MIGRAINE AURA WITHOUT HEADACHE
\mˈa͡ɪɡɹe͡ɪn ˈɔːɹə wɪðˌa͡ʊt hˈɛde͡ɪk], \mˈaɪɡɹeɪn ˈɔːɹə wɪðˌaʊt hˈɛdeɪk], \m_ˈaɪ_ɡ_ɹ_eɪ_n ˈɔː_ɹ_ə w_ɪ_ð_ˌaʊ_t h_ˈɛ_d_eɪ_k]\
Definitions of MIGRAINE AURA WITHOUT HEADACHE
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A condition characterized by throbbing headaches which are preceded or accompanied by reversible symptoms that reflect cortical or brain stem dysfunction. The most common type of aura consists of a positive visual phenomenon, usually in the form of a scintillating scotoma. An aura may also take the form of other focal neurologic symptoms or signs, including loss of sensation or weakness in an extremity. In general, the aura precedes the headache by less than 60 minutes, develops over 4 minutes or longer, and has a duration of less than one hour. (From Adams et al., Principles of Neurology, 6th ed, p172; Cephalalgia 1988;8:Suppl 7:1-96)
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- Regular instituted 1120, St. Norbert (whence Norbertines), at Premonstratum [L. , pointed out, it was said, by the Virgin], in Picardy. They were also called White Canons, from colour of their dress.