“…Most of patients with hemispheric infarctions had unilateral brain swelling and they have 80% mortality rate. Decompressive craniectomy has been shown to reduce this mortality to 20-35% [2,14,15]. Few recent studies on malignant ischemic stroke demonstrate that early surgery even before the pupil dilates may increase the number of patients with a favourable functional outcome [6,16,17].…”