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What is Diabetic Peripheral Neuropathy?
Diabetic neuropathy is nerve damage caused by diabetes. When it affects the arms, hands, legs and feet it is known as diabetic peripheral neuropathy. Diabetic peripheral neuropathy is different from peripheral arterial disease (poor circulation), which affects the blood vessels rather than the nerves.
Three different groups of nerves can be affected by diabetic neuropathy:
Diabetic peripheral neuropathy doesn’t emerge overnight. Instead, it usually develops slowly and worsens over time. Some patients have this condition long before they are diagnosed with diabetes. Having diabetes for several years may increase the likelihood of having diabetic neuropathy.
The loss of sensation and other problems associated with nerve damage make a patient prone to developing skin ulcers (open sores) that can become infected and may not heal. This serious complication of diabetes can lead to loss of a foot, a leg, or even a life.
The nerve damage that characterizes diabetic peripheral neuropathy is more common in patients with poorly managed diabetes. However, even diabetic patients who have excellent blood sugar (glucose) control can develop diabetic neuropathy. There are several theories as to why this occurs, including the possibilities that high blood glucose or constricted blood vessels produce damage to the nerves.
As diabetic peripheral neuropathy progresses, various nerves are affected. These damaged nerves can cause problems that encourage development of ulcers. For example:
Depending on the type(s) of nerves involved, one or more symptoms may be present in diabetic peripheral neuropathy.
For sensory neuropathy:
For motor neuropathy:
For autonomic neuropathy:
To diagnose diabetic peripheral neuropathy, the foot and ankle surgeon will obtain the patient’s history of symptoms and will perform simple in-office tests on the feet and legs. This evaluation may include assessment of the patient’s reflexes, ability to feel light touch, and ability to feel vibration. In some cases, additional neurologic tests may be ordered.
First and foremost, treatment of diabetic peripheral neuropathy centers on control of the patient’s blood sugar level. In addition, various options are used to treat the painful symptoms.
Medications are available to help relieve specific symptoms, such as tingling or burning. Sometimes a combination of different medications is used.
In some cases, the patient may also undergo physical therapy to help reduce balance problems or other symptoms.
The patient plays a vital role in minimizing the risk of developing diabetic peripheral neuropathy and in preventing its possible consequences. Some important preventive measures include: