Lyme disease is transmitted through an infected tick’s bite. The infection can be chronic and it usually affects the joints and causes flu-like symptoms. The bacteria can also affect the nervous system, causing a range of neurological symptoms.
This article explores neurologic Lyme disease in more detail, including its symptoms, causes, and treatment. It also discusses Lyme disease diagnosis and an outlook.
Neurological symptoms often occur early in the course of Lyme disease. They typically occur 3-5 weeks from the initial bite and after the flu-like symptoms that people commonly experience at the start of the infection.
Lyme neuroborreliosis may affect the CNS, including the brain and spinal cord. It may also affect the peripheral nervous system (PNS), including motor and sensory nerves.
- Radiculoneuritis: This is the simultaneous inflammation of the motor and sensory spinal nerve roots. It can result in muscle weakness or paralysis and sensory symptoms, including tingling, numbness, and sharp pain.
- Cranial neuritis: This occurs when the cranial nerves become inflamed. These nerves emerge from the brainstem. They are necessary for essential functions, including:
- eye movements
- facial expression
- tongue movement
- Lymphocytic/monocytic meningitis: This is a form of meningitis caused by a predominance of lymphocytes in the cerebrospinal fluid (CSF). Symptoms include headache, stiff neck, and extreme sensitivity to light.
Facial nerve palsy is also common and may affect one or both sides of the face. Meanwhile, CNS involvement is rare. However, it may include:
- difficulty concentrating
- memory disorders
- sleep disorders
- nerve damage in the arms and legs
Lyme disease is transmitted through a bite of blood-feeding hard-shelled Ixodes ticks. However, they are usually attached for
Different types of Ixodes are common in other parts of the world, and there are three types of species causing Lyme disease. Typically, the Borellia burgdorferi bacterium causes Lyme disease in the United States.
The infection travels through the bloodstream and lymphatic system. It reaches the brain, crosses the blood-brain barrier (BBB), and infiltrates the nervous system.
Most people with Lyme disease
An infectious disease specialist
- underlying health conditions
- medical history
- pregnancy status
Lyme disease can be challenging to diagnose because it can have many nonspecific symptoms that are similar to symptoms of other conditions.
More importantly, neurological Lyme disease can resemble and be mistaken for many other conditions. Therefore, it is important for a healthcare professional to make a correct diagnosis. Some of these conditions include:
- multiple sclerosis (MS)
- chronic fatigue syndrome (CFS)
- Bell’s palsy
- autoimmune diseases
- viral infections
- transverse myelitis
- Guillain-Barré syndrome (GBS)
The first test is an enzyme immunoassay or immunofluorescence assay to check for Borrelia antibodies in the blood. If the test does not detect Lyme disease, a person does not proceed to the next test.
If the first test detects antibodies, a healthcare professional then performs a Western blot test to confirm the diagnosis. Antibodies are evidence that the body has been exposed to the bacteria, and the Western blot detects parts of the bacteria itself.
Healthcare professionals may perform the same process on a CSF sample.
A person’s body
Many individuals with Lyme disease
However, late-stage Lyme neuroborreliosis and complications may occur if healthcare professionals do not detect Lyme disease early. The prevalence of late-stage symptoms varies, and there are different reasons for prolonged symptoms.
It is common for people with late-stage Lyme disease to
Residual symptoms are not uncommon in neurological Lyme disease and when treatment is delayed.
Around 10-20% of people with Lyme disease experience persistent symptoms
Neurologic Lyme disease occurs when the bacteria causing Lyme disease invade the nervous system, leading to neurological symptoms and inflammatory conditions. These vary widely from tingling and numbness to neuritis and meningitis.
It typically occurs in individuals whose Lyme disease is not treated promptly with antibiotics.
Early recognition and prompt treatment may prevent the infection from progressing to more severe stages. However, this may be challenging due to the difficulty of diagnosing Lyme disease accurately.
A person should carefully monitor suspected tick bites and consult a healthcare professional if they think they are at risk of Lyme disease. A healthcare professional can conduct tests to help diagnose the condition.