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KMID : 1100820160060030187
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Laboratory Medicine Online
2016 Volume.6 No. 3 p.187 ~ p.190
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A Case of Septic Shock Following Catheter-related Infection Caused by Lactococcus lactis subsp. lactis in an Adult
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Bae Tae-Won
Lee Jae-Hyeon
Lee Hye-Soo
Cho Yong-Gon
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Abstract
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Lactococcus lactis is a gram-positive cocci used extensively in the dairy industry, but considered an unusual pathogen in humans. Among its five subspecies, L. lactis subsp. lactis in particular has rarely been reported as a pathogen. We report a case of septic shock caused by L. lactis subsp. lactis in an adult patient. A 64-yr-old male patient was admitted to outpatient clinics, with chief complaints of fever and chills for one week after convalescent hospital admission. He had severe ileus requiring surgery. He had a peripherally inserted central catheter from convalescent hospital, which was immediately removed. From two sets of blood and catheter tip cultures, we identified L. lactis subsp. lactis using the Vitek 2 system (bioMerieux Inc., USA), and confirmed this result by 16S rRNA sequencing. The patient was empirically treated with ciprofloxacin, and he recovered and was discharged.
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KEYWORD
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Lactococcus lactis subsp. lactis, Catheter-related infections, Septic shock
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