What is a seizure?

A seizure is a sudden burst of uncontrolled electrical activity between brain cells (also known as neurons or nerve cells) that results in temporary changes in muscle tone or movements (rigidity, jerking or flaccidity), behaviors, sensations, or states of consciousness.

Seizures are not all the same. A seizure may be caused by an acute, transient factor, such as medication. If a person experiences repeated seizures, this is called epilepsy.

The kind of appropriate treatment can only be used once the doctor gets an accurate seizure diagnosis. Focal and generalized onset seizures usually have different causes, and an accurate description of seizure types often allows the identification of the cause behind the seizures.

While treatment does depend on identifying the cause for a seizure in any particular person, unless that can be done treatment is typically going to entail medication. Other seizures may require nerve stimulation or diet therapy to reduce their severity; epilepsy surgery is a better option for those whose cause of seizure lies in a scar or lesions that affect one location in the brain.

What are the types of seizures?

There are two general types of seizures:

Generalised seizures, also referred to as generalised onset seizures, are those in which electrical activity starts at once on both sides of your brain. You can be stopped in what you're doing, and you may stare, shake one side of your body, or shake both sides. You are most likely to develop it when you are young, but it can begin at any age.

In focal seizures, also called focal onset seizures, activity starts on one side or "focus" of your brain. Symptoms may or may not affect your consciousness; in other words, they might or might not leave a memory of the seizure, and often affect only one side of your body. Seizures that start focal may either remain focal or generalize to both sides.

Types of Generalized seizure

Among the various forms of generalized seizure disorders are:

• Absence seizures: You stop your activity and stare blankly.
• Drop seizures, also called atonic seizures: You suddenly lose muscle control and fall to the ground.
• Clonic seizures: It occurs when you shake one side of your body without passing out or both sides and do so.
• Myoclonic seizure: It is a jerky or twitchy feeling in one muscle or group of related muscles.
• Secondary generalized seizures: After having a focal seizure, in which electrical activity starts in one part of your brain, you may experience secondary generalized seizures, where electrical activity spreads to both sides of your brain.
• Tonic-clonic seizures: Convulsions, loss of consciousness, and stiffened muscles are the signs of tonic-clonic seizures.
• Tonic seizures: You don't have convulsions, but your muscles tense up and you pass out.

Types of focal seizures

Among the several forms of focal seizure disorders are:

• Simple partial seizures with focal onset: You can recall and recognise a seizure when it occurs.
• Complex partial seizures: It also known as focal onset impaired awareness seizures, cause you to lose consciousness, become confused, and lose the ability to recall the seizure.

What are the symptoms of a seizure?

Depending on the type and severity of the seizure, these symptoms may be present:

• Unconsciousness.
• Involuntary movements (jerking, muscle spasms, convulsions).
• Staring

Additional symptoms may include:

• Sudden emotional changes (fear, anxiety, excitement, or disorientation).
• Teeth clenching.
• Saliva drooling.
• Irregular eye movements.
• Inability to control the bowels or bladder.
• Vocalizations (snorting or grunting).

These are temporary symptoms that last from a few seconds to a few minutes.

What are the signs of seizure?

Depending on the nature and severity of seizure, symptoms may include;

• Loss of consciousness. 
• Involuntary movement (twitching, muscle contraction, convulsions). 
• Eye Gazing.

Other signs and symptoms may include;

• Rapid mood changes (anxiety, happiness, fear, and confusion). 
• Clattering of teeth. 
• Slobbering.
• Sudden eye movements. 
• Loss of bowel and bladder control. 
• Vocalisation (snorting or groaning). 

They only last for a few seconds up to a few minutes.

Why do seizures take place?

Changes in the brain nerve cell communication cause seizures. The nerve cells in the brain produce, transmit, and receive electrical impulses. The cells are referred to as neurones. The impulses enable the cells to communicate with one another. Anything that interferes with the roads of communication may cause a seizure. Some kinds of seizures result from changes in genes.

The majority of seizures are caused by epilepsy. However, not all cases of epilepsy cause seizures. Sometimes seizures may be caused by the following:

• A high temperature: Febrile seizure is one which is caused by a fever that leads to a seizure.
• A brain infection: It may be encephalitis or meningitis
• Serious illness: This includes serious COVID-19 illness
• Lack of sleep.
• Low sodium levels in blood: If you are on medication that causes urination, this may happen.
• Some medications can beused to quit smoking or treat depression or pain.
• A recent, ongoing brain injury, such as a head injury: This may lead to a stroke or bleeding in part of the brain.
• The use of drugs that are illegally obtained: These include cocaine and amphetamines.
• Alcohol abuse: Both the abuse of alcohol and withdrawal from alcohol may induce seizures.

What are risk factors for seizures?

Seizures can come upon anyone at any age. You might be more susceptible if you:

• Have an underlying illness.
• Have a family history of seizures in your biological relatives.
• Are a minor, under the age of 18.
• Are above fifty.

What problems might develop during a seizure?

Loss of consciousness and unconsciousness are general symptoms of seizures. During these episodes, you may get injured in case you fall or stop abruptly what you were doing, like driving, working with machinery, or climbing up (tall structures). You can hit your arms or legs on hard surfaces while you are convulsing; this can lead to scratches, bruises, or broken bones.

