“…In both animal and human studies, surgical decompression has been found to lower ICP by increasing intracranial volume [4,7,25,38,41,42,44,47,54,61,78,89]. Muench et al [81] found that the mean volume gained by surgical decompression ranged from 15.9 to 347.4 cm 3 with a median volume of 73.6 cm 3 . In subtemporal craniectomy without opening the dura, Alexander et al [4] measured a gain of 30 cm 3 in volume.…”