Understanding Peripheral Neuropathy -- Diagnosis, Treatment, and Prevention
How Is Peripheral Neuropathy Diagnosed?
If your doctor suspects you may have a form of peripheral neuropathy, he or she may refer you to a neurologist, a doctor who specializes in diseases of the nerves. The neurologist (or your own doctor) will begin by taking a history of your symptoms and examining you for signs of muscle weakness, numbness, and impaired reflexes. You may need blood and urine tests to check for vitamin or metabolic deficiencies and the presence of any underlying disease or genetic defect that may be affecting nerve function.
You may also be given an electromyogram (EMG) and nerve conduction velocity (NCV) tests, which is used to assess nerve and muscle function and measure the electrical properties of the nerves. Using these tests, doctors can often pinpoint the abnormal nerves and determine which part of their structure is damaged.
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Nerve and muscle biopsies may also be performed and may provide valuable information about the type and cause of the neuropathy. A spinal tap, or lumbar puncture, is sometimes recommended to help identify infection or inflammation that might be associated with the neuropathy.
If anyone in your family has been diagnosed with peripheral neuropathy or has had similar symptoms, your doctor may want to review their medical records or examine them to look for potential hereditary links to your condition.
What Are the Treatments for Peripheral Neuropathy?
Effective prognosis and treatment of peripheral neuropathy relies heavily on the origin of the nerve damage. For example, peripheral neuropathy caused by vitamin deficiencies can often be halted -- even reversed -- with vitamin therapy and an improved diet. Likewise, nerve damage brought on by alcohol abuse can often be improved by avoiding alcohol. Peripheral neuropathy caused by toxic substances or medications can often be corrected in much the same way. When neuropathy is related to diabetes, careful monitoring of blood sugar levels may slow its progression and curb symptoms.
Early diagnosis and treatment of peripheral neuropathy is important, because the peripheral nerves have a limited capacity to regenerate, and treatment may only stop the progression -- not reverse damage. If you have become severely impaired, you may need physical therapy to help retain strength and avoid muscle cramping and spasms.
Surgical treatment may be recommended for people with nerve damage from injury or nerve compression. Mobility aids, such as a cane, walker, or wheelchair, may be helpful. For pain, your doctor may prescribe pain medication.
How Can Peripheral Neuropathy Be Prevented?
Some forms of peripheral neuropathy can be averted by maintaining sound health habits. Eating a nutritious diet, exercising regularly, and abstaining from excessive alcohol consumption can all help prevent nerve damage. Avoiding injuries and toxic chemicals and carefully managing underlying disorders, such as diabetes, can also help prevent peripheral neuropathy.
SOURCES: Bromberg M. Seminars In Neurology, June 2005. National Institute of Neurological Disorders and Stroke (NINDS). The Official Patient's Sourcebook on Peripheral Neuropathy: A Revised and Updated Directory for the Internet Age, October 1, 2002. Sghirlanzoni A. Lancet Neurology, June 2005.
Richard Senelick, MD on April 03, 2013