History
The importance of severe headaches in the diagnosis of subarachnoid hemorrhage has been known since the 1920s, when London neurologist Charles Symonds described the clinical syndrome. The term "thunderclap headache" was introduced in 1986 in a report by John Day and Neil Raskin, neurologists at the University of California, San Francisco, in a report of a 42-year old woman who had experienced several sudden headaches and was found to have an aneurysm that had not ruptured.
Read more about this topic: Thunderclap Headache
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