What Is Chronic Inflammatory Demyelinating Polyradiculoneuropathy?
Chronic inflammatory demyelinating polyradiculoneuropathy, often called CIDP, is a rare disorder that affects the peripheral nerves. In this condition, the immune system mistakenly attacks the protective covering around nerves called myelin.
When myelin becomes damaged, nerves cannot send signals normally. This may lead to weakness, numbness, and trouble with movement or balance over time.
The exact cause of CIDP is not fully understood. Experts believe it happens when the immune system attacks healthy nerve tissue by mistake. The condition is more commonly diagnosed in middle-aged and older adults, and men are affected more often than women.
Symptoms
CIDP symptoms usually develop gradually and may continue to worsen if left untreated. Some people experience steady symptoms, while others have periods of improvement followed by flare-ups.
Common symptoms include:
- Weakness in the arms or legs
- Tingling or numbness
- Loss of reflexes
- Difficulty walking
- Poor balance or coordination
- Fatigue related to muscle weakness
How Is It Diagnosed?
Diagnosing CIDP can take time because its symptoms may resemble other nerve disorders. Healthcare providers begin with a neurological exam and a review of symptoms and medical history.
Tests often include nerve conduction studies and electromyography (EMG) to evaluate how the nerves and muscles are working. Blood tests, spinal fluid testing, MRI imaging, or nerve biopsy may also be used to rule out other conditions and confirm the diagnosis.
How Is It Treated?
Treatment for CIDP focuses on reducing immune system activity and protecting nerve function. Early treatment may help slow nerve damage and improve strength and mobility.
Common treatments include:
- Corticosteroids
- Intravenous immunoglobulin (IVIG)
- Plasma exchange therapy
- Immune-suppressing medicines
Physical therapy and occupational therapy can also help improve balance, coordination, and daily function. Because CIDP is a long-term condition, many people benefit from ongoing follow-up care and rehabilitation.
With treatment, many people are able to manage symptoms and maintain independence. Recovery can vary from person to person, and some individuals may experience recurring symptoms over time.
