Can encephalitis recur?

Written by Tang Li Li
Neurology
Updated on October 27, 2024
00:00
00:00

Encephalitis comes in various types, some of which are prone to recurrence, while others are monophasic and do not recur. The most common type is viral encephalitis, particularly infections caused by the herpes simplex virus. Although recovery from viral encephalitis after antiviral treatment is possible, it may leave some sequelae, but generally does not recur. Tuberculous meningoencephalitis, however, has a higher rate of recurrence, often related to the resistance of tuberculosis bacteria and inadequate anti-tuberculosis treatment. Patients need repeated lumbar puncture tests to confirm that the cerebrospinal fluid has returned to normal levels and require long-term use of anti-tuberculosis medications. Bacterial meningitis generally does not recur. Additionally, there are some autoimmune types of encephalitis, such as autoimmune encephalitis, multiple sclerosis, and neuromyelitis optica, where recurrence is possible when involving the brain.

Other Voices

doctor image
home-news-image
Written by Zhang Hui
Neurology
1min 13sec home-news-image

Pediatric Encephalitis Examination Items

Encephalitis in children is primarily due to a lowered immune resistance, which leads to infection by certain viruses. These viruses invade the nervous system, causing damage to neurons, resulting in symptoms such as fever, headache, nausea, and vomiting. Generally, the main tests for pediatric encephalitis include hematological tests related to bleeding, primarily involving routine blood tests, C-reactive protein, and erythrocyte sedimentation rate. These indices can reflect the inflammatory conditions inside the patient's body, helping to distinguish between viral and bacterial infections. Another very important auxiliary examination is the electroencephalogram (EEG), where pediatric encephalitis can show mild to moderate abnormalities, which is helpful for accurate diagnosis. The third examination involves performing a lumbar puncture to test the cerebrospinal fluid (CSF) for the levels of white cells, glucose, and chloride, which are crucial for diagnosing encephalitis and differentiating it from other types of encephalitis.

doctor image
home-news-image
Written by Zhang Hui
Neurology
54sec home-news-image

Encephalitis belongs to which department?

Encephalitis is primarily a neurological disorder and is an infectious disease of the central nervous system, mainly diagnosed and treated in neurology. There are many causes of encephalitis, with viral encephalitis being the most common. For example, herpes simplex encephalitis is a typical type seen clinically. Patients may experience fever, even with very high temperatures exceeding 40°C, headaches, nausea, and vomiting. If the condition worsens, seizures, coma, and cognitive impairment may occur. These clinical manifestations require further investigations like electroencephalography, cranial MRI, and lumbar puncture. Additionally, there is a specific type of epidemic, known as Japanese encephalitis, which falls under the category of infectious diseases due to its contagious nature.

doctor image
home-news-image
Written by Tang Li Li
Neurology
1min 5sec home-news-image

Can encephalitis recur?

Encephalitis comes in various types, some of which are prone to recurrence, while others are monophasic and do not recur. The most common type is viral encephalitis, particularly infections caused by the herpes simplex virus. Although recovery from viral encephalitis after antiviral treatment is possible, it may leave some sequelae, but generally does not recur. Tuberculous meningoencephalitis, however, has a higher rate of recurrence, often related to the resistance of tuberculosis bacteria and inadequate anti-tuberculosis treatment. Patients need repeated lumbar puncture tests to confirm that the cerebrospinal fluid has returned to normal levels and require long-term use of anti-tuberculosis medications. Bacterial meningitis generally does not recur. Additionally, there are some autoimmune types of encephalitis, such as autoimmune encephalitis, multiple sclerosis, and neuromyelitis optica, where recurrence is possible when involving the brain.

doctor image
home-news-image
Written by Zhang Hui
Neurology
1min 11sec home-news-image

What are the symptoms of encephalitis?

The clinical manifestations of encephalitis are complex and varied, primarily caused by infections from pathogens such as viruses and bacteria. There are numerous clinical symptoms, with fever being quite common; patients generally exhibit significant fevers, which can reach up to 38 degrees Celsius or even as high as 40 degrees Celsius. Headache is also a very common clinical manifestation of encephalitis, with some patients experiencing severe headaches accompanied by pronounced nausea and vomiting. Additionally, some patients may exhibit psychiatric symptoms, which mainly include incoherent speech, hallucinations, and failing to recognize family members. Some patients may experience cognitive impairments, such as diminished memory, and significant deficits in computational and judgment abilities. In severe cases, some patients may have epileptic seizures, characterized by convulsions of the limbs. Overall, the manifestations of encephalitis are diverse and can range from simple fever and headache to severe conditions such as psychiatric symptoms, cognitive impairments, and epilepsy.

doctor image
home-news-image
Written by Zhang Hui
Neurology
1min 5sec home-news-image

Can encephalitis be cured?

The viruses that cause encephalitis are relatively common. Whether they can be cured depends mainly on the type of virus causing the encephalitis, the severity of the condition, and whether the treatment is timely. Generally, most cases of encephalitis, such as those caused by enterovirus infections, tend to self-heal to a certain extent. The focus should be on care to prevent complications, electrolyte disorders, overheating, and to provide appropriate antiviral treatment. Most patients can be cured. However, there are also some more dangerous types of encephalitis, such as encephalitis caused by the type B encephalitis virus, which can rapidly lead to disturbances in consciousness, seizures, and even respiratory involvement, resulting in respiratory failure. This type of encephalitis is more severe and can leave significant sequelae even if successfully treated. For herpes simplex virus encephalitis, as long as the initial symptoms are not particularly severe and antiviral medications are used in a timely manner, the prognosis is still good.