craniectomy decompressive hemicraniectomy decompressive crainectomy decompressive hemicraniectomy decompressive hemicraniectomy craniectomy decompressive craniectomy decompressive hemicraniectomy decompressive hemicraniectomy decompressive hemicraniectomy craniectomy decompressive hemicraniectomy craniectomy decompressive craniectomy.