What is central nervous system (CNS) toxoplasmosis?

Toxoplasmosis is an infection with the parasite Toxoplasma gondii, abbreviated as T. gondii. The parasite reproduces in the digestive tracts of cats. Human beings become infected through eating undercooked meat or direct or indirect contact with cat waste (faeces).

Generally, people show no signs of this disease when it has infected them, but when a person contracts this parasite the immune system creates some cysts against this parasite which contains the live forms of parasite that can continue lying dormant at certain times to be activated leading to illness.

Who is susceptible to CNS toxoplasmosis?

Although anyone can get infected with T. gondii, most people will not have any symptoms. Typically, the parasite is cleared by your body without you ever knowing it. Pregnant women and people with weakened immune systems, such as those with HIV or cancer, are especially susceptible to toxoplasmosis.

Although cats are essential for the reproduction of T. gondii, having a cat does not seem to significantly increase your chances of getting infected.

What are the symptoms of human CNS toxoplasmosis?

The symptoms of CNS toxoplasmosis depend on the location of the activity of the parasite. This usually varies depending on whether the infection is fresh (acute), reactivated, or congenital (existing from birth).

Symptoms of ocular toxoplasmosis, or toxoplasmosis of the eye

Ocular toxoplasmosis is the infection caused by T. gondii in one or both eyes. Teenagers and young adults born infected with T. gondii are at higher risk of having it. Ocular toxoplasmosis rarely develops during the first T. gondii infection. Symptoms of ocular toxoplasmosis include;

• Eye pain.
• Blindness or blurred vision.

Symptoms of acute toxoplasmosis

Your body's response to the first T. gondii infection is referred to as acute toxoplasmosis. Although most people don't have any symptoms, you may experience flu-like symptoms, including:

• Fever
• Fatigue
• Muscle aches
• Enlarged, painless lymph nodes in your armpits or neck
• Sore throat
• Liver and spleen enlargement (hepatosplenomegaly)
• Toxoplasmosis of the eyes (rare).

Reactivated symptoms of toxoplasmosis

You may have had a previous T. gondii infection and your immune system is damaged and can cause this to reactivate if your body is not able to fight off infections so easily. This includes patients with cancer or AIDS and those being treated with immunosuppressive drugs. The symptoms of a reactivated toxoplasmosis typically affect the CNS, or brain and spine. CNS symptoms may involve:

• Headaches.
• Confusion.
• Seizures.
• Fever.
• Face paralysis.
• Changes in vision
• Numbness
• Loss or weakness of motor skills
• Toxoplasma encephalitis
• Coma

Presentations for congenital toxoplasmosis

The foetus acquires congenital (present at birth) toxoplasmosis from the pregnant woman. Some babies are at a considerable risk of acquiring symptoms later on, even though they would not have any signs at birth. Among them may be:

• Yellow eyes and skin (jaundice).
• Rash.
• Enlargement of the liver and spleen (hepatosplenomegaly).
• Loss of vision, eye pain, or light sensitivity (retinochoroiditis).
• Calcium deposits in their brains.
• Fluid in the brain (hydrocephalus).
• Head size reduction (microcephaly).
• Seizures.
• Delays in the development of motor skills.
• Differences or delays in learning.
• Toxoplasmosis of the eyes.

What causes CNS toxoplasmosis?

The parasite that causes CNS toxoplasmosis is T. gondii. Acquiring the disease occurs if one consumes or ingests a contaminated substance inadvertently.

You could exhibit toxoplasmosis symptoms after the first infection, or it might happen later when the parasite conceals itself in your body. Most individuals develop flu-like symptoms the moment the parasite invades their body. Nonetheless, your body is able to most of the times eradicate the first infection without producing symptoms.

1. gondii forms small pouches, known as cysts, in your body while your immune system is fighting it off. It can remain latent in these cysts for many years. Studies have shown that the cysts may rupture from time to time while your body is fighting off the infection. Like the original illness, there are usually no symptoms.

However, these ruptured cysts may lead to a further attack of toxoplasmosis if your immune system is weakened.

How is a diagnosis of toxoplasmosis made?

Your doctor will examine you physically and enquire about your symptoms in order to diagnose toxoplasmosis. A lumbar puncture, biopsies, imaging (CT or MRI), blood tests, or, if you are pregnant, amniocentesis or ultrasound, may be ordered.

How is a diagnosis of toxoplasmosis made?

Your doctor will examine you physically and ask you questions about your symptoms to diagnose toxoplasmosis. A lumbar puncture, biopsies, imaging (CT or MRI), blood tests, or, if you are pregnant, amniocentesis or ultrasound, may be ordered.

What tests will be done to diagnose toxoplasmosis?

Your doctor may request some or all of the following tests to diagnose toxoplasmosis:

• Blood tests: Toxoplasmosis is usually diagnosed through blood tests. Your healthcare provider will draw blood from your vein using a needle and send the sample to a laboratory to check for T. gondii antibodies. They may also look for parasite components (DNA).
• Biopsy: In some instances, your doctor may take a small tissue sample and send it to a laboratory to check for T. gondii.
• Imaging test: Your physician will refer you for an MRI or CT scan if they suspect you have developed toxoplasmosis in your brain. For this, you lie inside an imaging device, which captures the images of your brain. Then, your doctor looks at the images to find if there are changes that could suggest toxoplasmosis.
• Lumbar puncture: If your doctor suspects that you have toxoplasmosis in your brain or spinal cord, they will do a lumbar puncture. In this procedure, your healthcare professional uses a needle to extract the cerebrospinal fluid from your lower back. It will be sent to a lab to check for T. gondii.
• Amniocentesis: Your doctor might recommend an amniocentesis if you have been diagnosed with toxoplasmosis when pregnant. Using a small needle, your health care provider withdraws cells from the fluid that surrounds the foetus. It will be sent to a lab for testing to determine if T. gondii is present.
• Ultrasound: The doctor may instruct you to do an ultrasound scan if you tested positive for toxoplasmosis during your pregnancy. An ultrasound takes pictures of the foetus by passing a handheld instrument over your abdomen. This alone, however, can't diagnose toxoplasmosis; it, however, helps detect changes within the developing baby's brain which could indicate the infection.

