ABSTRACT
BACKGROUND: Approximately 3.9% children with migraine have olfactory hallucination which was defined as a perception of a smell without the substantial existence of any physical odor. CASE: We described the first two cases of children with vestibular migraine, presenting visual aura and olfactory hallucination. â We reported two children with vertigo, visual aura, and olfactory hallucination before the headache who were responsive to topiramate. CONCLUSION: The clinical description of olfactory hallucination presented some characteristics of migraine aura. Olfactory hallucinations could be inserted as a migraine aura in International Classification of Headache Disorders.
Subject(s)
Hallucinations/physiopathology , Migraine with Aura/physiopathology , Olfactory Perception/physiology , Vertigo/physiopathology , Visual Perception/physiology , Adolescent , Child , Female , Hallucinations/etiology , Humans , Migraine with Aura/complications , Vertigo/etiologyABSTRACT
The aim of this study was to evaluate the visual attention of children with migraine and compare it with a control group. Thirty migrainous children and 30 controls without headache were subjected to a visual attention assessment with Trail Making Tests (TMT) A/B, Letter Cancellation Test, and the Brazilian computerized test Visual Attention Test, third edition. The migraine group was evaluated after 2 days without headache. The migraine group had an inferior performance compared with the control group on TMT A (P = 0.03) and B (P = 0.001), and more errors on tasks 1 (P = 0.032) and 2 (P = 0.015) of the Visual Attention Test, presenting difficulty with selective and alternate attention. Attention is a neurological function that depends on structures such as the brainstem, cerebral cortex and the limbic system and on neurotransmitters such as dopamine and noradrenaline. The neurochemical aspects involved in the physiopathology of migraine and attention mechanisms probably predispose these children to visual attention deficits.
