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What is Rasmussen’s Encephalitis?

One hemisphere (half) of the brain experiences persistently worsening inflammation (encephalitis) in Rasmussen's encephalitis (RE), an extremely uncommon illness. It is also known as Rasmussen syndrome. This inflammation causes progressive and irreversible brain damage as well as frequent convulsions (epilepsy). As a result, the impacted hemisphere of the brain stops functioning. As the inflammation worsens, one side of your body becomes weaker and your mental health deteriorates. The doctor who initially identified the disease in 1958, Theodore Rasmussen, is honored by the condition's name.

What is the Importance of Timely Treatment?

Early detection and treatment can prevent additional neurological damage, minimize cognitive decline, and possibly stop the disease's course. Prompt treatment of Rasmussen's encephalitis is essential for improving a patient's long-term result.

What can I expect if my son has Rasmussen’s Encephalitis?

You must watch for symptoms of Rasmussen’s Encephalitis in children. A typical early symptom is mild weakness in your child's arm or leg.

Seizures typically become more frequent. With epilepsia partialis continuous (EPC), which occurs when seizures occur every few seconds or minutes, approximately half of patients with Rasmussen's encephalitis have this condition. Additionally, the seizures are intractable, meaning that medication cannot totally stop them.

These symptoms usually appear a few months to a few years after the initial seizure:

  • Mental deterioration, including problems with memory, cognition, and thinking
  • Hemiparesis is the progressive loss of motor (movement) skills on one side of your child's body. This frequently results in hemiplegia, or paralysis of one side of your child's body
  • Progressive loss of language and speech skills (aphasia).

What are the Common Symptoms of Rasmussen’s Encephalitis?

Signs and symptoms are

  • Severe partial seizures
  • Loss of motor abilities
  • Speech loss
  • One side of the body is paralyzed
  • Learning impairments
  • Physical impairments
  • Perplexity.

Causes, Risk Factors and Complications of Rasmussen’s Encephalitis.

Causes

Although the exact etiology of Rasmussen's encephalitis is unknown, scientists have two theories:

Autoimmune disease: When your immune system targets healthy tissue for unclear reasons, you have an autoimmune disease. Rasmussen's encephalitis may be an autoimmune disease that affects one side of the brain, according to researchers.

Infection: An unidentified virus may infect your brain and cause Rasmussen's encephalitis. Nevertheless, despite thorough examinations of the afflicted brains, scientists have not been able to pinpoint a particular virus.

Risk Factors

Age a compromised immune system, viral exposure, and environmental variables are risk factors for encephalitis.

Complications

  • Seizures: Prolonged, frequent seizures that are challenging to manage
  • One side of the body may be weak or paralyzed
  • Deterioration of cognition: Language issues, intellectual difficulties, and mental decline
  • Vision loss: A partial inability to see
  • Academic decline: A steady reduction in one's capacity for academic work

Additional issues include permanent brain damage, speech and language issues, and loss of movement skills.

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Latest Research and Technologies in the Treatment of Rasmussen’s Encephalitis in India.

Rasmussen's encephalitis is currently treated in India mainly with anti-seizure drugs, immunotherapy with intravenous immunoglobulin (IVIG) or corticosteroids in the early stages, and the possibility of surgery, such as a functional hemispherectomy, for severe, refractory cases where the affected brain hemisphere is severely compromised. These cases frequently require consultation at specialized epilepsy centres, but access to more advanced treatments, such as newer immunomodulatory therapies, may differ based on availability and location.

Rasmussen’s Encephalitis Prevention Tips

You cannot prevent Rasmussen's encephalitis because it is extremely uncommon and the reason is unknown to researchers.

Treatment options for Rasmussen's Encephalitis

Immunotherapy: Frequently used drugs for immunotherapy are:
Corticosteroids: Because of its strong anti-inflammatory effects, high-dose methylprednisolone is frequently used in the early stages, but prolonged use can have serious adverse consequences.


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Intravenous immunoglobulin (IVIG): Often regarded as a cornerstone therapy, IVIG has the ability to alter the immune system and possibly lower inflammation.

Brain surgery: The best way to treat seizures in RE is with a hemispherectomy. Half of your child's brain must be surgically removed or disconnected from the remainder of their brain. The impacted hemisphere's function has already been lost in the majority of infants who have this operation. Following surgery, there is very little chance of future function loss. When the advantages of surgery exceed the risks, providers always take it into consideration.

Rasmussen's encephalitis is diagnosed by medical professionals based on your child's symptoms and certain test findings:

  • One side of your child's brain may have atrophy, or loss of brain tissue, as revealed by magnetic resonance imaging (MRI). One important indicator of RE is a certain pattern of atrophy that gets worse over months or years
  • The illness can also be diagnosed with the use of electroencephalography (EEG). Your brain's electrical activity is captured by an EEG
  • The diagnosis of RE requires a combination of symptoms and indicators as well as imaging evidence of increasing brain hemisphere atrophy.

