Journal of child neurology
-
In children with partial epilepsy, there is increasing evidence to suggest that not all cortical regions showing glucose hypometabolism on positron emission tomography (PET) represent epileptogenic cortex but that some hypometabolic areas might be the result of repeated seizures. Most of the supportive data, however, have come from cross-sectional imaging studies. To evaluate longitudinal changes in cortical glucose hypometabolism, we compared two sequential [(18)F]fluorodeoxyglucose (FDG) PET scans performed 7 to 44 months apart in 15 children with intractable nonlesional partial epilepsy. ⋯ In contrast, patients whose seizure frequency had decreased below daily seizures between the first and second PET scans showed a decrease in the size of the hypometabolic cortex. These results support the notion that the extent of cortical glucose hypometabolism on PET scanning can undergo dynamic changes, and these are, at least partly, related to the frequency of seizures. The findings have implications on how aggressively persistent seizures should be treated in children. (J Child Neurol 2006;21:26-31).
-
Seizures are a common neurologic symptom of tuberous sclerosis complex. The use of levetiracetam as adjunctive antiepileptic therapy was assessed in 20 patients with tuberous sclerosis complex aged 2 to 19 years. In this retrospective evaluation, 40% of patients treated with levetiracetam achieved a seizure reduction of more than 50%. ⋯ The most commonly reported adverse events were behavioral problems. Unstable gait, insomnia, poor appetite, and increased seizure frequency were also reported. Based on these results, the use of levetiracetam as adjunctive antiepileptic therapy can reduce seizure frequency in patients with tuberous sclerosis complex. (J Child Neurol 2006;21:53-57).
-
Chronic daily headaches can be a difficult problem in children as well as adults. Over half of the cases of chronic daily headaches in adults are thought to be due to medication-overuse headache, and treatment consists of discontinuation of these analgesics. Since many patients are also treated with preventive agents at the time of analgesic withdrawal, it is difficult to determine whether discontinuation alone is the most effective treatment. ⋯ A previous duration of headaches over 2 years was negatively correlated with overall outcome. We advise discontinuation of analgesics in all children with medication-overuse headache, without the necessity for starting daily preventive agents concurrently. Should headaches persist after 1 month, such agents can be added. (J Child Neurol 2006;21:45-48).