Distal median nerve dysfunction
    
Share |
 
  

Diseasereference.net - Comprehensive articles covering over 1,700 topics. The articles are organized by the disease, condition overview, symptoms, treatment, and prevention.


Drugs search, click the first letter of a drug name:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9

Terms search, click the first letter of a term name:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Online medical services

Medical dictionary Med-Terms.net is a searchable dictionary of medical terms from medicine and related fields. Search for medical terms with our medical dictionary.

Drugs & Medications Search our drug database for comprehensive prescription and patient information on 24,000 drugs online. Drugspedia.net - The Internet Drug Index for prescription drugs and medications.

PMS blog Premenstrual syndrome (PMS), PMS headache


Blue waffles disease, blog. Blue waffle infection, blue waffle disease pictures.

  

 

Disease Reference

Click on the first letter in the disease name:

| 4 | 5 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z



     

Distal median nerve dysfunction

Definition

Distal median nerve dysfunction is a form of peripheral neuropathy that affects the movement of or sensation in the hands.

A common type of distal median nerve dysfunction is carpal tunnel syndrome.

Alternative Names

Neuropathy - distal median nerve

Causes

Dysfunction of one nerve group, such as the distal median nerve, is called mononeuropathy. Mononeuropathy means there is a local cause of the nerve damage, although occasionally systemic (body-wide) disorders may cause isolated nerve damage (for example, mononeuritis multiplex).

Distal median nerve dysfunction occurs when the nerve is inflamed, trapped, or injured by trauma. Trapping (entrapment) involves pressure on the nerve where it passes through a narrow area. Wrist fractures may injure the median nerve directly or may increase the risk for trapping a nerve later on.

The nerve can also be compressed at the wrist by tendonitis, arthritis, or conditions that affect connective tissue or cause deposits in the tissues (such as multiple myeloma, pregnancy, acromegaly, and hypothyroidism). These mechanical factors may cause nerve disease, blocking blood flow to the area.

In some cases, no cause can be identified.

See also: Carpal tunnel syndrome

Symptoms

  • Sensation changes of the thumb and first 2 fingers
    • Numbness, decreased sensation
    • Tingling, burning sensation
    • Waking up at night with wrist or hand pain (may be severe)
  • Weakness of the hand
    • Dropping things
    • Difficulty grasping objects

Exams and Tests

Examination may show decreased sensation in the thumb side (radial) fingers of the hand. There may be weakness of the thumb and difficulty using it to pinch.

Tests that reveal distal median nerve dysfunction may include:

  • EMG (a recording of electrical activity in muscles)
  • Nerve conduction tests
  • Nerve biopsy (rarely needed)

Tests are guided by the suspected cause of the dysfunction as suggested by the patient's history, symptoms, and pattern of symptom development. They may include various blood tests, x-rays, imaging scans, or other tests and procedures.

Treatment

Treatment is aimed at correcting the underlying cause.

If the median nerve is affected by carpal tunnel syndrome, a wrist splint can reduce further injury to the nerve and help alleviate symptoms. In some cases, no treatment is required and recovery is spontaneous. Over-the-counter or prescription medication may be needed to control nerve pain (neuralgia).

If other nerves are also affected, it is necessary to look for an underlying medical problem that can affect nerves. Medical conditions such as diabetes and kidney disease can damage nerves. In these cases, treatment is directed at the underlying medical condition.

Physical therapy exercises may be appropriate for some people to maintain muscle strength. Orthopedic assistance may maximize the ability to use the hand and may include braces, splints, or other appliances. Vocational counseling, occupational therapy, occupational changes, job retraining, or measures may be recommended.

Outlook (Prognosis)

If the cause of the nerve dysfunction can be identified and successfully treated, there is a possibility of full recovery. In some cases, there may be partial or complete loss of movement or sensation. Nerve pain may be severe and persist for a prolonged period of time.

Possible Complications

  • Partial or complete loss of hand movement
  • Partial or complete loss of sensation in the fingers
  • Recurrent or unnoticed injury to the hand

When to Contact a Medical Professional

Call your health care provider if symptoms of distal median nerve dysfunction are present. Early diagnosis and treatment increase the chance of controlling symptoms.

Prevention

Prevention varies depending on the cause. In patients with underlying diabetes, controlling blood sugar may reduce the risk of developing nerve disorders.

In occupations that require repetitive wrist movements, a change in the way the job is performed may be necessary. Frequent breaks in activity, "wrist rests" on keyboards, and other measures may reduce the risk of distal median nerve dysfunction. When possible, avoid prolonged repetitive movement of the wrist.

Email to a Friend


Your Name:

Friend's Email:



More about Distal median nerve dysfunction - Drugs.com
   Distal median nerve dysfunction
Agoraphobia
Avoidant personality disorder
Cancer - throat or larynx
Acute intermittent porphyria
Cholelithiasis
Abortion - elective or therapeutic
Aphasia - primary progressive
Angio-osteohypertrophy
Preemie



 
  
Medical dictionary | Natural mosquito repellents | Dust mites pictures | Prescription Drug Information | new 401k rules | Hyperkeratosis pilaris treatment
© Copyright by Diseasereference.net 2006-2007. All rights reserved