Harvard Rehab Group
 

Therapy Programs: Peripheral Neuropathy
Peripheral neuropathy (PN) is a disorder affecting the peripheral nervous system (PNS). The PNS consists of nerves that branch out of the spinal cord. A failure on the nerve's part to carry information to and from the spinal cord and brain causes the different symptoms associated with PN.

Three different types of nerves can be affected:

  • Motor nerves - responsible for voluntary movement
  • Sensory nerves - responsible for sensing temperature, pain, touch, and limb positioning

  • Autonomic nerves - responsible for involuntary functions such as breathing, blood pressure, digestion, and sexual function

Symptoms
The symptoms of PN are dependent on the nerve type affected.

  1. Motor nerve damage - muscle weakness, cramps and spasms, loss of balance and coordination

  2. Sensory nerve damage - tingling, numbness, and pain, which can be described as: · Sensation of wearing an invisible "sock" or "glove"
    • Burning, freezing, or electric-like
    • Extreme sensitivity to touch
    • Inability to determine joint position in space

  3. Autonomic nerve damage - abnormal blood pressure and heart rate, reduced ability to perspire, constipation, bladder infection, and sexual dysfunction

Causes of PN
PN affects at least 20 million people in the United States. PN can be caused by disease, nerve compression, entrapment, laceration, exposure to toxins, such as medication, or inflammation. Conditions associated with PN include, but are not limited to:

  • Alcoholism
  • Autoimmune disorders
  • Cancer
  • Carpal Tunnel Syndrome
  • Connective tissue disease (e.g. Rheumatoid arthritis, Lupus)
  • Diabetes mellitus (nearly 60% of those with diabetes suffer from PN)
  • Infectious disease (e.g. Lyme disease, HIV/AIDS, Hepatitis B)

Complications Associated with PN
Untreated PN can result in permanent loss of nerve function, tissue damage, and/or muscle atrophy (wasting away of muscle). Other complications include:

  • Partial or complete loss of movement
  • Partial or complete loss of sensation
  • Difficulty breathing
  • Difficulty swallowing

It is important to receive proper treatment and management of this condition to reduce the risk of reversible damage and other serious complications.

Treatment of PN
The ultimate goal of treatment is to identify and treat the underlying cause(s) of PN. Physical therapy is a beneficial avenue to accomplish this goal. The focus of physical therapy in treating PN is to increase muscle strength and circulation by means of various modalities and an individualized exercise program. The results have been an increase in patient independence and mobility.

 
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