A recent study has shed new light on the most common infections found in pediatric burn patients from low- and middle-income countries. Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus were all frequently discovered as being multi-drug resistant (MDR). The prevalence of MDR bloodstream infections (BSIs) is increasing, signifying an urgent need for enhanced antimicrobial stewardship and more targeted initial antimicrobial use.
The focus of this study was on the etiology and timing of BSIs that emerged in pediatric burn patients admitted to two hospitals within the Tshwane District, South Africa. After analyzing records from 245 admissions, it was noted that almost 19% of these burn patients developed BSIs.
The most common isolates from the positive blood cultures were Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa. Additionally, about two-thirds of the BSIs were attributable to gram-negative bacteria. Among all these isolates, 56% were MDR, demonstrating a substantial challenge in treatment.
An important conclusion from the study is that preventing infections is now just as, if not more, critical than treating them, particularly in the case of BSIs. This is because as gram-positive and gram-negative infections mainly occur early in an admission period, an initial narrow-spectrum antimicrobial use for these patients cannot be applied. Hence, an approach involving antimicrobial de-escalation once culture results are received should be prioritized.
This situation underscores the need for optimizing wound care and infection control measures in burn units, in order to prevent BSIs in the first place. Broad-spectrum antibiotics should be used judiciously, and aggressive de-escalation tactics must be employed to help minimize the development of antimicrobial resistance.
Interestingly, the pediatric burn patient demographic in Tshwane District, South Africa heavily skews towards children under the age of 10. These children make up around 80% of the total burn cases and witness most of the burn-related fatalities. Infections, particularly BSIs, post a unique challenge as burn victims are particularly vulnerable due to the lost protective dermal barrier and often burn-induced immunosuppression. Prolonged antibiotic administration, hospital admission, and the use of invasive medical devices further increase infection risk.
A noteworthy finding has been the contrast in the leading cause of gram-negative bloodstream infections. The global trend is usually Pseudomonas aeruginosa, but the study found Acinetobacter baumannii to be more common in this particular demographic. This underlines the nuances in regional microbial prevalence and re-emphasizes the need for targeted, localized strategies in managing and preventing BSIs in burn patients.
Source: https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-025-10582-6