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We carried out a Hungarian multicentre study to assess the frequency of the occurrence of warning symptoms preceding epileptic seizure. The data of 562 patients with epilepsy out of a total of 1124 were analysed on the basis of questionnaires filled in under standard conditions. About 50% of the patients experienced warning symptoms before a smaller or greater part of their seizures. Their appearance was fairly consistent and became mainly manifested in the form of headache, epigastric sensation and dysphoria. In relation to epileptological basic data, it was found that warning symptoms appeared primarily in focal epilepsies and among them they mainly preceded generalized tonic clonic and complex partial seizures. Between the warning symptom and the onset of the seizure there was usually a longer interval during which (and generally also during the warning symptom) the patient remained able to act. About 20% of the patients enrolled in the study tried to inhibit the onset or mitigate the course of the seizure and about 10% judged their spontaneous activity carried out in that direction to be successful. The frequency of the occurrence of independent prognostic symptoms not followed by a seizure was relatively low, and among epileptics with warning symptoms the incidence of seizures occurring without a preceding event was not high either. Based on our experiences, we have drawn the conclusion that, in a significant part of epileptic patients, the warning symptoms render possible the supplementation of the therapy by the development of seizure-inhibiting or seizure-avoiding behaviour or activity.

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Authors report about a seemingly increase of the number of pediatric brain tumors in Borsod county region North-East Hungary. In a retrospective study they conclude, that this phenomenon may to a great extent be artificial, that is, it may reflect the improvement of diagnostic possibilities, above all the new imaging modalities. At their Institution the pattern of brain tumors is similar to that reported in the literature. In addition a racial difference has been detected, since the gipsy population of this region seems to have lower incidence of pediatric brain tumor than the Hungarian majority.

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The Menkes or kinky hair disease is a rare, sex-linked systemic disorder of the copper metabolism. It is lethal in the first three years due to cerebral and cerebellar degeneration. Apropos of their case the authors summarise the knowledge on the diagnosis, pathogenesis and therapy.

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Authors report about a boy with Rasmussen syndrome. This is a chronic localised encephalitis with focal epileptic seizures causing progressive neurologic deficits and mental impairment. The etiology and the clinical features of the syndrome are discussed, and the diagnostic role of the new imaging modalities is emphasized. This is the first report about this entity in Hungary.

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A case of Rasmussen's encephalitis is reviewed. Focal seizures and hemiparesis in a 5-year-old child progressed over a period of 2 1/2 years. Neuroimaging findings showed progressive atrophy of the right temporal lobe. The diagnosis of this syndrome is possible using a combination of the clinical symptoms and neuroimaging findings.

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Stroke in children has been considered to be the most important cause of acute infantile hemiplegia. The author studied 32 patients with childhood stroke. Of the patients 20 had ischemic stroke, and 12 had hemorrhagic stroke. There is an increase of ischemic stroke cases without known predisposing factors in spring. The possibility of nasopharyngeal infection of ischemic stroke in childhood is emphasized.

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Authors report about a girl with Landau-Kleffner syndrome. After the history of normal developmental milestones at the age of five-and-half year the patient had absence seizures, and marked receptiv and expressiv aphasia developed gradually. She was found to have Landau-Kleffner syndrome. This entity initially can be regarded as deafness or psychiatric reaction. The seizure activity usually has a favorable outcome, the aphasia can fluctuate for years. The improvement is more likely in promptly treated cases.

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A rare cause of urine incontinence is sacral agenesis based on genetic or teratogenic disturbances. Abnormalities of the gluteal region can help in diagnosis. The sacral agenesis may be demonstrated by using anteroposterior X-ray examination. The early diagnosis is very important for the therapy and for the prevention of late complications.

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Middle cerebral artery obstruction in children is reviewed by our two cases. Ischemic childhood stroke was caused by moyamoya disease in the first, and by fibromuscular dysplasia in the second patient. In both cases transcranial Doppler sonography and cranial CT were performed, but the final diagnosis was made by angiography. The importance of angiography in childhood stroke is emphasized.

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The authors describe two children with moyamoya disease, a rare cerebrovascular disorder characterised by progressive stenose of circle of Willis and a compensatory vascular network in basal ganglia. Both patients were presented by transient ischemic attack. The importance of hyperventilation in provoking symptoms is emphasized and the possible etiology, signs, classification, prognosis and therapeutic approaches are discussed. This is the first report of this entity in Hungary.

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The frequency of iron-deficiency anaemia was investigated in 376 children with the aid of serum ferritin determinations. The children, resident in Budapest or Miskolc were 6 months to 3 years old. Marked iron-deficiency (serum ferritin less than 10 micrograms/l) could be demonstrated in 33.8% of the investigated population. The frequency of iron-deficiency was related to the socio-economic and cultural status of the mother, a factor which is thought to influence the feeding habits. In areas where iron-deficiency is frequently detected regular iron-prophylaxis is recommended.

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