Influenzal acute myositis in the elderly

Congy, F; Hauw, Jean‐Jacques; Wang, A.; Moulias, R

doi:10.1212/wnl.30.8.877

Cited by 20 publications

(9 citation statements)

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“…Since then benign acute myositis has been reported in many epidemics of influenza A and B and similar reports have occurred associated with the 2009 influenza A [23,24]. Most cases develop in school-age boys but myositis does occur in adults [25]. Muscle symptoms usually begin 3 days (range, 1-4) after onset of symptoms of influenza with pain in one or both calves and difficulty in walking.…”

Section: Acute Myositis and Myopathy Associated With Influenzamentioning

confidence: 89%

“…T2-weighted images and contrast-enhanced images show a patchy high signal of the involved muscle accompanied by fascial edema and subcutaneous edema localized to the tissues overlying the involved muscle [26,27]. Histopathologic examination of the few reported muscle biopsies shows areas of muscle degeneration, occasional foci of frank necrosis, and minimal inflammatory infiltrates [25,28]. In mild cases, the muscle fiber changes may be patchy without inflammation suggesting the process was more a myopathy than myositis.…”

Section: Acute Myositis and Myopathy Associated With Influenzamentioning

confidence: 99%

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Neurologic and Muscular Complications of the 2009 Influenza A (H1N1) Pandemic

Davis

2010

Curr Neurol Neurosci Rep

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In the spring of 2009 a new triple-reassortant of influenza A (H1N1) virus appeared in Mexico and rapidly spread around the world, becoming a pandemic that primarily infected children and uncommonly older adults. Accompanying the pandemic were associated neurologic and muscular syndromes that affected primarily children and included febrile seizures, encephalopathy/encephalitis with or without seizures, delirium, focal neurologic syndromes, Guillain-Barré syndrome, myositis, and myocarditis. Neither the frequency nor the severity of these syndromes appears different from those recognized during periods of infections of previous influenza A viruses. I review the clinical, laboratory, neuroimaging, and pathologic characteristics of the associated syndromes appearing in the first wave of the pandemic, compare them to similar cases occurring in previous years, and explore several theories of pathogenesis.

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Section: Acute Myositis and Myopathy Associated With Influenzamentioning

confidence: 89%

Section: Acute Myositis and Myopathy Associated With Influenzamentioning

confidence: 99%

Neurologic and Muscular Complications of the 2009 Influenza A (H1N1) Pandemic

Davis

2010

Curr Neurol Neurosci Rep

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“…Acute myositis complicating influenza has been described in children during epidemics and, rarely, in young adults [7]. The symptoms in adults tend to be more severe than in children [8].…”

Section: Discussionmentioning

confidence: 99%

A case of bilateral temporal muscle myositis accompanied by rare facial cleft

Ueda

Tajima

Shirakabe

et al. 1999

European Journal of Plastic Surgery

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A case of myositis of both temporalis muscles in a craniofacial cleft is described. The patient was a 19-year-old male who underwent orbital translocation for hypertelorism thirteen months previously. He complained of bilateral painful temporal swellings and trismus with a high fever. Initially, antibiotic therapy seemed to be effective. At operation both temporalis muscles were slightly edematous but normal in color. No pus nor necrotic tissue was seen. A titanium plate and screws covered by the muscle on each side were removed. The postoperative course was uneventful. The histopathological diagnosis of the biopsied muscle was myositis.

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“…Its common causes are bacterial or viral infection [1,2], paraneoplastic syndrome [3], injected foreign bodies [4] or eosinophilic fasciitis [5]. We report a case of spontaneously remitted pectoral fasciitis accompanied by nodular calcification not caused by any of those factors.…”

mentioning

confidence: 99%