Valproate treatment after liver transplant in a patient with Lennox–Gastaut syndrome
2011
Abstract Lennox–Gastaut syndrome (LGS) is a well-defined epileptic encephalopathy highly drug resistant. The first-line treatment option is valproate (VPA), usually in combination with lamotrigine. VPA has been linked to serious hepatotoxicity. We report a 22-year-old liver transplanted patient with LGS successfully treated with VPA in combination with phenobarbital (100mg/d; blood level: 36mg/l), lamotrigine (125mg/d; blood level: 4.81mg/l) and topiramtate (175mg/d), as well as immunosuppressive, antiviral, anti-anemic, hypo-phosphoric and alkaline medication. On VPA 1000mg/d, the seizure frequency decreased significantly. Taking into consideration the patient's good tolerance and the normal liver function, VPA was increased to 1500mg/d. At this dose the daily drop attacks and generalized tonic–clonic seizures totally ceased. The patient presented only some tonic seizures around awakening. During many years, VPA was avoided in this patient because of its potential hepatotoxicity. However the good functioning of the transplanted liver permitted its introduction. VPA can be used safely in liver transplanted patients under the strict control of the hepatic function.
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