The Uncertainity We Face With Head Injuries
Every year in America,
almost one and a half million people suffer
traumatic brain injury. This refers to an injury
to the brain usually as a result of an accident,
or sometimes an assault.
Often the injury results from a
blow to the head such as may be suffered in
an automobile accident, a fall or a gunshot
wound. The injury may also occur as a result
of lack of oxygen or as a result of lack of
blood supply to the brain for example following
a heart attack.
People with multiple injuries like
in serious auto mobile accidents often suffer
brain injury by more than one of these mechanisms.
The term head injury is preferable to the term
brain damage because the brain has tremendous
powers of recovery.
Furthermore, shortly after a head
injury, it is usually impossible. One may never
know the exact cause of the accident or injury,
and chances are the head injured person will
never remember what happened. No one can tell
when the person will wake up. The usual policy
is to wait and see.
Furthermore, head injured persons
rarely wake up all at once. Rather the process
of full recovery of consciousness is gradual
and takes hours in the mildest cases, and may
take months or even years in the worst cases.
Some people improve only to a point and never
fully regain awareness of their surroundings.
In contrast to the short time it takes to injure
the brain, recovery is measured in weeks, months
and even years.
Recovery is most rapid shortly
after the injury and slows down with the passage
of time. Many people with severe head injuries
end up with almost no noticeable problems, but
others require constant care for the rest of
their life. Most people who survive a serious
head injury eventually wake up from coma, that
is, they begin to open their eyes. In the best
cases recovery proceeds from this point to nearly
complete recovery.
In worst cases there is no recovery
beyond opening their eyes. People who wake and
sleep but have no meaningful interaction with
the world around them are said to be in persistent
vegetative state. This is probably the worst
possible outcome. In between these extremes
is a very wide range of outcomes, some fortunate,
and some tragic.
It is very important to know that
the outcome may remain unknown for many months.
It may seem cruel and uncaring when the doctor
says that only time can tell about the extent
of injury, but this is the accurate answer.
In general terms, the longer a person remains
in coma, the less likely he or she is to recover
completely.
The process of recovery almost
always takes much longer than the family and
friends expect. A few people may eventually
become essentially normal after several months
in coma, whereas others may suffer devastating
permanent injury after only a brief period of
coma.
As would be expected, people with
head injuries generally do better if just their
head is injured and they do not also have serious
injuries to other parts of their bodies.
No one can accurately predict whether
a head injured person will die. Head injuries
are often serious enough themselves to cause
death. There are two critical periods in the
immediate recovery of a head injured person.
The first is in the first day or two after the
injury when the injuries may be so overwhelming
as to cause death in the face of the most intensive
treatments.
Those who survive this period face
another critical period beginning a few days
later and continuing for two weeks or more.
This critical period results from swelling of
the injured brain. After head injuries patients
and their care takers are advised to take notice
of certain key pointers towards late manifestations
of head injuries.
These include any symptom that
is getting worse, such as headaches, nausea
or sleepiness, nausea that doesn't go away,
changes in behavior, such as irritability or
confusion, dilated pupils (pupils that are bigger
than normal) or pupils of different sizes, trouble
walking or speaking, drainage of bloody or clear
fluids from ears or nose, vomiting, seizures
or weakness or numbness in the arms or legs.
Patients are advised that if any
of these symptoms appear then they should consult
the doctor, or get someone to take them to the
nearest hospital accident and emergency department
as soon as possible.
In most patients recovery is rapid
and no long-term problems are encountered however
as there is a chance of having late problems,
patients are strongly advised to have regular
checkups with their doctors. |