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A Mellouli1,2,3, B Maamar1,2, F Bouzakoura1,2

  • 1Laboratoire de Biologie Médicale et Banque du Sang, Centre de Traumatologie et des Grands Brûlés de Ben Arous, Tunisie.

Annals of Burns and Fire Disasters
|November 8, 2021
PubMed
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Acinetobacter baumannii colonization and infection are significant concerns in burn units. High rates of multidrug resistance were observed, with colistin showing the lowest resistance at 1.8%.

Area of Science:

  • Medical Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Context:

  • Acinetobacter baumannii is a prevalent opportunistic pathogen in hospital settings, particularly in burn units.
  • Multidrug resistance in Acinetobacter baumannii poses a significant challenge for patient treatment.
  • Understanding colonization and infection dynamics is crucial for infection control.

Purpose:

  • To determine the incidence density of Acinetobacter baumannii colonization and infection.
  • To analyze the antibiotic susceptibility patterns of isolated Acinetobacter baumannii strains.
  • To investigate the correlation between colonization and infection.

Summary:

  • This retrospective study analyzed 1517 Acinetobacter baumannii strains from a Tunisian burn unit between 2012 and 2020.

Related Experiment Videos

  • Colonization incidence density was 13.7‰ patient-days, and infection incidence density was 14.1‰ patient-days, with a significant correlation between the two.
  • High resistance rates were observed for most tested antibiotics, including ceftazidime (85.2%), imipenem (95.3%), and amikacin (91.1%). Colistin resistance was low at 1.8%.

    • Impact:

    • The findings highlight the substantial burden of Acinetobacter baumannii in burn units and the urgent need for effective antimicrobial strategies.
    • The study underscores the prevalence of multidrug-resistant strains, emphasizing the importance of infection control measures.
    • Low colistin resistance suggests its potential utility as a last-resort antibiotic, though continued monitoring is essential.