From the Research
Clinical Significance of Exiguobacterium auranticum in Blood Culture
- The clinical significance of Exiguobacterium auranticum in a blood culture is not well-established, but it can be considered a potential contaminant 1.
- A study found that E. aurantiacum was isolated from a patient with bacteremia after radical prostatectomy, suggesting that it can cause infection in patients, especially those who are immunocompromised 1.
- The isolation of E. aurantiacum from a blood culture should be evaluated in the context of the patient's clinical presentation and medical history, as it may be a contaminant or a true pathogen 2, 3.
- Repeat blood cultures may be useful in differentiating true bacteremia from pseudobacteremia, and clinical criteria can be used to evaluate the significance of potential contaminants in blood cultures 2, 3.
- The clinical impact of extended blood culture incubation for 6 days or more is limited, and a routine extension of the incubation period may be unnecessary, which may help to reduce the detection of contaminants like E. aurantiacum 4.
- The management of patients with E. aurantiacum in a blood culture should be individualized, taking into account the patient's clinical condition, antibiotic susceptibility, and the results of repeat blood cultures, if available 1, 5.