Lumbar epidural blood patch: effectiveness on orthostatic headache and MRI predictive factors in 101 consecutive patients affected by spontaneous intracranial hypotension

Abstract

Lumbar EBP may be considered safe and effective in cases of drug-refractory SIH. The presence of a preprocedural PMA < 40° and location of the iter > 2 mm below the incisural line were the most significant predictors of good outcome. Randomized prospective clinical trials comparing lumbar with targeted EBP are warranted to validate these results.