How is toxoplasmosis infections treated?

Both antibiotics and antiparasitic medications are used in combination to treat toxoplasmosis. These prevent the growth and reproduction of T. gondii within your body.

When folinic acid is administered during the treatment of toxoplasmosis, it reduces the side effects of anti-parasitic drugs.

Those without the symptoms and without a weak immune system are not treated for toxoplasmosis, normally. Toxoplasmosis can only be treated when the parasites are active. The cysts that the parasites leave in your body cannot be removed by it.

Which drugs are prescribed to treat toxoplasmosis?

Those drugs are commonly prescribed for the treatment of toxoplasmosis, usually by these drugs:

• Pyrimethamine.
• Sulfadiazine.
• Atovaquone.
• Before 18 weeks of pregnancy, take Spiramycin.
• Sulfamethoxazole-trimetoprim.
• Clindamycin.
• Leucovorin.

How soon will I feel better after treatment?

You may begin to feel well within days, but most courses of toxoplasmosis therapy are two to six weeks long. Brain damage caused by the parasite may not fully recover in three weeks to six months.

You may need to continue therapy for a long time to ensure that the active parasites have been eliminated, even if you feel better. You will most likely need to take medicine for the remainder of your pregnancy if you have been diagnosed with toxoplasmosis. Congenital toxoplasmosis can be treated for up to a year. Individuals with compromised immune systems may get treatment indefinitely.

How does a patient suffering from toxoplasmosis take care of himself/herself?

In case you contract the disease while pregnant, strictly follow the prescriptions given by your doctor to ensure minimal transmission of the toxoplasmosis disease to the fetus.

If you have been infected with the disease and you also have a weak immune system, you and your doctor can combine a plan of how to handle toxoplasmosis infection and any other condition you might be suffering from.

What is the prognosis for toxoplasmosis?

• The two important things you may do to contribute to the avoidance of toxoplasmosis are to prepare foods safely and always wash your hands.
• Before meat is eaten it should be thoroughly frozen and adequately cooked.
• The fruits and vegetables should be skinned or effectively washed before their consumption.
• Dispose of soiled cutting boards, counters, cutlery and dishes with soap and water immediately after use
• Avoid unpasteurised milk
• Avoid uncooked or half-cooked mussels, clams, oysters
• Unpasteurised water should never be consumed.
• Put on gloves when gardening or handling soil or sand. Then wash hands with soap and water.
• Keep sandboxes outside covered.
• Don't feed raw or undercooked meats to cats.
• Change kitty litter daily. Put on gloves and then wash hands with soap and water.
• Keep cats indoors.

If your immune system is weakened or you are pregnant:

• Try to avoid changing cat litter by yourself.
• Put on disposable gloves and wash your hands well after changing kitty litter if you have to.
• Avoid taking in a stray cat or adopting a new one.

How does the prognosis for toxoplasmosis look?

For toxoplasmosis, the prognosis varies. Severe toxoplasmosis consequences are uncommon in people with robust immune systems.

With timely treatment, about 70% of children with congenital toxoplasmosis will meet projected developmental milestones.

This is the location where toxoplasmosis is most commonly found in immunocompromised individuals. More than 70 % of individuals can be treated and survive. Brain toxoplasmosis is fatal if left untreated.

How is a patient with toxoplasmosis supposed to care for himself?

Monitor your symptoms when you are diagnosed with toxoplasmosis. Call your doctor if your condition worsens or fails to improve, regardless of whether you've been initiated on treatment.

You should work closely with your child's paediatrician to ensure that they receive the right therapy if they were diagnosed with toxoplasmosis at birth. Be sure to follow up according to the plan suggested by their physician, even after therapy is completed. Recognize the telltale signals of reactivation.

What time should I visit my doctor?

Talk to your doctor about which actions you might take to prevent getting toxoplasmosis for yourself or your unborn baby if you are pregnant or planning to become pregnant, or if your immune system is weakened.

Contact your medical provider immediately if you have signs and symptoms of toxoplasmosis when your immune system is weakened.

What questions should I ask my doctor?

• What precautions do I need to take to prevent toxoplasmosis?
• How do I prevent toxoplasmosis from spreading during pregnancy?

Why Tender Palm Super-Speciality Hospital for central nervous system (CNS) toxoplasmosis?

Tender Palm Hospital, owned by doctors, is renowned for attracting the most experienced professional in the country, with the finest neurologist and neurosurgeons specialized in central nervous system (CNS) toxoplasmosis. Tender Palm stands out as the premier Neurology hospital in Lucknow, India. Boasting cutting-edge infrastructure and advanced technology, Tender Palm ensures top-notch medical care for its patients.

To seek an expert consultation for any Neurology condition

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