The Use of Daptomycin and Linezolid to Treat Vancomycin-Intermediate Staphylococcus haemolyticus Infection in a...

Area of Science:

• Infectious Diseases
• Neonatal Medicine
• Neurosurgery

Background:

• Staphylococcal infections, particularly coagulase-negative staphylococci (CoNS), pose a significant risk following neurosurgical procedures.
• Premature infants with complex medical histories are especially vulnerable to such infections.

Observation:

• A 105-day-old premature infant (25 weeks gestation) developed a CoNS infection at the ventricular shunt site.
• Initial treatment with vancomycin and rifampin was complicated by vancomycin intermediate resistance.
• Subsequent linezolid monotherapy failed to clear the persistent infection.

Findings:

• Successful eradication of the resistant CoNS infection was achieved using a combination of daptomycin and linezolid.
• This treatment regimen was administered for two weeks following external ventricular drain removal and preceded new shunt insertion.
• The patient completed a total of four weeks of therapy without recurrence, marking the first reported use of daptomycin for CNS infection in a premature infant.

Implications:

• Daptomycin, in combination with linezolid, represents a viable therapeutic option for treating resistant CoNS central nervous system infections in neonates.
• This case underscores the importance of susceptibility testing and adaptable treatment strategies in managing neurosurgical infections in vulnerable premature infants.
• Further research into the efficacy and safety of daptomycin in neonatal CNS infections is warranted.