What is a Persistent Vegetative State?
A persistent vegetative state is a disorder of consciousness in which a person is awake but is showing no signs of awareness for longer than four weeks.
What causes a Persistent Vegetative State?
A persistent vegetative state is caused by damage to the parts of the brain that are responsible for consciousness. This may be due to:
- Traumatic brain injury. This occurs when a force to the brain causes severe trauma.
- Non-traumatic brain injury. This is usually caused by a health condition that deprives the brain of oxygen or directly attacks brain tissue.
- Progressive brain damage. This occurs over time and can be caused by conditions such as Alzheimer’s, Parkinson’s or a brain tumour.
What are the symptoms of a Persistent Vegetative State?
A person in a persistent vegetative state does not show any meaningful responses, such as responding to voices, and they also do not show any signs of experiencing emotions. However, they can still open their eyes, wake up and fall asleep, regulate their heartbeat and breathing and their basic reflexes are still intact.