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Circadian Fluctuations in Onset of Subarachnoid Hemorrhage Stroke 28:805-808, Vermeer,S.E.,et al, 1997 See this aricle in Pubmed Article Abstract The risk of aneurysmal rupture was lower at night(from 12 PM to 6 AM)in our series and in the pooled-data series.risk remained high throughout the day and evening,with a nadir around noon.For perimesencephalic hemorrhage, we found the same fluctuation in onset but without a nadir around noon.The risk of aneurysmal SAH is low during the night and at noon and high during working hours.This circadian fluctuation parallels that of blood pressure and suggests that an increase in blood pressure is a risk factor for aneurysmal rupture.

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(click to filter results - removes previous filter) aneurysm aneurysm,intracranial blood pressure blood pressure,circadian rhythm cerebrovascular accident,circadian rhythm cerebrovascular accident,time of onset circadian rhythm subarachnoid hemorrhage subarachnoid hemorrhage,perimesencephalic

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