Date	Event	Description
5 January 2004	New search has been performed	In the previous version, trials were included if study medication was begun within three days after onset of subarachnoid haemorrhage. In this updated version we have allowed trials that started study medication within two weeks after onset. This change was made to include studies that use hypervolaemia as a treatment if secondary ischaemia develops and not only as a preventive measure. Since the last publication of the review, one new trial has been identified and found eligible, and for one other trial clinical data have become available. Therefore, we now have two trials included in the analyses. Nevertheless, the amount of data is still sparse because both trials included only small numbers of patients. One new review on hypervolaemia has been identified and is discussed in this updated version.