Abstract
Rupture of SIA causes thunderclap headache but it remains unclear whether headache in general and migraine in particular is more prevalent in patients with unruptured SIA.
Highlights
Rupture of saccular intracranial aneurysms (SIA) causes thunderclap headache but it remains unclear whether headache in general and migraine in particular is more prevalent in patients with unruptured SIA
Diagnosis were made according to the International Headache Society criteria
Aneurysms were diagnosed by conventional cerebral angiography
Summary
Aims In this case-control study we estimate the prevalence of headaches in patients with SIA during 1 year before rupture
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