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Lactococcus lactis Endocarditis in an Immunocompromised Patient
Austin Mitchell1, Sarah Gorn1, Alex Cheung1
1Mountain Vista Medical Center, Midwestern University, 10238 E Hampton Ave Ste 200, Mesa, AZ 85209, USA.
Case Reports in Infectious Diseases
|November 18, 2022
Summary
Lactococcus lactis bacteremia is rare but can occur in immunocompromised patients. This case highlights successful treatment with ceftriaxone, emphasizing the need for better identification of this common fermenting agent in clinical settings.
Area of Science:
- Medical microbiology
- Infectious diseases
- Clinical case study
Background:
- Lactococcus lactis, a common fermenting agent, is infrequently reported in medical literature due to potential identification challenges.
- Rarely documented infections underscore the need for increased awareness and diagnostic vigilance for L. lactis.
Observation:
- An 80-year-old immunocompromised female presented with L. lactis bacteremia.
- Aortic valve vegetation was identified in the patient.
- The patient had a history of immunosuppression.
Findings:
- Lactococcus lactis bacteremia was confirmed.
- The patient received a six-week course of ceftriaxone.
- Clinical improvement was observed following antibiotic therapy.
Implications:
- This case highlights a rare instance of L. lactis infection, emphasizing its potential in immunocompromised hosts.
- Accurate identification of L. lactis is crucial for appropriate medical management.
- Ceftriaxone demonstrated efficacy in treating L. lactis bacteremia and associated endocarditis.
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