Chronic migraine and medication overuse headache
Keyword(s):
Work Up
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Thunderclap headache refers to the abrupt onset of a severe headache. Characteristics of the pain are not strictly defined, but intensity is considered to peak in seconds to a minute. This chapter focuses on the work-up of alert neurologically intact patients presenting with an acute and severe headache, not related to trauma. Work-up to detect or exclude a subarachnoid haemorrhage is described first, followed by an overview of investigations to detect a cerebral aneurysm. Thereafter, other secondary causes of thunderclap headache and their suitable analysis will be discussed, followed by a brief overview of primary thunderclap headaches.