MediRehab (chain of Rehab center - part of MediGence provides comprehensive rehabilitation services designed to support arthritis patients in <India>. These services include:

  • Nutritional Counseling: Diet plans to reduce inflammation and maintain a healthy weight.
  • Personalized Therapy Plans: Individually tailored treatments for pain management and enhanced mobility.
  • Rehabilitation post surgery: physiotherapy sessions focused on restoring joint function and strength.
  • Nutrition Guidance: Customized dietary plan for reducing inflammation and maintaining a healthy weight for overall recovery.

Medications are mainly used to control seizures. Some broad-spectrum antiseizure medications include levetiracetam, lamotrigine, zonisamide and topiramate. Narrow-spectrum antiseizure medications: These medications mainly treat focal or partial seizures. Some narrow-spectrum antiseizure medications include ethosuximide, pregabalin, gabapentin and carbamazepine.

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Hospitals for Rasmussen's Encephalitis in India

Manipal Hospital, Hebbal: Top Doctors, and Reviews
Manipal Hospital, Hebbal

Bangalore, India

Manipal Hospitals, a group of Manipal Education Medical Group, is India’s leading multi-speciality network, comprising over 650 beds. Dedicated to clinical excellence, patient-centric care and ethical practices, it provides sophisticated diagnostics, surgery and home care services to both domestic and international patients, while also improving access to affordable healthcare for underprivileged communities.

American Oncology Institute: Top Doctors, and Reviews
American Oncology Institute

Hyderabad, India

American Oncology Institute located in Hyderabad, India is accredited by AAAHC. Also listed below are some of the most prominent infrastructural details:

  • Equipped with the most advanced technology
  • TruebeamStx + Calypso combination used for precise radiation therapy
  • Backed by advanced equipment like 4D PET CT Imaging, Luminous Acupulse DUO laser, Rapid Arc, MRI, Brachytherapy, Digital Mammography 
  • Radiation oncology techniques- Intensity Modulated Radiation Therapy, Rapid Arc, Image-Guided Radiation Therapy,
  • Stereotactic Radiosurgery, Stereotactic Body Radiation Therapy
  • All types of patient accommodation available which provide a comfortable stay to the patients & relatives.
  • Fully equipped ICUs with the latest monitoring & therapeutic facilities for critically ill patients
  • In house 24/7 blood bank for medical oncology service
  • Well-designed patient rooms, therapy rooms OTs, consultation chambers, ICUs, walkways, lounges, parking
  • Digital Breast Tomosynthesis is the breast imaging digital technology with 3D imaging
  • Dedicated leukemia wing caters to the needs of the patients who are at a high risk of developing an infection
  • State-of-the art PET CT, GE Discovery IQ 3 Ring16 PET with LightBurst technology
  • Individual cabins for patients needing chemotherapy
  • Friendly facility for differently-abled
  • Exclusive outpatient consulting section
  • Airport pick-up & drop
  • Accommodation
  • Currency exchange
  • The estimated cost of treatment
  • Language interpreters
  • Payment
  • Medical opinion
  • Additional services
  • Relationship manager
  • Meals
  • 24/7 Personal nurses*
  • Visa assistance
The Madras Institute of Orthopedics and Traumatology: Top Doctors, and Reviews
The Madras Institute of Orthopedics and Traumatology

Chennai, India

MIOT started its journey with only 70 beds and focusing on Orthopedics and Trauma care. However, we grew into a multi-specialty hospital with time. MIOT is now a 1000-bedded hospital and can offer an extensive range of services across 63 specialties. The state of art laboratory of our hospital is ranked 8th internationally. We have 21 super-specialty operation theaters equipped with cutting-edge technology to help our doctors with complex procedures.

We take great care to make our patient rooms comfortable enough. The patient rooms get plenty of fresh air as well as natural light. The soothing views from the rooms do not let the patients feel cut off from the outside world. We use separate entrances for emergency patients, out-patients, in-patients, and their attendants. We put our patients’ safety first which is why we use a superior air system to ensure a near-zero infection healthy environment.

Apart from that, MIOT’s 24 hours blood bank provides all kinds of blood work related services which include blood collection to component separation. This state-of-art blood bank alone handles more than 30,000 units of blood over the course of a year. Every month around 600 blood transfusions are managed by this blood bank.

MIOT’s SIGNA Pioneer 3T MRI machine is made with noise reduction technology. This silent MRI machine can deliver superior quality neuroimages without wasting any time. The department of Radiology and Imaging Sciences can give tough competition to any international hospital with its advanced technology and accuracy.

The PET CT service at MIOT International is the first of its kind in South India enabling better and more accurate diagnosis than earlier. The superior diagnosis is also possible for the two digital cath labs at MIOT Heart Revive center.

