Two Cases of Acute Myositis Associated with Influenza A Virus Infection in the Elderly.

Oba, Koji; Nishihara, Aki; Okamura, Kojiro; Ajiro, Yumiko; Yamaguchi, Yu; Okazaki, Kyoji; Sato, Shuzo; Suzuki, T; Nakano, Hiroshi; Metori, Shouhei

doi:10.1272/jnms.67.126

Cited by 9 publications

(10 citation statements)

References 14 publications

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“…There have been approximately 27 reported cases of rhabdomyolysis in the setting of influenza infection, although this likely represents a small fraction of the total cases as myositis and/or rhabdomyolysis have infrequently been reported prior to the 2009 A(H1N1) pandemic (Table ) . Among 18 patients in Mexico with influenza A(H1N1)pdm09 infection, 62% of patients had mild‐to‐moderate elevations of creatinine kinase (CK) .…”

Section: Resultsmentioning

confidence: 99%

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The hidden burden of influenza: A review of the extra‐pulmonary complications of influenza infection

Sellers

Hagan

Hayden

et al. 2017

Influenza Resp Viruses

337

308

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Severe influenza infection represents a leading cause of global morbidity and mortality. Although influenza is primarily considered a viral infection that results in pathology limited to the respiratory system, clinical reports suggest that influenza infection is frequently associated with a number of clinical syndromes that involve organ systems outside the respiratory tract. A comprehensive MEDLINE literature review of articles pertaining to extra‐pulmonary complications of influenza infection, using organ‐specific search terms, yielded 218 articles including case reports, epidemiologic investigations, and autopsy studies that were reviewed to determine the clinical involvement of other organs. The most frequently described clinical entities were viral myocarditis and viral encephalitis. Recognition of these extra‐pulmonary complications is critical to determining the true burden of influenza infection and initiating organ‐specific supportive care.

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Section: Resultsmentioning

confidence: 99%

“…22,[152][153][154][155][156][157][158][159][160][161][162][163][164][165] Among 18 patients in Mexico with influenza A(H1N1)pdm09 infection, 62% of patients had mild-to-moderate elevations of creatinine kinase (CK) 166. Of the 27 patients reported with influenza-associated rhabdomyolysis, 15 (55%) were women and 12 (44%) were over the age of 60.…”

mentioning

confidence: 99%

The hidden burden of influenza: A review of the extra‐pulmonary complications of influenza infection

Sellers

Hagan

Hayden

et al. 2017

Influenza Resp Viruses

337

308

View full text Add to dashboard Cite

show abstract

“…Acute myositis may develop following certain viral infections (eg, influenza A),40 and is associated with variable degree of rhabdomyolysis. Typically, weakness begins within 2 weeks of the start of flu-like symptoms.…”

Section: Neurological Conditions Which Mimic Gbs Mfs and Their Subtypesmentioning

confidence: 99%

Mimics and chameleons in Guillain–Barré and Miller Fisher syndromes

2014

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Guillain-Barré syndrome (GBS) and its variant, Miller Fisher syndrome (MFS) have several subtypes, together forming a continuous spectrum of discrete and overlapping syndromes. Such is the heterogeneity within this spectrum that many physicians may be surprised to learn that these disorders are related pathophysiologically, and therefore share certain clinical features. These include history of antecedent infection, monophasic disease course and symmetrical cranial or limb weakness. The presence of cerebrospinal fluid albuminocytological dissociation (raised protein, normal cell count), antiganglioside antibodies and neurophysiological evidence of axonal or demyelinating neuropathy also support a diagnosis in many cases, but should not be relied upon. Mimics of GBS and MFS can broadly be divided into those presenting with symmetrical limb weakness and those presenting with brainstem signs. MFS and the pharyngeal-cervical-brachial variant of GBS are frequently mistaken for brainstem stroke, botulism or myasthenia gravis, whereas Bickerstaff's brainstem encephalitis is often diagnosed as Wernicke's encephalopathy. Chameleons or atypical presentations of GBS-related disorders include: paraparetic GBS, bifacial weakness with paraesthesias, acute ataxic neuropathy, acute ophthalmoparesis, acute ptosis and acute mydriasis. Many neurologists may also not be aware that deep tendon reflexes remain present or may even appear brisk in up to 10% of patients with GBS. Correct diagnosis of GBS-related disorders helps to avoid unnecessary investigations and allows early immunotherapy if appropriate.

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“…1,2 It is more common in children but has been reported in adults and the elderly. 3 Recently myositis has been associated with H1N1. 4,5 Muscle damage following influenza is likely due to direct invasion by the virus, 1,2,6 although a secondary autoimmune process has also been postulated.…”

Section: Dear Professor Kayementioning

confidence: 99%

“…4,5 Muscle damage following influenza is likely due to direct invasion by the virus, 1,2,6 although a secondary autoimmune process has also been postulated. 3 Influenza virus has also been isolated from patients with acute polymyositis with myoglobinuria, in whom muscle histology closely resembled childhood DM. 6 Sporadic cases of inflammatory myopathy have been reported following influenza vaccination, but the 1976 swine flu vaccine has not been linked to an increased risk of polymyositis or DM.…”

Section: Dear Professor Kayementioning

confidence: 99%

Dermatomyositis presenting with quadriparesis in association with H1N1 influenza

Souza

Rebello

2011

Journal of Clinical Neuroscience

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Two Cases of Acute Myositis Associated with Influenza A Virus Infection in the Elderly.

Cited by 9 publications

References 14 publications

The hidden burden of influenza: A review of the extra‐pulmonary complications of influenza infection

The hidden burden of influenza: A review of the extra‐pulmonary complications of influenza infection

Mimics and chameleons in Guillain–Barré and Miller Fisher syndromes

Dermatomyositis presenting with quadriparesis in association with H1N1 influenza

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