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Neuropathic Pain: Things to Know - Dr. Skaribas

Last updated: 03-19-2020

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Neuropathic Pain: Things to Know - Dr. Skaribas

When damage or dysfunction is caused to the nervous system, the nerves are unable to function properly which can cause pain. This is called neuropathic pain. The pain stems from the nerves inability to transmit sensations to the brain, resulting in a sense of numbness or lack of sensation altogether. Sometimes, a person experiences pain in the affected area. 

Pain can arise from any level of the nervous system – peripheral nerves, the spinal cord, or the brain. The wrong signals are sent from damaged nerve fibers and the nerve functions may change once damaged. Neuropathy is defined as a disturbance of function or a change in nerves. While it is not always clear to tell the source of neuropathic pain, about 30% of cases are caused by diabetes. 

There are multiple reasons why patients develop neuropathic pain. When certain neurotransmitters are released at an increased rate, combined with the inability of the nerves to regulate the signals leads to a painful sensation in the affected area. 

When the spinal cord interprets these changes in neurotransmitters and experiences a loss of normally-functioning cells, there is a perception of pain. This happens even even when there is a lack of external stimulant. The brain can lose its ability to block pain following an injury or trauma like a stroke. 

Over time, further cell damage occurs in all these areas and the sense of pain continues. 

There is a myriad of sources that can trigger neuropathic pain, including: 

Identifying neuropathic pain is difficult because few, if any, signs are commonly present. Patients may describe their symptoms as dull, sharp, hot, cold, sensitive, itchy, burning, or any other descriptor of pain. There may be pain when pressure is applied or even a light touch. Because the symptoms can vary, it is tricky for physicians to diagnose the type of pain. 

To help identify how much pain a patient is experiencing, physicians may use a visual scale or a numeric scale. TheWong-Baker FACES pain scalerating assists patients who may have a difficult time orally describing their pain. 

Experiencing chronic pain is the most common complaint in patients with neuropathic pain. Due to the intricacies of diagnosing this pain, it is possible to continue for weeks or even months before a patient seeks medical attention. Many people experience pain in their feet, legs, or upper extremities. Because the hands and feet are typically affected, symptoms are frequently described as being in a “stocking-glove distribution.” 

The goals of treatments are to ultimately treat any underlying condition or disease and provide pain relief. This will result in a higher quality of life and maintaining functionality that may have been lost due to pain. 

Pain that has not responded to the therapies mentioned can be treated with spinal cord stimulation or brain stimulation. 

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