Objective. To investigate the clinical features of idiopathic headache with early onset, whose presence is probably underestimated by parents and physicians and the influence of environmental and psychological factors on headache in children. Methods. We report on a prospective longitudinal evaluation of 35 consecutive children referred to the Neuropsychiatry Departments of the Universities of Varese and Pavia (mean age at the first observation: 4 years and 7 months, range: 12 months-6 years; mean age at onset: 4 years and 2 months, range: 10 months-6 years) presenting with headache symptomatology. Mean duration of clinical follow-up: 9.5 months. The diagnosis based on the IHS criteria was then compared to the intuitive clinical diagnosis made in accordance with alternative case definitions. We examined our patients for the presence of early developmental disorders and interictal somatic disorders. We also studied the role of psychosocial factors at the onset and in the course of headache. Results. Diagnosis: migraine without aura in two cases, episodic tension headache in four cases, migrainous disorders not fulfilling above criteria in eight cases, headache of the tension-type not fulfilling above criteria in 12 cases and headache not classifiable in nine cases. Clinical features of headache are described in the text. Early developmental disorders (0-2 years), such as eating difficulties and sleep disorders, were detected in 18/35 children. Among patients older than 2 years, we also detected interictal somatic disorders (20 cases) such as sleep disorders, eating difficulties, enuresis and idiopathic vomiting. In 14/35 subjects, we identified psychosocial components playing a significant role at the onset of, and during, the headache. Conclusions. 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 idiopathicheadache 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.
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