Introduction:

Infections caused by Leuconostoc lactis are rare and are associated with multiple risk factors. According to the literature reviewed, there are no reported cases of endocarditis caused by this microorganism in the pediatric population.

Case presentation:

An infant with short bowel syndrome was taken by his parents to the emergency department due to malnutrition. During his prolonged hospital stay, he presented multiple infections, so he required central venous catheter, prolonged enteral tube feeding and parenteral nutrition. In one of his nosocomial infection episodes, peripheral blood cultures were taken, and an echocardiogram was performed, achieving the diagnosis of endocarditis by L. lactis, which was treated with linezolid. After 21 days of treatment, the infectious process was controlled; however, in order to improve his condition and due to another bacteremia episode, he remained hospitalized. Finally, after 113 days, the patient was discharged, and comprehensive outpatient care was ordered.

Conclusion:

Although rare in the pediatric population, endocarditis by L. lactis should be suspected in patients with multiple risk factors and polymicrobial infections. Timely and specific treatment, as in the reported case, can help avoid future complications.

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