Topical Review: Brain Abscess in Children: Microbiology and Management

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Abstract
Brain abscess is a serious, life-threatening infection. The infection can originate from contiguous sites of existing infections, such as chronic otitis media, dental infection, mastoiditis, or sinusitis, where anaerobic bacteria predominate. The infection can also occur in children with cyanotic congenital heart disease, in whom the predominant organisms are viridans, microaerophilic, or anaerobic streptococci, or after head trauma, in which case Staphylococcus aureus, viridans cocci, and Streptococcus pneumoniae are the most prevalent isolates. Enterobacteriaceae, Pseudomonas aeruginosa, yeast, fungi, and mycobacteria are prevalent in the immunocompromised. Radioisotope brain scans, computed tomography, and magnetic resonance imaging are important tools that enable accurate diagnosis of the infection. Proper selection of antimicrobial with good intracranial penetration is essential in the management of intracranial infection. Delay in surgical drainage can be associated with high mortality or morbidity. However, brain abscess, especially in the early phase of cerebritis, may respond to antimicrobial therapy without surgical drainage. (J Child Neurol 1995;10:283-288).

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