BIPOLOAR DISORDER AND TREATMENT
Tuesday, October 12, 2010
INTRODUCTION TO NEUROLOGICAL DISORDER
A neurological disorder
is a disorder of the body’s nervous system. Structural, biochemical or
electrical abnormalities in the brain or spinal cord, or in the nerves leading
to or from them, can result in symptoms such as paralysis, muscle weakness,
poor coordination, and loss of sensation, seizures, confusion, pain and altered
levels of consciousness. There are many recognized neurological disorders. Some
relatively common, but many rare. They may be revealed by neurological
examination and studied and treated within the specialties of neurology and
clinical neuropsychology, Interventions include preventative measures,
lifestyle changes, physiotherapy or other therapy neuro rehabilitation, pain
management, pain management, medication, or operations performed by
neurosurgeons.
TYPES OF
EPILEPSY:-
ABSENCE EPILEPSY:-
People with absence
epilepsy have repeated absence seizures. Absence epilepsy tends to run in
families. The seizures frequently begin in childhood or adolescent. If the
seizures begin in childhood, they usually stop at puberty.
Although the seizures don’t have a lasting effect on intelligence or
other brain functions, children with absence epilepsy frequently have so many
seizures that it interferes with school and other normal activities.
TEMPORAL
LOBE EPILEPSY:-
TLE is the most frequent cause of partial seizures and aura. The
temporal loge is located close to the ear. It is the part of the brain where
smell is processed and where the choice is made to express a thought or remain
silent.
TLE often begins in childhood repeated TLE seizures can damage the
hippocampus, a part of the brain that is important for memory and learning.
Although the damage progressive very slowly. It is important to treat TLE as
early as possible
FRONTAL LOBE
EPILEPSY:-
The frontal lobe of the brain lies behind the forehead. They are the
largest of the five lobes and are thought to be the centers that control
personality and higher thought processes. Including languages and speech.
Frontal lobe epilepsy causes a cluster of short seizures that start and
stop suddenly. The symptoms depend upon the part of the fronted lobe affected.
OCCIPITAL
LOBE EPILEPSY:-
The occipital lobe lies at the back of the skull occipital lobe epilepsy
is like fronted and temporal lobe epilepsies, except that the seizures usually
begin with usual hallucinations, rapid blinding, and other symptoms related to
the eyes.
PARIETAL
LOBE EPILEPSY:-
The parietal lobe lies between the frontal and temporal lobes. Parietal
lobe epilepsy is similar to other types in part because parietal lobe seizures
tend to spread to other areas of the brain.
CAUSES OF
EPILEPSY:-
BRAIN
CHEMISTRY:-
Epilepsy may develop because of an imbalance in those chemicals in the
brain that help the nerve cells in the brain transmit electrical impulses.
These chemicals are called neuron transmitters.
Researchers think that some people who have epilepsy have too much of a
neuron transmitter that increases impulse transmission and other have too
little of neuron transmitters that reduce transmission.
Epilepsy may also cause by changes in brain cells called glia. Glias
regulate concentrations of chemicals in the brain that can change the way
neurons signal.
HEREDITARY
CAUSES
Many types of epilepsy tend to run in families, and some have been
traced to an abnormality in a specific gene. These genetic abnormalities can
caused subtle changes in the way the body processes calcium, sodium and other
body chemicals.
People who have progressive myoclonus epilepsy are missing a gene that
helps break down protein. Those with a severe form of epilepsy called lafora’s
disease are missing a gene that helps break down protein. Those with a severe
form of epilepsy called lafora’s disease are missing a gene that helps break
down carbohydrates.
Hereditary factors are not always direct cause of epilepsy but may
influence the disease indirectly. Genes can affect the way people process drugs
or can cause areas of malformed neurons in the brain.
OTHER
DISORDER
·
Brain
tumors, alcoholism, and Alzheimer’s disease can cause. Epilepsy because they
alter the normal working of the brain.
·
Stroke,
heart attacks and others conditions that affect the blood supply to the brain
(cerebrovascular diseases) can causes epilepsy by depriving the brain of
oxygen. About a third of all new cases of epilepsy that develop in older people
are caused by cerebrovascular diseases.
·
Infection
diseases such as meningitis, viral encephalitis, and AIDS can cause epilepsy.
·
Cerebral
palsy, autism and a number of other developmental and metabolic disorders can
cause epilepsy.
HEAD
INJURY:-
Head injury can cause seizures;
if the head injury is severe the seizures may not begin until years later. If
the injury is mild the risk is slight.
PARANTAL
INJURY:-
In a fetus the developing
brain is susceptible to prenatal injuries that may occur if the pregnant
mothers has an infection, doesn’t eat properly, smoke or abuses drugs or
alcohol. These conditions called cerebral palsy.
About 20% of seizures in
children are caused by cerebral palsy or other nervous system diseases.
Sometimes epilepsy is linked to areas in the brain where neurons may not have
formed properly during prenatal development.
ENVIRONMENTAL
CAUSES
Epilepsy can be caused by
·
Environmental
and occupational exposure to lead carbon monoxide, and certain chemicals
·
Use
of street drugs and alcohol
·
Lack
of sleep, stress, or hormonal changes
·
Withdrawal
from certain antidepressant and anti – anxiety drug
EPILEPSY
– SYMPTOMS:-
Seizures are the only visible
symptom of epilepsy there are different kinds of seizures and symptoms of each
type can affect people differently. Seizures typically last from a few seconds
to a few minutes. You may remain alert during the seizure or lose
consciousness. You may not remember what happened during the seizure or may not
even realize you had a seizure.
Seizures that make you fall to the
ground or make the muscles stiffen or jerk out of control are easy to
recognize. But many seizures do not involve these reactions and may be harder
to notice. Some seizures make you stare into spark for a few seconds. Others
may consist only for a few twitches a turn of head, or a strange smell or
visual disturbance that only you sense.
Epileptic seizures often happen
without warning, although some people may have an aura at the beginning of a
seizure. A seizure ends when the abnormal electrical activity in the brain
stops activity begins to retur4n to normal. Seizures may be either partial or
generalized.
TREATMENT
FOR EPILEPSY:-
Treatment for epilepsy will not
normally begin unless you have a second seizure.
This is because it is quite common
for a person to have a one – 0ff seizure and nerve have a second one.
However, occasionally someone may
have a tests carried out after one seizure such as an EGG test. Once the
doctors have carried out their tests and asked for any witness reports, they
will then decide whether they feel the person does have epilepsy and is so will
need to start treatment.
ANTI
– EPILEPTIC DRUGS (AED’S)
The majority of people with
epilepsy can be successfully treated with medicines known as anti – epileptic
drugs (AED’S) AEDs do not cure epilepsy. But they do prevent seizures from
occurring.
There are many different AEDs but
they all tend to work by either.
Altering the electric transmission in
your brain in a way that reduces the chance of a seizure, or
Altering the chemicals in your brain in
a way that reduces the chance of a seizure
SIDE
EFFECTS ARE COMMON WHEN STARTING TREATMENT WITH AEDs
·
Nausea
·
Abdominal
pain
·
Drowsiness
·
Dizziness
·
Irritability,
and
·
Mood
Changes
For some people, the side
effects will pass within a few days, whereas for others, the effects may
persist for many months.
Some side effects, which produce
symptoms that are similar to being drunk, occur when the dose of AEDs you are
taking is too high. They include.
·
Unsteadiness
·
Poor
Concentration
·
Drowsiness
·
Vomiting,
and
·
Double
vision
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