Electrophysiological Findings of Subclinical Lower Motor Neuron Involvement in Degenerative Upper Motor Neuron Diseases
نویسندگان
چکیده
منابع مشابه
Lower Motor Neuron Findings after Upper Motor Neuron Injury: Insights from Postoperative Supplementary Motor Area Syndrome
Hypertonia and hyperreflexia are classically described responses to upper motor neuron injury. However, acute hypotonia and areflexia with motor deficit are hallmark findings after many central nervous system insults such as acute stroke and spinal shock. Historic theories to explain these contradictory findings have implicated a number of potential mechanisms mostly relying on the loss of desc...
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Although many use the term ‘motor neuron disease’ to refer to amyotrophic lateral sclerosis (ALS), the most common and serious of these disorders occurring in adults, there are a wide variety of different motor neuron diseases, of varying severity, affecting all ages from infancy onwards (Table 1). This death of motor neurons is a form of neurodegenerative disease and results in paralysis of th...
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Lower motor neuron (LMN) syndromes typically present with muscle wasting and weakness and may arise from pathology affecting the distal motor nerve up to the level of the anterior horn cell. A variety of hereditary causes are recognised, including spinal muscular atrophy, distal hereditary motor neuropathy and LMN variants of familial motor neuron disease. Recent genetic advances have resulted ...
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One of the causes of acute quadriparesis or quadriplegia is that of diffuse lower motor neuronal (LMN) dysfunction, resulting in diminished to absent reflexes in all 4 legs. In this instance the immediate differential diagnosis must include acute polyradiculoneuropathy (previously discussed), Coral snake envenomation, tick paralysis, and botulism. Other causes which normally result in normal re...
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Dear Sir A 58-year-old female had symmetric spasticity, hyperreflexia, extensor plantar responses, spastic dysarthria, and pseudobulbar symptoms. The upper motor neuron involvement had progressed gradually over more than five years, leading to weakness in all four limbs and pseudobulbar symptoms, requiring a percutaneous endoscopic gastrostomy. Denervation potentials were not detectable on need...
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ژورنال
عنوان ژورنال: Archives of Neuropsychiatry
سال: 2019
ISSN: 1309-4866
DOI: 10.29399/npa.23387