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Outcome after acute osteomyelitis in preterm infants
J B Williamson1, C S Galasko, M J Robinson
1Hope Hospital, Salford.
Insights
Skeletal infections in preterm infants often present with systemic illness and polymorpholeucocytosis. Staphylococcus aureus is a common pathogen, and while fusidic acid shows effectiveness, long-term orthopedic complications are frequent despite prompt treatment.
Area of Science:
- Pediatric Infectious Diseases
- Neonatal Osteomyelitis
- Bacterial Pathogenesis
Background:
- Skeletal infections pose significant risks to preterm infants.
- Systemic illness and polymorpholeucocytosis are common indicators.
- Early diagnosis is crucial for effective management.
Purpose of the Study:
- To investigate the characteristics of skeletal infections in preterm infants.
- To identify common pathogens and effective treatment strategies.
- To assess the incidence of long-term orthopedic sequelae.
Main Methods:
- Retrospective case series of eight preterm infants with skeletal infections.
- Diagnosis confirmed by blood culture and radiographic imaging.
- Treatment regimens and patient outcomes were analyzed.
Main Results:
- Infection frequently presented as multifocal, with the knee being a common site.
- Staphylococcus aureus was identified in six of eight cases.
- Fusidic acid demonstrated efficacy and tolerability, even at sub-therapeutic doses.
Conclusions:
- Prompt diagnosis and aggressive treatment are essential for skeletal infections in neonates.
- Orthopedic sequelae remain a common complication despite optimal care.
- Further research into optimal dosing and long-term management is warranted.
Abstract:
Eight cases of skeletal infection in preterm infants were studied. All the infants were systemically unwell, with polymorpholeucocytosis. Diagnosis was by blood culture, and any radiographic changes were apparent at the time of presentation. Infection was often multifocal, with sites around the knee being most commonly affected. Staphylococcus aureus was the pathogen isolated in six of the eight cases; in these treatment with fusidic acid was effective and well tolerated, even at doses that were less than the recommended therapeutic minimum. Even with prompt diagnosis and aggressive treatment orthopaedic sequelae are common.