Comparative efficacy of intravenous versus intravenous combined with intrathecal/intracerebral ventricle injection of polymyxin B for Acinetobacter baumannii intracranial infection: A retrospective study

The combination of IV and IVT/ITH polymyxin B administration represents an effective therapeutic strategy for A. baumannii infections, demonstrating higher cure rates, significantly reduced 30-d mortality, and a substantial survival advantage. Notably, ITH/IVT treatment does not appear to increase the incidence of neurotoxicity. However, the true incidence of neurotoxicity associated with IVT/ITH polymyxin B may be underestimated.