Sinogenic Intracranial Suppuration in Children: Systematic Review and Meta-analysis

To evaluate temporal trends in the management of sinogenic intracranial suppuration and its outcomes in children.

A systematic search of databases was performed (Medline, Embase, Cochrane, ClinicalTrials.gov).

Studies in children (age <18 years) with sinogenic subdural empyema, extradural abscess, and intraparenchymal abscess were included. Data on treatment strategies were extracted. Primary outcome was death <90 days. Secondary outcomes were return to theater, neurologic disability at 6 months, and length of stay. Random effects meta-analysis and meta-regression were performed to investigate the effect of time and endoscopic sinus surgery (ESS) on these outcomes.

A total of 32 retrospective observational studies involving 533 patients recruited across a 45-year period (1975-2020) were included. The pooled estimates for 90-day mortality, permanent neurologic disability, and return to theater were 2.3% (95% CI, 1.1%-3.6%; I² = 0, P > .99), 21.3% (95% CI, 15.3%-27.3%; I² = 75.2%, P < .001), and 37.3% (95% CI, 29.5%-45%; I² = 71.2%, P < .001), respectively, with no significant differences found across the study period. The pooled estimate for ESS was 58.4% (95% CI, 44.2%-72.6%; I² = 97.1%, P < .001) with a significantly increasing trend in its use in the more recent years. ESS was not associated with improved mortality, reduced need for revision surgery, or neurologic disability.

The outcomes of sinogenic intracranial complications have not changed over the last 45 years, and ESS was not associated with improved patient outcomes. Further high-quality studies are required to determine the most appropriate treatment modalities to improve the burden of morbidity associated with sinogenic intracranial suppuration in children.