Biomaterial Database

An electrophysiological investigation of skeletal muscles in polymyositis. 1976

R E Sica, and O P Sanz, and N Aguilera, and A Colombi

An electrophysiological study has been made of the extensor digitorum brevis, thenar and hypothenar muscles in 25 patients with chronic and acute polymyositis. It was found a reduction of the number of functioning motor units in some patients with chronic polymyositis and only in one of those affected by acute polymyositis and only in one of those affected by acute polymyositis. The sizes of the surviving units suggested that the results could be explained in terms of a primary muscle involvement mainly in acute polymyositis, while in chronic polymyositis a combination of primary and neurogenic involvement of muscle fibers might take place.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009141	Musculoskeletal System	The MUSCLES, bones (BONE AND BONES), and CARTILAGE of the body.	Musculoskeletal Systems,System, Musculoskeletal,Systems, Musculoskeletal
D009220	Myositis	Inflammation of a muscle or muscle tissue.	Inflammatory Myopathy,Myositis, Focal,Myositis, Infectious,Idiopathic Inflammatory Myopathies,Idiopathic Inflammatory Myopathy,Idiopathic Inflammatory Myositis,Infectious Myositis,Inflammatory Muscle Diseases,Inflammatory Myopathies, Idiopathic,Inflammatory Myopathy, Idiopathic,Muscle Diseases, Inflammatory,Myopathies, Idiopathic Inflammatory,Myopathy, Inflammatory,Myositis, Proliferative,Focal Myositides,Focal Myositis,Infectious Myositides,Inflammatory Muscle Disease,Inflammatory Myopathies,Muscle Disease, Inflammatory,Myopathies, Inflammatory,Myopathy, Idiopathic Inflammatory,Myositides,Myositides, Focal,Myositides, Infectious,Myositides, Proliferative,Proliferative Myositides,Proliferative Myositis
D002908	Chronic Disease	Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2).	Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260	Female		Females
D005385	Fingers	Four or five slender jointed digits in humans and primates, attached to each HAND.	Finger
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000208	Acute Disease	Disease having a short and relatively severe course.	Acute Diseases,Disease, Acute,Diseases, Acute