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  • Title: Late effects of poliomyelitis.
    Author: Cosgrove JL, Alexander MA, Kitts EL, Swan BE, Klein MJ, Bauer RE.
    Journal: Arch Phys Med Rehabil; 1987 Jan; 68(1):4-7. PubMed ID: 3800623.
    Abstract:
    Muscular atrophy and decreased functional abilities are recognized as late complications of poliomyelitis. This study sought to more clearly define late-onset, postpolio muscular weakness--age of onset, symptoms, and severity--and to determine whether people might benefit from environmental modification, respiratory aids, and orthoses. A total of 183 postpolio patients were examined by a physician and completed a questionnaire on their ambulatory status and related musculoskeletal and respiratory symptoms. Of those participating in the study, 154 claimed to be experiencing late deterioration in strength. The syndrome included decreased endurance, more limited ambulation, and increased weakness in the previously affected limb/s. For those describing late-onset weakness, average ages were determined for the onset of polio (8.3 years), the onset of postpolio muscular weakness (42.3 years), and the latent period of stable functioning (34.8 years). Patients claimed to have experienced a new, lower level of strength for an average of 4.7 years. All 33 patients who had undergone muscle transfer surgery were experiencing late-onset weakness in that extremity. Fasciculations (51%) and long-bone fractures secondary to falls (21%) were common sleep disturbances occurred frequently (31%) even in those without prior bulbar involvement. Upper motor neuron signs were present in only one case. Bracing was rare (16%) and the braces used were usually old. The subjects did not report a steadily or rapidly progressive decline, but rather described a steplike decrement with long plateaus. The population described losses in strength that had significant bearing on functional status and general health.(ABSTRACT TRUNCATED AT 250 WORDS)
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