Salvage Treatment of Ventilator-Associated Pneumonia Using Sulbactam-Durlobactam in a Preterm Neonate: A Case Report
Abstract
Background: Ventilator-associated pneumonia (VAP) is a leading cause of nosocomial infections in neonatal intensive care units (NICUs) and is associated with significant morbidity, mortality, and prolonged hospitalization, particularly in preterm neonates. Management is complicated by the emergence of multidrug-resistant (MDR) and extensively drug-resistant (XDR) pathogens, with very limited evidence supporting the use of reserve antibiotics in this population.
Case presentation: We report a male neonate born at 25 weeks of gestation (birth weight 740 g) who developed severe VAP caused by XDR Acinetobacter calcoaceticus-baumannii complex and Pseudomonas aeruginosa. After failure of multiple antibiotic regimens, including ampicillin, amikacin, meropenem, vancomycin, cefepime with inhaled colistin, tigecycline, and ceftazidime-avibactam combined with fosfomycin, the infant was treated with sulbactam-durlobactam (25 mg/kg/dose every 6 h) in combination with ceftazidime-avibactam. After 12 days of this regimen, the neonate was successfully extubated.
Conclusions: This case highlights the therapeutic challenges of XDR infections in extremely preterm neonates and suggests that sulbactam-durlobactam may represent a viable salvage treatment option. Further pharmacokinetic and clinical studies are needed to establish optimal dosing and safety in the neonatal population.
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