Status epilepticus is the term used when a seizure lasts longer than five minutes or when you have multiple seizures without sufficient time to recover between them. Because status epilepticus can cause brain damage or even death, it is a medical emergency that can be fatal.

Mental health and seizures

Your mental health may be significantly affected by seizures. Anxiety and depressive symptoms are common accompaniments of seizures.

This can be due to the fact that seizures take away your focus and make you give up fun activities. It is possible to have fears or apprehensions of possibly having another seizure. Lying awake at night might be due to this fear of when the next seizure will happen. Probably, you may avoid going out in public or even from spending time with close family members due to your shame of possibly having a seizure in public.

This is a common feeling since seizures are uncontrollable. You can manage how seizures affect your emotional health with the help of a mental health expert.

How is a seizure diagnosed?

A medical professional, usually a neurologist, diagnoses a seizure after a neurological examination, testing, and a physical examination. Your provider will review your medical and family health histories and ask you more questions about your symptoms.

You may not remember what happened, so it is always helpful to have someone who witnessed the seizure present during your appointment to explain what they saw.

Which tests are used to diagnose seizures?

Tests can help determine whether you had a seizure and, if so, what may have triggered it.

Determine if there is a focus point-a specific area of the brain from which your seizures originate-that is important in diagnosing seizures. Finding a focus point may help your healthcare professional make treatment plans.

The following tests are used to diagnose seizures:

• Blood tests.
• CT scan (computed tomography).
• EEG stands for electroencephalogram.
• Genetic tests.
• MRI stands for magnetic resonance imaging.
• PET scan (positron emission tomography).
• Lumbar puncture, or spinal tap.

If doctors think you might have suffered damage or problems because of a seizure, they may also recommend testing. What tests your doctor advises and why will be discussed with you-or someone you authorize to make medical decisions for you.

How are seizures treated?

Treatment for seizures varies with their nature, severity, and cause. The following may be suggested by your doctor:

Underlying causes or conditions: your doctor will start with treating underlying conditions such as low blood sugar or a stroke that could make future seizures stop.

Anti-seizure drugs: taking medicines might help to stop seizure episodes or reduce the severity of their occurrence.

Surgery: By targeting the focal point, which is the part of the brain where seizures start, surgery can reduce the number of seizures and their severity.

Brain stimulation: A surgeon will implant a device to administer a small electrical current to your brain. The abnormal electrical activity is disrupted and attempted to be stopped by the current. There are several forms of brain stimulation, one of which is vagus nerve stimulation.

Your doctor may recommend dietary changes if certain types of treatment do not help. You may have fewer seizures when you are on a ketogenic diet, which contains little to no carbohydrates. There are studies still being done regarding dietary changes and seizure connection.

Medications for Seizures

You can treat seizures with medications through:

• Stopping a seizure.
• Preventing seizures in the future.
• Reducing the severity of seizures.
• Reducing the frequency of seizures.

Common medications for seizures include, but are not limited to:

• Gabapentin.
• carbamazepine.
• Benzodiazepines.
• Diazepam.
• Lamotrigine.
• Oxcarbazepine.
• Phenytoin.
• Acid valproic.

Once you start taking a new medication, your doctor will schedule regular follow-up appointments to monitor its effectiveness. It may take several months before you and your doctor determine the best drug and dosage for you. Even if you feel better, always take your meds as prescribed.

Can a seizure be prevented?

Seizures are not predictable, so you cannot possibly prevent them from happening; however, the best that you can do is try to avoid possible causes or triggers, such as managing blood glucose levels or protecting oneself from illness and injury.

What can I expect if I have a seizure?

The risk of having another spontaneous seizure is less than 50%. Doctors may recommend starting antiseizure medication if a second seizure occurs. The cause of the first seizure determines the risk of having another in the case of induced seizures. Your risk of having another seizure is low if it is treated (unless the circumstances that led to the first seizure recur).

Medications may suppress seizure activity or decrease their occurrence frequency. Identifying the right, though may sometimes take attempts with various drugs or pairs of drugs.

Treatment may not just be in medicine. In some cases a doctor might recommend surgery; another may be some types of diets, among many others.

Your healthcare practitioner can help you take precautions in case of frequent seizures. You can also choose to wear a medical ID bracelet or carry a medical ID card so that others will know what to do if you have a seizure.

How probable is it that you will have another seizure?

The prognosis can vary significantly because everyone's experience with seizures is different. Many factors can influence your outlook. These include:

• Is the cause known?
• Can the cause be treated or controlled?
• What type of seizure did you have?
• How long did the seizure last, and was it severe?
• This seizure, was it your first?
• Do you have seizures often as an expression of an underlying illness that you have?
• What treatments are there to help you cope with this type of seizure?

The most current information about what to expect will be provided by your doctor. If you have questions, ask.

What questions should I ask my doctor?

If you do experience a seizure, you might want to ask your physician:

• Why did I have this seizure?
• How can I avoid triggers?
• What care would you recommend?
• Do the medications have side effects?
• Will there be another seizure?
• How can I keep myself safe?

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