Intrathecal Dexamethasone as a FIRES Extinguisher: A 12-Patient Clinical Experience with Usage of Intrathecal Dexamethasone for Febrile Infection-Related Epilepsy Syndrome.

Background: New-onset refractory status epilepticus (NORSE) is a devastating condition with high mortality and poor long-term outcomes. Febrile infection-related epilepsy syndrome (FIRES) is a subset of NORSE, preceded by fever. Intrathecal dexamethasone (IT-DEX) has emerged as a potential treatment, but few cases have been reported.

Clemastine rescues myelination defects and promotes functional recovery in hypoxic brain injury.

Hypoxia can injure brain white matter tracts, comprised of axons and myelinating oligodendrocytes, leading to cerebral palsy in neonates and delayed post-hypoxic leukoencephalopathy (DPHL) in adults. In these conditions, white matter injury can be followed by myelin regeneration, but myelination often fails and is a significant contributor to fixed demyelinated lesions, with ensuing permanent neurological injury. Non-myelinating oligodendrocyte precursor cells are often found in lesions in plentiful numbers, but fail to mature, suggesting oligodendrocyte precursor cell differentiation arrest as a critical contributor to failed myelination in hypoxia.