outcome of high-risk neutropenic patients with fever
T2 - a pre-post study
AU - Kuijpers, Suzanne M. E.
AU - de la Court, Jara R.
AU - Prins, Jan M.
AU - Schade, Rogier P.
AU - Heijmans, Jarom
AU - Sigaloff, Kim C. E.
N1 - Publisher Copyright:
© The Author(s) 2025. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy.
PY - 2025/10/1
Y1 - 2025/10/1
N2 - Background: Rapid antibiotic initiation is essential for managing potential infections following chemotherapy-induced neutropenia. However, excessive use of broad-spectrum antibiotics should be avoided. Implementing antimicrobial stewardship (AMS) in haematology units is challenging due to high infection-related risks, and data on interventions remain scarce. This study aimed to evaluate the safety of an AMS bundle on a haematology ward. Methods: A prospective cohort study was conducted at a tertiary care centre among patients with high-risk (≥7 days) neutropenia. The AMS bundle consisted of replacing empirical meropenem with ceftazidime, and shortening treatment duration to 2 days in case of defervescence and negative blood cultures. Data on ICU admission, all-cause mortality, antimicrobial use and microorganisms identified were compared with a (retrospective) pre-intervention cohort. Results: A total of 396 patients were included (206 pre-intervention, 190 post-intervention). Allogeneic stem cell transplantations increased from 21% pre-intervention to 37% post-intervention. There was no statistical difference in the adjusted composite endpoint of ICU admission and all-cause mortality [adjusted HR (aHR) 1.46; 95% CI, 0.76–2.81; P = 0.26]. Pre-intervention, meropenem was prescribed in 99% of patients, which shifted to ceftazidime in 78% post-intervention. Median antibiotic treatment duration decreased from 8.0 to 5.0 days (P < 0.001), and empirical antibiotic consumption decreased from 12 to 8 days of therapy per patient (P < 0.001). Bloodstream infections with Candida spp. decreased from 17 pre-intervention to 5 post-intervention (P = 0.03). Conclusions: The AMS bundle led to a shift towards narrower-spectrum antibiotics, and reduced treatment duration and overall antibiotic use without a significant impact on the primary safety outcome. The intervention was accompanied by a declining trend in candidaemia incidence.
AB - Background: Rapid antibiotic initiation is essential for managing potential infections following chemotherapy-induced neutropenia. However, excessive use of broad-spectrum antibiotics should be avoided. Implementing antimicrobial stewardship (AMS) in haematology units is challenging due to high infection-related risks, and data on interventions remain scarce. This study aimed to evaluate the safety of an AMS bundle on a haematology ward. Methods: A prospective cohort study was conducted at a tertiary care centre among patients with high-risk (≥7 days) neutropenia. The AMS bundle consisted of replacing empirical meropenem with ceftazidime, and shortening treatment duration to 2 days in case of defervescence and negative blood cultures. Data on ICU admission, all-cause mortality, antimicrobial use and microorganisms identified were compared with a (retrospective) pre-intervention cohort. Results: A total of 396 patients were included (206 pre-intervention, 190 post-intervention). Allogeneic stem cell transplantations increased from 21% pre-intervention to 37% post-intervention. There was no statistical difference in the adjusted composite endpoint of ICU admission and all-cause mortality [adjusted HR (aHR) 1.46; 95% CI, 0.76–2.81; P = 0.26]. Pre-intervention, meropenem was prescribed in 99% of patients, which shifted to ceftazidime in 78% post-intervention. Median antibiotic treatment duration decreased from 8.0 to 5.0 days (P < 0.001), and empirical antibiotic consumption decreased from 12 to 8 days of therapy per patient (P < 0.001). Bloodstream infections with Candida spp. decreased from 17 pre-intervention to 5 post-intervention (P = 0.03). Conclusions: The AMS bundle led to a shift towards narrower-spectrum antibiotics, and reduced treatment duration and overall antibiotic use without a significant impact on the primary safety outcome. The intervention was accompanied by a declining trend in candidaemia incidence.
UR - https://www.scopus.com/pages/publications/105019709829
U2 - 10.1093/jacamr/dlaf191
DO - 10.1093/jacamr/dlaf191
M3 - Article
C2 - 41127443
SN - 2632-1823
VL - 7
JO - JAC-Antimicrobial Resistance
JF - JAC-Antimicrobial Resistance
IS - 5
M1 - dlaf191
ER -