Electromyography (EMG) and nerve conduction studies (NCS) are not only tests to be performed in isolation and reported without consideration of the clinical context, but rather form part of what has been referred to as the electrodiagnostic consultation. Using all of the pertinent information available to the electromyographer performing the test, the electrodiagnostic consultation strives towa...

Executive Summary The electrodiagnostic medicine (EDX) evaluation is an important and useful extension of the clinical evaluation of patients with disorders of the peripheral and/or central nervous system. EDX tests are often crucial to evaluating symptoms, arriving at a proper diagnosis, and in following a disease process and its response to treatment in patients with neuromuscular (NM) disord...

S i n g l e fiber electromyography (SFEMG) has proven to be a useful electrodiagnostic tool to assess defects of neuromuscular junction transmis

An evidence-based review of electrodiagnostic (EDX) techniques in the evaluation of peroneal neuropathy was conducted to determine whether these techniques are useful for diagnosis and prognostication in this disorder. A Medline search and a review of relevant sources were performed in 1999 and updated through July 2003 to identify articles describing the use of EDX in patients suspected to hav...

Objective To demonstrate the importance of recognizing and separating nonmedian nerve-related symptoms from those related to median nerve compression at the carpal tunnel. Methods The records of 80 patients, aged 31-82 years (39 males and 41 females), who had undergone median nerve decompression using open and endoscopic release surgery, were reviewed. Peripheral electrodiagnostic studies wer...

ObjectiveSince motor nerve conduction slowing can occur due to loss of large axons, we investigate the profile in ALS and identify limits beyond which diagnosis exclusive axonal is unlikely.MethodsFirst, using linear regression analysis, established range 76 CIDP patients. Demyelinating confidence intervals were defined by assessing velocity (CV), distal latency (DML), F-wave (F) relation compo...

Factors that predispose patients to ulnar mononeuropathy at the elbow (UME) are poorly defined. We compared 112 electrodiagnostic reports which met criteria for definite or probable UME to 104 reports which excluded UME. Male gender was strongly associated with definite (OR = 6.9, 95% CI = 2.4-20.4; P < 0.001) and all UME (OR = 2.2, 95% CI = 1.2-4.1; P = 0.010) after controlling for age and bod...

Patients presumed to have lower limb symptoms localizing to the lumbar or lumbosacral plexus require rigorous electrophysiological evaluation. Entities that cause lumbosacral plexopathies may be patchy, asymmetrical and more diffuse than initially suspected. As a result, bilateral nerve conduction studies and needle examination outside those routinely tested and clinically affected may be neede...