We also have a physiotherapy team where a team of highly efficient physiotherapists deals with the mobility and functional disability issues of our patients. They listen to the patients carefully to identify the root of the pain and use therapeutic exercises to reduce their pain.

The CCU of MIOT is something to be proud of. The specially-trained staff of this unit is dedicated to ensuring top-quality medical support to serious patients. This unit along with the MIOT International Laboratory is the backbone of our facility.

Furthermore, what makes MIOT unique is our Telemedicine service. In the new normal, we are trying everything to reach our patients. Our one of its kind Telemedicine service connects our patients to our 250 full-time doctors over email, phone, chat and video consultations.

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Why Choose India for Rasmussen’s Encephalitis Treatment?

Here are some of the reasons for choosing India:

  • Due to advancements in medical facilities, such as minimally invasive surgical techniques and immunosuppression therapy.
  • World-class experts include highly experienced doctors, JCI, and NABH-accredited healthcare institutions.
  • Compared to other countries, treatment in Indian hospitals is cost-effective.
  • Indian hospitals provide international patient services, including a multilingual support system.
  • Improved treatment methods and biological therapies.

Frequently Asked Questions

Rasmussen's encephalitis has no known treatment. Rather, the aim of treatment is to control inflammation and symptoms. Treatment options could consist of: Drugs that prevent seizures: Anti-seizure drugs typically don't fully control seizures brought on by RE.

The nation's healthcare institutions offer top-notch treatment alternatives, guaranteeing successful outcomes for many patients. Anti-seizure drugs, immunotherapy with intravenous immunoglobulin (IVIG) or corticosteroids in the early stages, and surgical intervention such as a functional hemispherectomy for severe, refractory cases are the mainstays of the most recent treatment for Rasmussen's encephalitis in India.

Yes, many Indian hospitals offer the following for Rasmussen’s Encephalitis treatment:

  • Advanced diagnostic tools like MRI, CT scan, electromyography, and PET scan for accurate Rasmussen’s Encephalitis
  • Skilled neurologist and surgeons for Rasmussen’s Encephalitis
  • Advanced immunosuppression therapy
  • Comprehensive post-surgery care and rehabilitation for long-term health benefit

Always consider the following factors when selecting Indian hospitals:

  • Hospitals that are accredited (authorised by JCI and NABH).
  • Patient reviews and success rates.
  • Hospitals that provide seamless care to patients from abroad.

In general, Rasmussen’s Encephalitis treatment has much improved in India. Controlling inflammation and symptoms is the aim of treatment. Among the treatments are anti-seizure drugs and immunosuppression therapy. In some cases surgery is suggested.

Only a doctor can diagnose Rasmussen’s Encephalitis through various tests and diagnoses. Brain MRIs are now a standard procedure for diagnosing and monitoring Rasmussen's encephalitis. Most individuals often have unilateral ventricular system hypertrophy within months of the acute stage beginning.

Rasmussen's encephalitis causes chronic inflammation of the brain, which can lead to permanent brain damage, loss of motor skills, and mental impairment. With an estimated 200–500 instances worldwide, the illness is extremely uncommon and usually affects youngsters between the ages of 2 and 10.

Providing a supportive environment, managing symptoms with medication and therapies as directed by the doctor, closely monitoring the child's seizures, seeking specialized care such as physical, occupational, and speech therapy, and being ready for any necessary surgical procedures, such as a hemispherectomy, are all part of caring for a child with Rasmussen's Encephalitis. Always check with your child's medical team for the best course of action.

Author

Dr. Vishwas Kaushik
Dr. Vishwas Kaushik

MBBS, MD

7 Years of Experience

Dr. Vishwas Kaushik is a qualified medical professional holding an MBBS from the prestigious Belgorod State University, Russia, with a strong foundation in clinical medicine and healthcare practice. His comprehensive medical training has equipped him with a profound understanding of evidence-based clinical practices, patient-centered care, and the evolving landscape of modern medicine. With a keen interest in medical research and scientific communication, he consistently translates complex clinical concepts into clear, accurate, and accessible content for diverse audiences. His work reflects a deep commitment to advancing medical knowledge, delivering impactful healthcare insights, and bridging the gap between clinical expertise and accessible medical communication. View More

Reviewer

Dr. Mohit Agarwal
Dr. Mohit Agarwal

Medical Oncologist

14 Years of Experience

One of the finest Oncologist in New Delhi, India, Dr. Mohit Agarwal has worked with several world class multidisciplinary hospitals over the years. Dr. Mohit Agarwal has over 14+ years of experience in his field. The doctor treats and manages a wide range of conditions such as Stomach Cancer, Rectal Cancer, Breast Cancer, Brain Cancer View More

Last Reviewed - January 2026