Have you ever heard of a strange disease that affects only one side of the brain and gets worse over time? Maybe your little one has frequent fits, weakness on one side of the body, and difficulty speaking? It's understandable to be scared when you hear about something like that. Today we're going to talk about a rare but important condition. It's called Rasmussen's Encephalitis.
What is Rasmussen's Encephalitis?
Simply put, Rasmussen's Encephalitis is a progressive, long-term inflammation of one of the two hemispheres of our brain, that is, on one side of the brain . To be precise, the brain cells become swollen and red. This is also called Rasmussen syndrome.
When one side of the brain is inflamed in this way, it starts to cause frequent fits. In medical terms, we also call this epilepsy. This is not just a fit, it starts to damage the brain little by little, and that damage is difficult to repair. Over time, the function of one side of the body decreases in relation to the damaged side of the brain. Imagine, this has affected the right side of the brain, then the left side of the body may lose its strength, have difficulty speaking, and have memory loss.
This disease was first discovered by a doctor named Theodore Rasmussen in 1958. So, it is named Rasmussen encephalitis in his honor.
How rare is this situation?
This is actually a very, very rare disease . According to researchers, only two in every ten hundred thousand people are likely to develop this disease. That means it is very rare.
This disease mostly affects young children between the ages of 2 and 10. However, sometimes adolescents and adults can also develop this condition.
What are the symptoms of Rasmussen's Encephalitis?
The first sign of this disease is often a fit. This fit can come in many different forms.
Early symptoms
- A severe, generalized tonic-clonic seizure: In this, muscles on both sides of the body contract violently, and there may be loss of consciousness.
- Focal aware seizure: In this case, you are aware of what is happening. You may feel tingling in one hand or foot, or numbness in one area.
- Focal impaired awareness seizure: This is a seizure that starts on one side of the brain, causing a slight loss of consciousness, or even complete loss of consciousness.
The most important thing is that if you or your child has a fit like this, you should see a doctor as soon as possible . It's something that should definitely be done.
Another thing is that a slight weakness in a child's arm or leg can also be an early sign of this disease.
Symptoms that appear over time
The initial seizures gradually increase in frequency. About half of people with Rasmussen encephalitis develop a condition called `(Epilepsia Partialis Continua - EPC)`. This means that the seizures continue for a few seconds or a few minutes. These seizures are very difficult to control with ordinary medications (intractable).
The following symptoms begin to appear within a few months, or even a year or two, of the first fit:
- Gradual decline in mental abilities : This means that things like thinking, comprehension, and memory may decrease.
- Gradual loss of movement on one side of the body (hemiparesis): For example, the right arm and right leg may become numb. Over time, this can progress to complete paralysis (hemiplegia).
- Aphasia : This occurs when the disease affects the side of the brain responsible for speech (usually the left side).
- Complete loss of vision on one side (hemianopsia): It is like losing vision on only one side of the eye.
For most people, the first 8 to 12 months after the onset of Rasmussen encephalitis are the worst . After that, the disease may seem to slow down or even stop. However, the damage to the brain is permanent and cannot be reversed.
What is the reason for this?
To be honest, scientists still don't know exactly what causes Rasmussen encephalitis . But they have two main theories:
1. Autoimmune disease : This is when our immune system, the system that protects us from disease, mistakenly attacks our own good cells. So, Rasmussen encephalitis is thought to be a similar autoimmune disease that attacks only one side of the brain.
2. Infection : It is possible that an unidentified virus enters the brain and causes this condition. However, researchers have examined the brains of people who have developed the disease, but have not yet identified a specific virus.
How is this disease diagnosed? (Diagnosis)
Doctors diagnose Rasmussen encephalitis based on your child's symptoms and the results of several special tests.
- MRI scan (Magnetic Resonance Imaging - MRI): This can show if the brain tissue on one side of the child's brain has atrophied or shrunk. If one side of the brain gradually atrophies over several months or years, it is a major sign of the disease.
- EEG test (Electroencephalography - EEG): This can also help diagnose the disease. An EEG test records the electrical activity in the brain. This can help determine how the seizure is occurring and whether the brain is functioning abnormally.
So, doctors confirm Rasmussen encephalitis by combining symptoms and scan findings, such as atrophy of one side of the brain .
What are the treatments for Rasmussen's Encephalitis?
Unfortunately, there is still no cure for Rasmussen encephalitis, so the main goal of treatment is to control symptoms and reduce inflammation in the brain.
The following can be done as treatment:
Antiseizure medications
These medications may not completely stop the seizures caused by Rasmussen encephalitis. However, they can help reduce the frequency and severity of seizures .
Immunotherapy
Immunotherapy, which involves giving medications that alter the function of the immune system, can help control the attacks and reduce damage to the brain from the immune system early in the disease.
Brain surgery
The most effective way to control fits in Rasmussen encephalitis is brain surgery . This is called a hemispherectomy. This surgery involves separating the affected hemisphere of the child's brain, that is, separating that side of the brain from the other side, or removing it completely.
In most cases, children who undergo this surgery already have a significant loss of function in the affected side of the brain. Therefore, the risk of further loss of function after surgery is low. Doctors only consider surgery if the benefits far outweigh the risks .
What is the future of this disease? (Prognosis)
The prognosis for Rasmussen encephalitis can vary from person to person . For some people, the disease may stop spreading after surgery and the frequency of seizures may stabilize.
However, many people may be left with some degree of paralysis, loss of intelligence and memory, and difficulty speaking. Very rarely, the disease can spread to other parts of the brain.
Can Rasmussen's Encephalitis be prevented?
Because Rasmussen encephalitis is a very rare disease and the exact cause is still unknown, there is nothing we can do to prevent it .
Because it's a rare condition, it's difficult for scientists to study it. But the good news is that there are treatments available that can help control the seizures and other symptoms. There may even be clinical trials that your child can participate in. It's normal to feel overwhelmed when you receive a diagnosis like this. But remember, your child's medical team is here to help you and your child in every way possible .
Let us remember (Take-Home Message)
Rasmussen's Encephalitis is a very rare, but potentially serious brain disease.
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* In this case, inflammation occurs on one side of the brain, causing frequent fits, paralysis on one side of the body, and difficulty speaking.
* Young children are most affected.
* If you notice symptoms, see a doctor immediately.
* Treatment can control symptoms.
* You are not alone at a time like this, seek help from doctors and those closest to you.
I hope this information is helpful to you. If you have any questions, don't hesitate to talk to a doctor.
` Rasmussen encephalitis, brain disease, epilepsy, fit, pediatrics, brain inflammation, neurological diseases
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