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  • Title: Outcome of juvenile headache in outpatients attending 23 Italian headache clinics. Italian Collaborative Study Group on Juvenile Headache (Società Italiana Neuropsichiatria Infantile [SINPI]).
    Author: Mazzotta G, Carboni F, Guidetti V, Sarchielli P, Feleppa M, Gallai V, Mastropaolo C, Puca F.
    Journal: Headache; 1999; 39(10):737-46. PubMed ID: 11284460.
    Abstract:
    A multicenter 3-year follow-up study was carried out on young patients with headache referred to tertiary headache centers or pediatric clinics. Three years after the first examination in 1993, 442 (of an original sample of 719) young outpatients with headache (226 females and 216 males) were re-examined. The diagnostic criteria of the International Headache Society (IHS) and those modified for migraine without aura by Winner et al were applied at both the baseline evaluation and the 3-year re-examination. At the follow-up, 290 children still had headache, 101 were in clinical remission, and 51 had dropped out. Using the current diagnostic criteria, only 46.2% of patients having migraine without aura, 50% of those having migraine with aura, and 35.3% of those suffering from migraine disorders which do not fulfill IHS criteria for migraine received the same diagnosis at the time of follow-up. The percentage of patients receiving a diagnosis of migraine without aura rose significantly when new modified criteria were used (60.5%), whereas a drop in the frequency of migraine disorders not fulfilling IHS criteria was observed at follow-up, both in patients with the diagnosis of migraine without aura at the first examination (4.6%) and in patients with migraine not always fulfilling IHS criteria at the first examination (6.2%). Among all patients who received this latter diagnosis at the first examination, it was possible to make a diagnosis of migraine with aura at the follow-up in 8.8% of cases and that of migraine without aura in 26.5%. No significant variations in the frequency of either episodic tension-type headache or chronic tension-type headache were found, with the exception of a slight decrease in the percentage of tension-type headache which did not fulfill IHS criteria, but the difference between the first examination and the follow-up values does not reach the level of statistical significance (5% versus 12%). As far as the evolution of migraine is concerned, 17.4% of patients with migraine were headache-free at the 3-year follow-up. In tension-type headache, the percentage of patients who were headache-free was particularly high in those with the episodic form (32.9%) and in those suffering from tension-type headache not fulfilling IHS criteria (29.1%). The majority of patients who had been diagnosed as having unclassifiable headache at the first examination received a correct diagnosis at the follow-up with the exception of one patient. As observed in adult patients, variations in the headache characteristics were also observed in children and adolescents (that is, migraine with aura can change to migraine without aura, or the latter can transform into episodic tension-type headache or chronic tension-type headache can change into the episodic form). This follow-up study was aimed at reaching a better understanding of headache disturbances in children and adolescents, examining, in particular, variations of headache with time in this stage of life.
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