Prognostic Implications of Electromyography in Acute Anterior Poliomyelitis

Hertz, H; Madsen, A.; Buchthal, Fritz

doi:10.2106/00004623-195436050-00002

Cited by 14 publications

(2 citation statements)

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“…[23,26,27,81,82] Some electromyographers have found that muscle membrane instability is more pronounced in the more severely affected muscles. [83,84] The muscles that become extremely weak and atrophic have few to no MUAPs, but virtually all, including clinically normal muscles, will have large, polyphasic MUAPs and abnormal, decreased recruitment. [79] In a study comparing the size of MUAPs in control subjects and polio patients with and without new weakness, Agre found that the size of MUAPs was significantly larger in all polio patients, and that those with new weakness had larger units than those without.…”

Section: Electrodiagnostic Featuresmentioning

confidence: 99%

Post-Polio Syndrome: Pathophysiology and Clinical Management

Gawne

Halstead

1995

Crit Rev Phys Rehabil Med

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Post-polio syndrome (PPS) is a progressive neuromuscular syndrome characterized by symptoms of weakness, fatigue, pain in muscles and joints, and breathing and swallowing difficulties. Survivors of poliomyelitis experience it many years after their initial infection. Although the etiology for these symptoms is unclear, it may be due to motor unit dysfunction manifested by deterioration of the peripheral axons and neuromuscular junction, probably as result of overwork. An estimated 60% of the over 640,000 paralytic polio survivors in the U.S. may suffer from the late effects of polio. Their physical and functional rehabilitation care presents a challenge for practitioners in all disciplines. To evaluate these symptoms, a comprehensive assessment must be done, as frequently PPS is a diagnosis of exclusion. Care of the patient with PPS is best carried out by an interdisciplinary team of rehabilitation specialists. This article reviews the epidemiology, pathophysiology, characteristics, assessment, and rehabilitation care of the patient with PPS.

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Section: Electrodiagnostic Featuresmentioning

confidence: 99%

Post-Polio Syndrome: Pathophysiology and Clinical Management

Gawne

Halstead

1995

Crit Rev Phys Rehabil Med

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“…Coers (1954) and Wohlfart (1955) have described the same process in human muscle during recovery from poliomyelitis. If the muscles of patients in the recovering stages of poliomyelitis are examined with concentric needle electrodes it is found that the mean amplitude and the mean duration of the action potentials are greater than normal (Hertz, Madsen, and Buchthal, 1954). It is reasonable to regard these large action potentials as originating from motor units enlarged by collateral sprouting.…”

Section: Discussionmentioning

confidence: 99%