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Inappropriate empirical antibiotic therapy was an independent risk factor of pediatric persistent S. aureus bloodstream infection

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Abstract

Persistent S. aureus bloodstream infection (PSBSI) increased the incidence of metastatic infection and mortality. We aimed to clarify its risk factors and correlation with metastatic infection and septic shock in children. This retrospective and observational study enrolled children with S. aureus bloodstream infection who admitted to Children’s Hospital of Chongqing Medical University between January 2016 and December 2021. The logistic regression model was used for multivariable analyses to determine independent factors associated with PSBSI and clarify the effect of persistent S. aureus bloodstream infection and other factors on metastatic infection and septic shock. One hundred and twenty-seven children were included in this study retrospectively. There were thirty-two cases in the persistent S. aureus bloodstream infection group and ninety-five children in the non-persistent infection group. Multivariate logistic regression analysis indicated that inappropriate empirical antibiotic therapy (OR, 7.26; 95%CI, 2.48–21.30; P<0.01) was an independent risk factor of persistent S. aureus bloodstream infection. Persistent S. aureus bloodstream infection (OR, 6.40; 95%CI, 2.08–19.70; P<0.01) and community-acquired S. aureus bloodstream infection (OR, 4.75; 95%CI, 1.34–16.89; P=0.02) were independent predictors of metastatic infection. Pittsburgh bacteremia scores ≥ 2 (OR, 28.81; 95%CI, 5.26–157.99; P<0.01), hypoalbuminemia (OR, 13.34; 95%CI, 2.43–73.28; P<0.01) and persistent S. aureus bloodstream infection (OR, 5.48; 95%CI, 1.13–26.54; P=0.04) were independent risk factors of septic shock.

Conclusion: Inappropriate empirical antibiotic therapy was an independent risk factor of pediatric persistent S. aureus bloodstream infection. Pediatric persistent S. aureus bloodstream infection was associated with metastatic infection and septic shock.

What is Known:

• Pathogenic features such as Methicillin-resistant S. aureus and sources of infection such as central venous catheter related infection were risk factors of PSBSI in adults.

• PSBSI increased the incidence of metastatic infection and mortality in adults.

What is New:

• Inappropriate empirical antibiotic therapy was an independent risk factor of pediatric persistent S. aureus bloodstream infection.

• Pediatric persistent S. aureus bloodstream infection was associated with metastatic infection and septic shock.

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Data Availability

The data-sets analyzed during the current study are available from the corresponding author on reasonable request.

Abbreviations

CI :

Confidence interval

S. aureus :

Staphylococcus aureus

MRSA :

Methicillin-resistant S. aureus

MSSA :

Methicillin-sensitive S. aureus

PICU:

Pediatric Intensive Care Unit

PSBSI:

Persistent S. aureus bloodstream infection

OR :

Odds ratio

ROC :

Receiver operating characteristic

TTP:

Time to positive

IQR:

Inter-quartile ranges

*:

P<0.05

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Funding

This work was supported by the National Key Clinical specialty fund (grant 2011–873).

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Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by XM W, X Z, ZY G, QY L, GL Z, XY T, and DP C. The first draft of the manuscript was written by XM W and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Zhengxiu Luo.

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Competing interests

The authors declare no competing interests.

Ethics approval and consent to participate

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the Ethics Committee of Children’s Hospital of Chongqing Medical University (File No. (2022)187). Informed consent was obtained from the parents in written form when children were admitted to the hospital. All methods were performed in accordance with the relevant guidelines and regulations.

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Formal consent is not required because this was a retrospective evaluation of already collected data.

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The authors declare no competing interests.

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Communicated by Tobias Tenenbaum

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Wang, X., Guo, Z., Zhang, X. et al. Inappropriate empirical antibiotic therapy was an independent risk factor of pediatric persistent S. aureus bloodstream infection. Eur J Pediatr 182, 719–729 (2023). https://doi.org/10.1007/s00431-022-04729-9

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