Ohtahara Syndrome: Next-Line Protocol When Antiepileptic Drug Therapy Fails to Control Seizures

Ohtahara syndrome is a severe early-onset epileptic encephalopathy in which achieving control of seizures is the central clinical priority. For patients whose initial antiepileptic drug regimen has not met this goal, a structured next-line approach is available.

Previous Treatment & Reason for Escalation

First-line antiepileptic drug therapy — including phenobarbital, valproate, pyridoxine, zonisamide, or benzodiazepines — is supported only by anecdotal evidence and shows limited effectiveness in controlling seizures in Ohtahara syndrome. When seizures remain uncontrolled despite this regimen, escalation to a next-line protocol is indicated.

Next-Line Treatment Approach

The structured next-line protocol for this scenario centres on a hormonal therapy approach. The complete evidence-based regimen — including selection criteria, sequencing, and clinical decision points — is set out in the full protocol.

Clinical Goal

Control of seizures.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1016/j.pediatrneurol.2012.06.002

Adrenocorticotropic hormone therapy also exerts limited efficacy, and may be particularly beneficial in cases of Ohtahara syndrome that progress to West syndrome.

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