Cervical radiculopathy is a common diagnosis with a peak onset in the fifth decade. The most commonly affected nerve root is C7, C6, and C8. The etiology is often compressive, but may arise from noncompressive sources. Patients commonly complain of pain, weakness, numbness, and/or tingling. Examination may reveal sensory or motor disturbance in a dermatomal/myotomal distribution. Neural compres...

Carpal tunnel syndrome is the most common entrapment neuropathy seen in the electrodiagnostic laboratory. Clinical assessment is an important part of the electrodiagnostic consultation and helps to form an appropriate differential diagnosis. Sensory conduction studies are a critical part of the evaluation. Using a summary index, such as the combined sensory index, is preferable to considering s...

Electrodiagnostic studies play an important role in the evaluation of patients suspected of having a myopathic disorder. They are used to exclude alternative diagnoses, confirm the presence of muscle disease, narrow down the differential, and identify an appropriate biopsy site. The most informative part of the electrodiagnostic study is needle electromyography. This allows for the analysis of ...

behçet’s ‎ disease is a multisystem vasculitis. its neurological involvement mostly includes parenchymal and non-parenchymal central nervous system manifestations. peripheral nervous system presentations are rare. a 32-yr-old male patient who fulfilled the international study group criteria for behçet’s disease, referred to our center with walking difficulty and repeated falling downs. neurolog...

A 21-year-old male presented with 4 years of progressive arm and leg weakness, wasting, areflexia, length-dependent sensory loss, and difficulty walking. Electrodiagnostic studies met diagnostic criteria for chronic inflammatory demyelinating polyneuropathy (CIDP)1. CSF analysis showed elevated total protein. MRI of the head (Figures 1 and 2) and spinal cord (Figure 3) showed spinal root hypert...

OBJECTIVE To electrophysiologically classify an Italian Guillain-Barré syndrome (GBS) population into demyelinating and axonal subtypes, to investigate how serial recordings changed the classification and to underline the pitfalls in electrodiagnosis of GBS subtypes. METHODS The authors applied two current electrodiagnostic criteria sets for demyelinating and axonal GBS subtypes in 55 patient...

Outcomes of surgery for neurogenic thoracic outlet syndrome (NTOS) in workers' compensation are poor in a majority of patients, partly due to nonspecificity of diagnosis. Most cases have no objective evidence of the presence of brachial plexus dysfunction. Up to 20% of patients experience a new adverse event. Objective neurologic signs and electrodiagnostic evidence of brachial plexus dysfuncti...

STUDY DESIGN Cross-sectional diagnostic accuracy study. OBJECTIVE To investigate the relationship between history and physical examination findings and the outcome of electrodiagnostic testing in patients with sciatica referred to physical therapy. BACKGROUND Electrodiagnostic testing is routinely used to evaluate patients with sciatica. Recent evidence suggests that the presence of radicul...

BACKGROUND Diabetic polyneuropathy (DPN) is a disabling complication of diabetes mellitus. A population-based analysis of physician utilization of nerve conduction studies (NCS) for the assessment of DPN was conducted. METHODS All electrodiagnostic encounters over a 30-month period using a computer-based neurodiagnostic instrument linked to a data registry were analyzed retrospectively. The D...