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Catheter-Related Bloodstream Infection with Leclercia adecarboxylata and Enterobacter cloacae Complex Co-Infection: A
Po-Hsiu Huang1, Po-Yu Liu1,2,3, Hsien-Po Huang1
1Division of Infectious Diseases, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan.
Abstract:
Catheter-related bloodstream infections (CRBSIs) caused by Leclercia adecarboxylata are uncommon, and polymicrobial cases are even rarer. We report the first documented case caused by co-infection with Leclercia adecarboxylata and Enterobacter cloacae complex (ECC) in a woman with breast cancer undergoing chemotherapy through an indwelling chemoport. Antimicrobial susceptibility testing revealed that both isolates were susceptible to β-lactams, quinolones, and aminoglycosides. The patient achieved complete clinical recovery following intravenous ciprofloxacin therapy and prompt removal of the chemoport. This case highlights the emerging clinical relevance of Leclercia adecarboxylata and Enterobacter cloacae complex as potential pathogens capable of causing polymicrobial bloodstream infections in immunocompromised hosts and underscores the importance of considering rare environmental Gram-negative organisms as potential causes of catheter-related infections, particularly in patients with malignancy or long-term vascular access.
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