Understanding Meningitis in Children: Causes, Symptoms, and Treatment

Introduction

Meningitis is the inflammation of the meninges. Meninges are the outer coverings of the brain and the spinal cord. The causative agents of meningitis are bacteria or viruses and sometimes fungi or parasites. Noninfectious types of meningitis can also be caused by cancers, lupus erythematosus, surgery, certain types of drugs, head injury, and brain injury. Meningitis is caused when bacteria and viruses enter the CSF (cerebrospinal fluid). CSF protects the brain from shock or any other injuries. It provides a cushioning effect to the brain and the spinal cord. The symptoms of meningitis include fever, headache, and stiffness. Meningitis can be cured independently or may require urgent treatment. It could be a life-threatening condition in some cases.

What Causes Meningitis In a Child?

Febrile seizures are the most common type seen in two to five percent of children up to five years of age. The seizures may be the only presentation of bacterial meningitis in febrile children. Meningitis is often caused by a bacterial or viral infection that enters the CSF. However, the exact cause cannot be determined in some children. Still, it is usually seen in children with weak immune systems, recurrent sinus infections, serious head injuries, skull fractures, brain surgery, and cochlear implants.

The most common causes of meningitis are:

1. Bacterial Infections: The most common bacteria that cause meningitis is group B streptococcus, E.coli, haemophilus influenza type B, and streptococcus pneumoniae. Syphilis, tuberculosis, and Lyme disease may also be the reasons that cause meningitis. The agents that cause meningitis usually affect the child's respiratory tract. A child may sometimes show no symptoms but still carry the agent in the nose and the throat.

The infection usually spreads by close contact with the infected person, by touching the infected objects such as doors, tables, toys, etc., and then touching other body parts like the eyes, or mouth, through droplets of sneezing, coughing, or kissing.

An infection’s occurrence is primarily seen in the respiratory tract, first causing a cold, throat, sinus, or ear infection. It can then go to the bloodstream, and then to the brain and spinal cord.

1. Viral Infections: Viruses that cause viral infections include poliovirus, the mumps virus (paramyxovirus), the flu virus, and the West and Nile viruses.

2. Fungal Infections: It is rarely caused due to the inhalation of fungal spores from the environment. People with certain medical conditions like diabetes, HIV, or cancer are at a higher risk of fungal meningitis.

3. Other Causes: Parasitic meningitis can also affect the brain and the spinal cord in some ways. Sometimes, the non-infectious type of meningitis can also be caused due to cancer or certain drugs.

What Are the Symptoms of Meningitis in Newborns?

The typical symptoms of meningitis in newborns include the following:

• Extremely sleepy or irritable.

• High fever.

• Constant crying.

• Hard to comfort.

• Trouble waking up from sleep.

• Not waking to eat.

• Inactive and sleepy.

• Poor feeding.

• Vomiting.

• A bulge in the soft spot on top of the baby's head.

• Body and neck stiffness.

Which Children Are at Risk for Meningitis?

Children who are more susceptible to meningitis include:

Young children and infants are especially susceptible to illnesses because of their immature immune systems.

1. Children who have not been vaccinated against bacteria such as Neisseria meningitidis, Streptococcus pneumoniae, or Haemophilus influenzae type b (Hib) are considered unvaccinated.

2. Children in Group Environments: Camps, schools, or daycare centers where illnesses are likely to spread.

3. Immune-deficient individuals: Diseases such as HIV, cancer, or immunosuppressive medication use.

4. Children who have had surgery or head trauma: increased risk in the event that the brain's defenses are breached.

5. Close contact with a person who has been diagnosed with meningitis exposes you to cases of the disease.

6. Some medical problems, such as splenectomy (removal of the spleen) or long-term illnesses, impair immunity.

The risk can be considerably decreased by taking preventative steps like immunization and early infection treatment.

How Is Meningitis Diagnosed in a Child?

A combination of diagnostic testing and clinical evaluation is used to diagnose meningitis in children:

• Clinical Signs: Symptoms that arouse suspicion include fever, a strong headache, stiff neck, irritability, light sensitivity, vomiting, and tiredness. Babies may exhibit odd crying, difficulty feeding, or a protruding fontanel as signs.

• Spinal Tap, Often Known as Lumbar Puncture: In order to look for indications of infection, such as increased white blood cell counts, bacteria, or viruses, a sample of cerebrospinal fluid (CSF) is taken.

• Blood Tests: Blood cultures and inflammatory markers like procalcitonin and CRP can be used to identify infection and guide treatment.

In order to avoid problems, prompt diagnosis and treatment are essential. Always get medical help right away if you think you may have meningitis.

What Are the Complications of Meningitis in Children?

The following are some potential side effects of childhood meningitis:

1. Neurological Disorders: They include developmental delays, hearing loss, visual impairments, and seizures.

2. Brain Damage: Inflammation-induced long-term cognitive or motor deficits.

3. Hydrocephalus: A buildup of fluid in the brain that necessitates surgery.

4. Septicemia: An infection that enters the bloodstream and may cause organ failure.

5. Limb Damage: Severe sepsis may cause tissue death, necessitating amputation in certain cases.

6. Learning Disabilities: These include issues with focus, memory, or academic achievement.

7. Behavioral Changes: Following recovery, irritability, anxiety, or mood swings may occur.

8. Chronic Headaches: Ongoing headaches brought on by lingering inflammation.

9. Early Treatment: This is essential In order to lower the likelihood of severe problems.

How Is Meningitis Treated In A Child?

Meningitis is treated as per the underlying cause, whether it is caused by bacteria, viruses, fungi, etc. The treatment protocols also depend upon the age, symptoms, general condition of the child, and severity of the disease. As per the cause, the treatment is as follows:

• Bacterial Meningitis- It is started as soon as possible. Intravenous antibiotics are started to kill the bacteria. Corticosteroids are also suggested depending on the age of the child. Fluids are given to prevent dehydration. Steroids help in decreasing the inflammation of the meninges.

• Viral Meningitis- Usually, it gets normal on its own. There are no precise medicines to treat viral meningitis, but treatment can be provided to ease symptoms. Only the herpes simplex virus can be treated with IV antiviral therapy. Babies with weak immune systems may need to remain in the hospital for some time.

• Fungal Meningitis- It is treated by giving IV anti-fungal therapy.

• Tuberculous (TB) Meningitis- In this type of meningitis, medication can be given over 1 year. Other than this, bed rest is also suggested in some cases.

How to Prevent Meningitis?

Prevention of such diseases can be done by taking the vaccines on time. These vaccines are:

• Pneumococcal Vaccine- This is very effective in preventing meningitis caused by pneumococcal bacteria, starting at two months of age, followed by other doses at four, six, 12, and 15 months.

• Meningococcal Vaccine- It is given at 11 to 12 months of age, followed by a booster dose at 16 months.

• H-influenza Type B Vaccine- It is a 3 to 4-part series, starting at two months of age.

Conclusion:

The frequency of bacterial meningitis with febrile seizures is not too high. It is most commonly seen in children below 18 months of age. Bacterial meningitis may show the first attack of febrile seizures and loss of consciousness. It could be prevented with proper vaccination. The treatment protocols differ with the causative agent and the child's age.