Is there any seasonal influence in spontaneous bleeding of intracranial aneurysms and/or arteriovenous malformations in Istanbul? A hospital based study

Abstract

Principles: Despite many reports investigating the relationship of subarachnoid haemorrhage and seasonal variation in different parts of the world, there is no clear correlation. As far as we know this subject has not been reported from Istanbul yet. The purpose of this study is to determine if there is any correlation between season and spontaneous subarachnoid haemorrhage (SAH) caused by intracranial aneurysms and/or arteriovenous malformations (AVM) in Istanbul.