Improvement of post-hypoxic action myoclonus with levetiracetam add-on therapy: A case report

Abstract

Introduction.Chronic post-anoxic myoclonus, also known as Lance-Adams syndrome, may develop following hypoxic brain injury, and is resistant to pharmacological therapy. Case report. The patient we presented developed post-anoxic action myoclonus with severe, completely incapacitating myoclonic jerks. Myoclonus did not respond to the treatment with commonly used agents, i.e. valproate and clonazepam alone or in combination. Improvement of the action myoclonus was observed only after adding levetiracetam. Conclusion. Although Lance-Adams syndrome may not be fully curable at this point, levetiracetam appears to be a promising agent that can significantly improve functional level and overall quality of life of patients with this disorder.

Add-on perampanel in Lance–Adams syndrome

“…They may not only be part of various epilepsy syndromes but also occur as the result of nonepileptic pathogenesis as a cerebellar phenomenon in patients with posthypoxic brain damage which is well-known as so-called Lance–Adams syndrome. Although the action myoclonus in Lance–Adams syndrome is usually not of epileptic origin, antiepileptic drugs are recommended for its treatment [11] , [12] , [13] , [14] , [15] . In addition, piracetam has been recommended [16] .…”