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  • Title: Visual symptoms and childhood migraine: Qualitative analysis of duration, location, spread, mobility, colour and pattern.
    Author: Ahmed M, Boyd C, Vavilikolanu R, Rafique B.
    Journal: Cephalalgia; 2018 Dec; 38(14):2017-2025. PubMed ID: 29629600.
    Abstract:
    AIM: To examine the characteristics of visual symptoms during attacks of migraine in children and adolescents. METHOD: A qualitative analysis of prospectively collected data over 5 years, on characteristics of visual symptoms during migraine attacks. Diagnosis of migraine and aura was based on the International Classification of Headache Disorders 3rd edition beta version. We also provided the opportunity for patients to illustrate their visual aura symptoms to aid in diagnosis. RESULTS: Visual symptoms were reported by 387/1079 (36%) of migraineurs. Of these, 172 (16%) patients fulfilled the International Classification of Headache Disorders Criteria A, B, C iv and D, but missed one (n = 75; 43.5%) or two (n = 97; 56.5%) of the remaining items of criteria C as the visual symptoms were of non-gradual spread (n = 35; 20%), appeared in both visual fields (n = 99; 58%), or lasted less than 5 minutes or more than 60 minutes (n = 129; 75%). CONCLUSION: The International Classification of Headache Disorders 3rd edition beta version criteria are useful in diagnosis of migraine with visual aura in children and adolescents, but visual symptoms varied considerably in duration, pattern, mobility, location, mode of onset and colours. Providing opportunity for patients to illustrate their symptoms can provide additional diagnostic information. The pathophysiology and the clinical concept of typical MVA is still to an extent an assumption and needs further evaluation. APPROVAL: The study was approved by the Health Research Authority - London and the local Research and Innovation Department at Barking Havering and Redbridge National Health Service Trust. Formal parental consent was not considered essential for this type of study.
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