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    This study evaluated the efficacy of a single dose of phenytoin/fosphenytoin (PHT) to control repetitive seizures in children with benign convulsions with mild gastroenteritis (CwG). Children aged between 3 months and 5 years with CwG were retrospectively enrolled. Convulsions with mild gastroenteritis were defined as (a) seizures with acute gastroenteritis without fever or dehydration; (b) normal blood laboratory results; and (c) normal electroencephalography and brain imaging findings. Patients were divided into two groups according to whether or not intravenous PHT (10 mg/kg of phenytoin or phenytoin equivalents) was administered. Clinical manifestations and treatment efficacy were evaluated and compared. Ten of 41 children eligible for inclusion received PHT. Compared to children in the non-PHT group, those in the PHT group had a higher number of seizures (5.2 ± 2.3 vs. 1.6 ± 1.0, P < 0.001) and a lower serum sodium level (133.5 ± 3.2 mmol/L vs. 137.2 ± 2.6 mmol/L, P = 0.001). Initial serum sodium levels were negatively correlated with seizure frequency (r = -0.438, P = 0.004). In all patients, seizures were completely resolved with a single dose of PHT. There were no significant adverse effects from PHT. A single dose of PHT can effectively treat CwG with repetitive seizures. The serum sodium channel may play a role in seizure severity.


    Keun Soo Lee, Bo Lyun Lee. Efficacy of single dose of phenytoin/fosphenytoin in benign convulsions with mild gastroenteritis. The Turkish journal of pediatrics. 2023;65(1):109-117

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    PMID: 36866990

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