brain injury

Brief overview What is coma? A prolonged deep unconsciousness and the most severe form of impaired consciousness. There are different levels of coma from mild (patient reacts to certain stimuli) to deep (no longer reacts). Forms: In addition to the classic coma, there are waking coma, minimally conscious state, artificial coma and locked-in syndrome. Causes: … Coma: Unconsciousness as a protective reaction