This is the protocol for a review and there is no abstract. The objectives are as follows:
To determine whether corticosteroid therapy reduces the proportion of patients who die or have a poor outcome at one and six months after the onset of SAH or PICH.
To determine whether corticosteroid therapy reduces the frequency of DCI in patients with SAH.
To determine the frequency of adverse effects of corticosteroid therapy in patients with SAH and PICH within six months of the onset of the event.