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 ...

OBJECTIVE To examine the usefulness of the second lumbrical-interosseous (2L-INT) distal motor latency (DML) comparison test in localizing median neuropathy to the wrist in patients with absent median sensory and motor response in routine nerve conduction studies. METHODS Electrodiagnostic results from 1,705 hands of patients with carpal tunnel syndrome (CTS) symptoms were reviewed retrospect...

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 Current electrodiagnostic criteria for chronic inflammatory demyelinating polyneuropathy (CIDP) are research oriented favoring specificity over sensitivity. Application of such criteria in clinical practice may miss the diagnosis in potentially treatable patients. OBJECTIVES To analyze the electrophysiologic abnormalities in a cohort of patients with clinically defined CIDP, to com...

Two important characteristics make this paraclinic method different from others; to be both functional and objective. Many ocular tests as angiography, ultrasonography and OCT are objective but not functional, and some, as perimetry and contrast sensitivity test are functional but not objective. This is why electrodiagnostic tests are problem solving and conclusive in equivocal instances specia...

OBJECTIVE To determine which ultrasonographic measurement can be used as an indicator reflecting the severity of carpal tunnel syndrome (CTS), by comparing electrodiagnostic results with ultrasonographic measurements in females. Many previous studies have tried to reveal that the ultrasonography (US) can possibility be used for diagnosis and severity of CTS. However, the criteria are different ...

This article reviews the use of electrodiagnostic testing in disorders of neuromuscular transmission and discusses the differences between various presynaptic and postsynaptic disorders. Attention is paid to quality control issues that influence the sensitivity of repetitive nerve stimulation and single fiber electromyography. Electrodiagnostic testing, when used as an extension of the clinicia...

Electrodiagnostic Studies in Neurologically Asymptomatic Patients with Vitamin B12 Deficiency Füsun Mayda DOMAÇ, Geysu KARLIKAYA, Yılmaz ÇETİNKAYA, Mehmet GENCER, Tülin TANRIDAĞ, Önder US Erenköy Mental and Neurological Disease. Training and Research Hospital, İstanbul Acıbadem University, Department of Neurology, İstanbul Haydarpaşa Numune Training and Research Hospital, Department of Neurolog...

This article reviews the usefulness of the electrodiagnostic examination in patients who have suspected cervical and lumbosacral radiculopathy. This study can verify the presence and severity of radiculopathy, determine which levels are involved, and provide an electrodiagnostic correlate to imaging abnormalities. A practical approach for conducting the nerve conduction portion and needle elect...