Route-Specific Meningo-Ophthalmic and Orbitomeningeal Communications Relevant to Middle Meningeal Artery Embolization: A Systematic Review and Meta-Analysis.

Database searches identified 558 records.

Forty-five reports were sought for retrieval; 10 were not retrieved or were not available as assessable full-text reports after retrieval auditing.

After excluding the clinically selected chronic subdural hematoma subgroup, the estimate was 0.02 (95% CI 0.01 to 0.06; I 2 = 7.7%).

The meningolacrimal/lacrimal-middle meningeal artery route yielded an exploratory pooled proportion of 0.45 (95% CI 0.09 to 0.86; I 2 = 95.9%), with substantial anatomical and methodological heterogeneity.