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Staphylococcus Aureus Panton-Valentine Leukocidin causing hip osteomyelitis, thrombophlebitis and necrotizing

M S Cori1, G Ronconi2, E Masiello1

  • 1Pediatric Institute Catholic University of the Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome Italy.

Journal of Biological Regulators and Homeostatic Agents
|August 29, 2020
PubMed

Insights

Panton-Valentine leukocidin (PVL) is a dangerous toxin from Staphylococcus aureus. This case highlights severe PVL-associated osteomyelitis in a child, stressing the need for early recognition and management.

Area of Science:

  • Microbiology
  • Toxicology
  • Infectious Diseases

Background:

  • Panton-Valentine leukocidin (PVL) is a key virulence factor in Staphylococcus aureus, responsible for leukocyte destruction and tissue necrosis.
  • PVL-producing Staphylococcus aureus (PVL-SA) infections, particularly osteomyelitis, pose significant clinical challenges.
  • Data on PVL-SA prevalence in Italy are limited, potentially leading to under-recognition.

Observation:

  • A pediatric case of hip joint osteomyelitis with associated thrombophlebitis, necrotizing pneumonia, and septic shock is presented.
  • The patient required extensive intensive care unit (ICU) support, including mechanical ventilation and circulatory support.
  • Management involved surgical drainage and prolonged second-line antibiotic therapy.

Findings:

  • The case underscores the severe complications associated with PVL-SA osteomyelitis in children.
  • Over half of PVL-SA strains in Europe are Methicillin-Susceptible Staphylococcus Aureus (MSSA), complicating initial treatment decisions.
  • Diagnostic challenges exist due to the variable availability of PVL testing.

Implications:

  • Early recognition of clinical features suggestive of PVL-SA osteomyelitis in pediatric patients is crucial.
  • Prompt and adequate management, including appropriate antibiotic selection and surgical intervention, is vital for patient outcomes.
  • Further epidemiological studies on PVL-SA prevalence in Italy are needed to guide clinical practice and public health strategies.

Keywords:
Staphylococcus aureus infectionchildosteomyelitis

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