Clinical Electromyography

Clinical Quantitative Electromyography

Electromyography and Neuromuscular Disorders: Clinical Electrophysiologic Correlations

Paul S. Giacomini is a Resident in Neurology at McGill University. He received his Bachelor of Science in Microbiology and Immunology from McGill in 1997 and his MD from the University of Toronto in 2001. He recently completed his residency training in Neurology at McGill University and is currently undertaking a clinical research fellowship in experimental neuroimaging of multiple sclerosis at...

Laryngeal Electromyography: Basic Concepts and Clinical Uses

Laryngeal electromyography (LEMG) is a procedure that evaluates the integrity of the muscular and nervous systems of the larynx. This test is performed on patients who have evidence of a movement disorder of the vocal folds. The purpose of the LEMG is to help the physician diagnose and differentiate the causes of these movement disorders. There are several different types of problems that can r...

Clinical Utilization of Surface Electromyography and Needle Electromyography: A Comparison of the Two Methodologies

Needle and surface electromyography are 2 distinct modalities. They are both electro-physiological techniques aimed at the investigation of neuromuscular dysfunction. The clinical utilization of each technique is insuffi ciently known to the nonspecialist or to the typical patient. The present article aims at presenting a succint description of each modality and the differences between the two ...

Clinical expression of neurotoxic injury and diagnostic use of electromyography.

The clinical features of neurological damage produced by acrylamide, lead, organophosphates, hexacarbon solvents, and methylmercury are described, and the differences in effects of these compounds are stressed. The characteristic pattern of electrophysiological changes for each group of substances are described and correlated with pathological findings.