Stroke is typically categorized as a neurological deficit because of an acute focal injury
to the central nervous system (CNS) by a vascular cause.
The whole brain was insulted, as opposed to a focal injury
to the head.
In the case of compartment injury, there are tissue pressure gradients from the centre to the periphery of focal injury
To some extent, these readings can be extrapolated when being measured in relatively uninjured brain, but if there is significant focal injury
the decision has to be made whether one should measure Pbt[O.
3% to 2%) includes all major and moderate focal injury
(including coma and shock) due to major cerebral infarction.
An expanding, space-occupying lesion (eg, epidural hematoma) from a focal injury
may eventually result in unconsciousness, following a lucid interval, because of increasing intracranial pressure.
A focal injury
(an injury to a small part of the cerebellum) may affect only arm movements, balance, gait, or eye movements.
However, damage at a slightly later stage can mimic the action of a focus; thus, a focal injury can increase the size of the small forewing eyespot, and an injury elsewhere can provoke formation of an ectopic eyespot.
A difference in focal strength between the selected lines would similarly explain their difference in response to focal injury at 12-18 h.
Civilian firearm has a more focal injury
distribution than military weapons.