A Case of Catheter Related Septicemia Caused by Corynebacterium jeikeium

Area of Science:

• Medical Microbiology
• Infectious Diseases
• Hematology

Background:

• Corynebacterium species are increasingly recognized as significant pathogens, particularly in patients with compromised immune systems.
• Immunosuppression, often associated with conditions like acute myeloblastic leukemia, increases susceptibility to opportunistic infections.
• Microorganisms traditionally considered normal flora are gaining importance as potential causes of serious infections.

Purpose of the Study:

• To report a case of catheter-related septicemia caused by Corynebacterium jeikeium in a pediatric patient with acute myeloblastic leukemia.
• To emphasize the clinical importance of Corynebacterium species, which were previously often disregarded as contaminants.
• To raise awareness regarding the potential pathogenicity of normal flora in immunocompromised hosts.

Main Methods:

• Case report detailing a 15-year-old female patient diagnosed with acute myeloblastic leukemia.
• Documentation of the development of catheter-related septicemia.
• Identification of the causative agent as Corynebacterium jeikeium through microbiological analysis.

Main Results:

• The patient developed severe sepsis attributed to Corynebacterium jeikeium infection.
• The infection was associated with the presence of a central venous catheter.
• Corynebacterium jeikeium, a member of the normal flora, was identified as the pathogen.

Conclusions:

• Corynebacterium jeikeium can cause significant bloodstream infections, including catheter-related septicemia, in immunocompromised patients.
• The clinical microbiology laboratory should re-evaluate the significance of Corynebacterium isolates, especially in vulnerable patient populations.
• Opportunistic pathogens from the normal flora require careful consideration in the management of infections in immunosuppressed individuals.