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A vegetative state (VS) or post-coma unresponsiveness (PCU) [1] is a disorder of consciousness in which patients with severe brain damage are in a state of partial arousal rather than true awareness. After four weeks in a vegetative state, the patient is classified as being in a persistent vegetative state (PVS).
Some define disorders of consciousness as any change from complete self-awareness to inhibited or absent self-awareness and arousal. This category generally includes minimally conscious state and persistent vegetative state, but sometimes also includes the less severe locked-in syndrome and more severe but rare chronic coma.
Persistent vegetative state (vegetative coma), deep coma without detectable awareness. Damage to the cortex, with an intact brainstem. Damage to the cortex, with an intact brainstem. Process Oriented Coma Work , for an approach to working with residual consciousness in comatose patients.
Vegetative symptoms are disturbances of a person's functions necessary to maintain life (vegetative functions). These disturbances are most commonly seen in mood disorders , and are part of the diagnostic criteria for depression , but also appear in other conditions.
The vegetative state is considered permanent if it persists for 12 months after TBI or 3 months after causes other than trauma. [ 6 ] A minimally conscious state is a condition in which patients have a reduced level of arousal and may appear, on the surface, to be in a persistent vegetative state but are capable of demonstrating the ability to ...
Here, "state" refers to different "amounts" of external/physical consciousness, from a total absence in coma, persistent vegetative state and general anesthesia, to a fluctuating and limited form of conscious sensation in a minimally conscious state such as sleep walking or during a complex partial epileptic seizure. [11]
A woman said to have been in a vegetative state for at least a decade reportedly gave birth recently, triggering a police investigation.
The Glasgow Outcome Scale (GOS) is an ordinal scale used to assess functional outcomes of patients following brain injury. It considers several factors, including a patient's level of consciousness, ability to carry out activities of daily living (ADLs), and ability to return to work or school.