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  • Title: Rating of olfactory judgements in migraine patients.
    Author: Demarquay G, Royet JP, Giraud P, Chazot G, Valade D, Ryvlin P.
    Journal: Cephalalgia; 2006 Sep; 26(9):1123-30. PubMed ID: 16919063.
    Abstract:
    The aim of this study was to evaluate olfactory hypersensitivity (OHS) between attacks in migraine patients. Seventy-four migraine patients and 30 controls were enrolled. The presence of OHS was evaluated using an oral questionnaire and a chemical odour intolerance index. Subjects had to rate the intensity and hedonicity of 12 odourants using a linear rating scale. Twenty-six patients (35.2%) but no control subjects reported an interictal OHS (P<0.001). Logistic regression analysis showed that patients with OHS presented a greater attack frequency, a higher number of odour-induced migraines and visual hypersensitivity when compared with other patients. Disease duration, age, gender and auditory hypersensitivity were not associated with OHS. OHS patients judged odours less pleasant than did other patients and controls, whereas the intensity scores were identical in both groups. OHS between attacks was significantly associated with odour-triggered migraine and an alteration of hedonic judgement.
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