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Classification of headache disorders

JA Jasem Youssef Al-Hashel
FA Fathi Abokalawa
MA Maram Alenzi
RA Raed Alroughani
SA Samar Farouk Ahmed
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A stepwise approach was applied to see if there was pre-existing primary headache disorder according to the ICHD-3 criteria [6]. Previous headaches presented by these patients were classified according to the third edition of the International Classification of Headache Disorders (ICHD-3). Patients were asked whether they considered the headache after COVID-19 to be similar or different to previous headaches. De novo headache was defined as new onset headache during or immediately after COVID-19 with no prior history of migraine. Characteristics of headache presented post COVID-19 were collected.

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