In the state of California, patients are said to have suffered anoxic brain injury when their brain has been deprived of oxygen for more than four minutes. If the brain has been deprived of oxygen for five minutes or longer, anoxic brain injury, also called hypoxic-anoxic injury or cerebral hypoxia, can be permanent. This injury is considered life-threatening and can have serious consequences on a survivor’s cognitive abilities.
There are multiple causes of anoxia. These include electrical shock, carbon monoxide inhalation, poisoning, suffocation, illegal drug use and compression of the trachea. There are four types of anoxia;
Anoxia can cause cognitive issues like short-term memory loss, poor performance of executive functions, anomia and visual disturbances. Physical issues caused by anoxia include ataxia, apraxia, movement disorders, weakness in all four limbs, and headaches.