[Several pathophysiologic grounds for radical removal of contusion foci from the cerebral hemispheres].

Local circulation and PO2 of the cerebral tissue were studied in 26 patients during the acute period of a severe craniocerebral trauma. It was demonstrated that pronounced changes in the microcirculation developed in the area of the concussion focus in the cerebral hemispheres. Three zones of disorders in the local circulation were distinguished, and it was shown that in case of an unremoved concussion focus the extending of its necrosis zone took place. The most effective surgical management of patients with severe craniocerebral traumas attended by concussion foci is its radical removal.