Pediatric influenza-associated myositis - Nebraska, 2001-2007
OBJECTIVE: Influenza-associated myositis (IAM), characterized by severe lower-extremity myalgia and reluctance to walk, is a complication of influenza among children. We investigated IAM in Nebraska during six influenza seasons, 2001-2007.
METHODS: During 2006-2007, we requested reports of severe influenza illness among persons aged <18 years and investigated medical records to identify and confirm IAM cases defined as severe myalgia with elevated serum creatinine kinase level in a patient aged <18 years, occurring within 7 days of laboratory confirmed influenza illness onset. Statewide hospital discharge data (HDD) were reviewed to identify retrospectively confirmed IAM cases during 2006-2007 and five previous seasons, by using surveillance data to define periods of influenza activity. Statewide IAM incidence was estimated for 2001-2002 through 2006-2007.
RESULTS: During 2006-2007, a total of 13 IAM cases were confirmed by enhanced surveillance. Median age was 6 years (range, 4-11 years). Influenza diagnosis was established by viral isolation from six patients (one influenza A and five influenza B) and rapid diagnostic tests for seven. Twelve (92%) patients, including one who died, were hospitalized for a median of 3 days (range, 1-4 days). Review of HDD identified 12 retrospectively confirmed IAM cases during 2006-2007, including four not reported through enhanced surveillance, and only one during five previous seasons (2003-2004). The HDD-derived, retrospectively confirmed statewide IAM incidence estimates/100,000 population aged <18 years were 2.693 and 0.225 during 2006-2007 and 2003-2004, respectively.
CONCLUSION: An IAM epidemic occurred in Nebraska during the 2006-2007 influenza season.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2009 |
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| Erschienen: |
2009 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:3 |
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| Enthalten in: |
Influenza and other respiratory viruses - 3(2009), 6 vom: 01. Nov., Seite 277-85 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Buss, Bryan F [VerfasserIn] |
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Date Completed 07.01.2010 Date Revised 20.10.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1111/j.1750-2659.2009.00102.x |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM192737201 |
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| 500 | |a Date Completed 07.01.2010 | ||
| 500 | |a Date Revised 20.10.2021 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a OBJECTIVE: Influenza-associated myositis (IAM), characterized by severe lower-extremity myalgia and reluctance to walk, is a complication of influenza among children. We investigated IAM in Nebraska during six influenza seasons, 2001-2007 | ||
| 520 | |a METHODS: During 2006-2007, we requested reports of severe influenza illness among persons aged <18 years and investigated medical records to identify and confirm IAM cases defined as severe myalgia with elevated serum creatinine kinase level in a patient aged <18 years, occurring within 7 days of laboratory confirmed influenza illness onset. Statewide hospital discharge data (HDD) were reviewed to identify retrospectively confirmed IAM cases during 2006-2007 and five previous seasons, by using surveillance data to define periods of influenza activity. Statewide IAM incidence was estimated for 2001-2002 through 2006-2007 | ||
| 520 | |a RESULTS: During 2006-2007, a total of 13 IAM cases were confirmed by enhanced surveillance. Median age was 6 years (range, 4-11 years). Influenza diagnosis was established by viral isolation from six patients (one influenza A and five influenza B) and rapid diagnostic tests for seven. Twelve (92%) patients, including one who died, were hospitalized for a median of 3 days (range, 1-4 days). Review of HDD identified 12 retrospectively confirmed IAM cases during 2006-2007, including four not reported through enhanced surveillance, and only one during five previous seasons (2003-2004). The HDD-derived, retrospectively confirmed statewide IAM incidence estimates/100,000 population aged <18 years were 2.693 and 0.225 during 2006-2007 and 2003-2004, respectively | ||
| 520 | |a CONCLUSION: An IAM epidemic occurred in Nebraska during the 2006-2007 influenza season | ||
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| 700 | 1 | |a Uyeki, Timothy M |e verfasserin |4 aut | |
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