Our results suggest that the ICHD-II criteria are too restrictive to allow the classification of migraine without aura and TTH in preschool children. Nevertheless, a diagnosis based on these criteria was possible in all the patients with headache persistence at the end of several years' follow-up. We found a significant association between early somatic disorders and persistence of headache and also between the presence of psychiatric disorders at the end of follow-up and the persistence of headache. "Life events," on the other hand, while not showing a statistically significant association with the evolution of the headache, may nevertheless influence the course of the headache in some patients. Our results suggest that environmental and psychological factors play an important role in idiopathic headache with onset in preschool age, and thus that the diagnostic-therapeutic approach must take these factors into account.
The present study supports the hypothesis of a possible clinical continuum between some types of MWA and epileptic syndromes as entities due to altered neuronal excitability with similar genetic substrates.
A better clinical definition of the disorder would make it easier to identify very young affected children and consequently to plan more specific therapeutic interventions, taking into account environmental and psychological factors. A diagnosis of idiopathic headache becomes particularly significant: according to our cases, despite their being limited in number, migraine and tension headache can be considered also as indices of individual or family related problems requiring appropriate psychiatric or psychological intervention. This stresses the need for a multidisciplinary team of specialists that would include a psychologist/ psychiatrist or headache specialist with specific training in psychiatry.
Before starting antiepilepsy therapy (T1) and after 1 year (T2), 19 children (7 female) affected by focal or generalized idiopathic epilepsy were considered with the aim of studying attention performance. All of the children received a neurological examination and clinical interview, electroencephalography (EEG) in wakefulness or sleep, and a standardized computerized measure of attention (Conners' Continuous Performance Test). At T1, 21% of the patients showed a specific attention disorder, and their percentage rose to 42% after 1 year, despite complete control of seizures. The prognosis was strongly correlated with (1) the presence of active seizures for a period of over 6 months, (2) the persistence of specific interictal abnormalities on an electroencephalogram at T2, and (3) the presence of emotional and behavioral disorders at the diagnosis of epilepsy. Our results confirm that attention disorders are frequent in children with idiopathic epilepsy. The Conners' Continuous Performance Test has proven useful both for diagnosis and follow-up over time.
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