Use of polymyxins for carbapenem-resistant infections in children and adolescents
© The Author(s) 2022. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy..
Background: Polymyxins are still used in children in some regions due to limited availability of newer antibiotics.
Objectives: To describe our experience in a cohort of children who received polymyxins for suspected or confirmed carbapenem-resistant bacterial infections (CRI), and explore potential factors associated with therapeutic success.
Methods: Retrospective, observational study in children and adolescents <18 years who received IV polymyxin B or colistin therapy for suspected or culture-documented CRI and were admitted to a high complexity clinic in Cali, Colombia between 1 September 2016 and 22 June 2020. Patients' demographic, clinical and microbiological characteristics were collected and analysed; associations with therapeutic success were explored using univariate and multivariate models.
Results: There were 40 episodes of polymyxin use (polymyxin B, n = 34; colistin, n = 6) in 34 patients with a median age of 10 years (IQR 7-15); 65% were male. There were 17 adverse events: 3 (17.6%) neurotoxic and 14 (82.4%) nephrotoxic. Therapeutic success was achieved in 28 episodes (70%), of which 32% (9/28) had adverse events. Therapeutic success decreased by 35% with each additional year of age (OR 0.65; 95% CI 0.49-0.80) and by 7% for every hour that elapsed between the onset of fever and the start of appropriate antibiotic therapy (OR 0.93; 95% CI 0.8-0.97) and increased with concomitant non-carbapenem treatment (OR 6.87; 95% CI 1.04-71.01) and the use of adequate empirical therapy (OR 121.36; 95% CI 2.90-1147.95).
Conclusions: Several factors were associated with the therapeutic success of polymyxins, however, more than half of episodes had therapeutic failure or adverse events. Antibiotics with greater efficacy and safety are needed in regions with high rates of CRI.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:4 |
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Enthalten in: |
JAC-antimicrobial resistance - 4(2022), 3 vom: 14. Juni, Seite dlac073 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Barco-Cabrera, Carolina [VerfasserIn] |
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Links: |
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Themen: |
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Anmerkungen: |
Date Revised 16.07.2022 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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doi: |
10.1093/jacamr/dlac073 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM342948881 |
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520 | |a © The Author(s) 2022. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy. | ||
520 | |a Background: Polymyxins are still used in children in some regions due to limited availability of newer antibiotics | ||
520 | |a Objectives: To describe our experience in a cohort of children who received polymyxins for suspected or confirmed carbapenem-resistant bacterial infections (CRI), and explore potential factors associated with therapeutic success | ||
520 | |a Methods: Retrospective, observational study in children and adolescents <18 years who received IV polymyxin B or colistin therapy for suspected or culture-documented CRI and were admitted to a high complexity clinic in Cali, Colombia between 1 September 2016 and 22 June 2020. Patients' demographic, clinical and microbiological characteristics were collected and analysed; associations with therapeutic success were explored using univariate and multivariate models | ||
520 | |a Results: There were 40 episodes of polymyxin use (polymyxin B, n = 34; colistin, n = 6) in 34 patients with a median age of 10 years (IQR 7-15); 65% were male. There were 17 adverse events: 3 (17.6%) neurotoxic and 14 (82.4%) nephrotoxic. Therapeutic success was achieved in 28 episodes (70%), of which 32% (9/28) had adverse events. Therapeutic success decreased by 35% with each additional year of age (OR 0.65; 95% CI 0.49-0.80) and by 7% for every hour that elapsed between the onset of fever and the start of appropriate antibiotic therapy (OR 0.93; 95% CI 0.8-0.97) and increased with concomitant non-carbapenem treatment (OR 6.87; 95% CI 1.04-71.01) and the use of adequate empirical therapy (OR 121.36; 95% CI 2.90-1147.95) | ||
520 | |a Conclusions: Several factors were associated with the therapeutic success of polymyxins, however, more than half of episodes had therapeutic failure or adverse events. Antibiotics with greater efficacy and safety are needed in regions with high rates of CRI | ||
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