MIGRAINE WITH PROLONGED AURA
\mˈa͡ɪɡɹe͡ɪn wɪð pɹəlˈɒŋd ˈɔːɹə], \mˈaɪɡɹeɪn wɪð pɹəlˈɒŋd ˈɔːɹə], \m_ˈaɪ_ɡ_ɹ_eɪ_n w_ɪ_ð p_ɹ_ə_l_ˈɒ_ŋ_d ˈɔː_ɹ_ə]\
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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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