Closed-Head Injuries PDF

Closed-head injuries Contusions -​ are closed-head injuries that involve damage to the cerebral circulatory system. These are typically caused by a direct blow to the head. -​ Such damage produces internal hemorrhaging, which results in a hematoma. A hematoma is a localized collectio...

Closed-head injuries Contusions -​ are closed-head injuries that involve damage to the cerebral circulatory system. These are typically caused by a direct blow to the head. -​ Such damage produces internal hemorrhaging, which results in a hematoma. A hematoma is a localized collection of clotted blood in an organ or tissue—in other words, a bruise ⇷⧫ Concussion -​ diagnosed when there is a disturbance of consciousness following a blow to the head (falls, sports injuries, motor vehicle accidents, or physical assaults.) and there is no evidence of a contusion or other structural damage. ⇷⧫ Chronic traumatic encephalopathy -​ accumulation of the effects of a concussion or years of repeated concussions. It is the cerebral scarring observed in boxers, rugby players, football players, and other individuals who have experienced repeated concussive, or even sub-concussive, blows to the head. -​ It involves the build-up of abnormal tau protein deposits in the brain over time.