Mycoplasma hominis endocarditis in a child with a complex congenital heart defect

Samuel R Dominguez1, Cyndi Littlehorn, Ann-Christine Nyquist

  • 1University of Colorado School of Medicine, Denver, CO 80010, USA. samueldominguez@uchsc.edu

Insights

A rare pediatric Mycoplasma endocarditis case occurred post-surgery in a child with congenital heart disease. This finding highlights Mycoplasma as a potential cause of culture-negative endocarditis in pediatric patients.

Area of Science:

  • Pediatric Cardiology
  • Infectious Diseases
  • Cardiovascular Surgery

Background:

  • Congenital heart defects (CHDs) are common pediatric cardiovascular conditions requiring surgical intervention.
  • Endocarditis, an infection of the heart's inner lining, can occur post-cardiac surgery.
  • Mycoplasma species are known pathogens but rarely implicated in endocarditis, especially in pediatric populations.

Observation:

  • A 4-year-old girl with a complex CHD underwent surgical repair.
  • Following surgery, the patient developed symptoms suggestive of endocarditis.
  • Standard blood cultures were negative for bacterial growth.

Findings:

  • The patient was diagnosed with Mycoplasma endocarditis, a novel finding in a pediatric case.
  • This represents the first reported instance of Mycoplasma endocarditis in a child.
  • The diagnosis was confirmed despite negative conventional cultures, suggesting atypical pathogens.

Implications:

  • This case expands the differential diagnosis for culture-negative endocarditis in children.
  • It underscores the importance of considering Mycoplasma in pediatric post-surgical endocarditis.
  • Further research is warranted to understand the prevalence and management of Mycoplasma endocarditis in pediatric populations.

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