CIDPUSA.ORG Autoimmune


God Our Guide

Main Links

Home page

Autoimmune Diseases Guide

Diet anti-inflammatory


Help page

Diagnosis page

Treatment Page

Muscle test

EMG or Electro-Myo-Graphy

want to learn about the brain and spinal cord

Not all the patients will have lab abnormalities. In many the EMG/NCV findings will not show that they have CIDP yet they will still have the disease.

Is EMG/NCV Insensitive in the Diagnosis of CIDP?


The clinical profile of chronic inflammatory demyelinating polyneuropathy(CIDP) is variable.The current EMG criteriafor CIDP is not sensitive.EMG IS INSENSTIVE & non diagnostic test.

In a study electrophysiologic abnormalities were those of simple axonopathy in 7 patients; the other patient had almost normal electrophysiologic results. The, examination of nerve biopsies in all 8 patients revealed loss of myelinated fibers; and various degrees of onion bulbs. These histology findings were identical to those of the 36 other CIDP patients. The authors conclude that many patients with unrecognized CIDP are erroneously classified by electrodiagnosis as having chronic axonal neuropathy and that nerve biopsy should be considered to further investigate a chronic idiopathic neuropathy.

Click to view different size nerve fibers.

Neurology. 2002 Dec 24;59(12 Suppl 6):S2-6.

Diagnosis of CIDP. Latov N. Peripheral Neuropathy Center, Weill Medical College of Cornell University, New York, NY 10022, USA.

..patients with neuropathy ofunknown etiology are more likely to have CIDP than idiopathic axonal neuropathy, and warrant a trial of therapy . A favorable response to therapy, consisting of stabilization or improvement of the neuropathy, would confirm the diagnosis