Magnesium in subarachnoid hemorrhage

Cerebral vasospasm is responsible for a great number of deaths and morbidity after acute subarachnoid hemorrhage. Beyond any doubt, it is related to physiopathology of endothelial cell contraction and relaxation. It has been proved as a therapeutic agent when administrated intravenously in patients after subarachnoid hemorrhage. A critical review of literature was accomplished by the authors in order to analyse all actions of vasospasm in SAH. The intravenous administration of magnesium is imperative and should be done immediately after the onset of SAH, as reccomended in the most important guidelines for the treatment of cerebral vasospasm.