Extreme influenza epidemics and out-of-hospital cardiac arrest

There is compelling evidence for an association between influenza epidemics and major adverse cardiovascular events. However, the role of extreme influenza epidemics as a trigger of out-of-hospital cardiac arrest (OHCA) is unclear. Thus, we evaluated the potential association between extreme influen...

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Vydáno v:International journal of cardiology Ročník 263; s. 158 - 162
Hlavní autoři: Onozuka, Daisuke, Hagihara, Akihito
Médium: Journal Article
Jazyk:angličtina
Vydáno: Netherlands Elsevier B.V 15.07.2018
Témata:
Aged
Cardiac arrest
Epidemics - prevention & control
Epidemiology
Female
Humans
Influenza
Influenza, Human - diagnosis
Influenza, Human - epidemiology
Japan - epidemiology
Male
Middle Aged
Out-of-Hospital Cardiac Arrest - diagnosis
Out-of-Hospital Cardiac Arrest - epidemiology
Registries
Risk Factors
Statistical analysis
Sudden death
Statistical analysis
Epidemiology
Influenza
Sudden death
Cardiac arrest
ISSN:0167-5273, 1874-1754, 1874-1754
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Shrnutí:There is compelling evidence for an association between influenza epidemics and major adverse cardiovascular events. However, the role of extreme influenza epidemics as a trigger of out-of-hospital cardiac arrest (OHCA) is unclear. Thus, we evaluated the potential association between extreme influenza epidemics and incidence of OHCA. We used a quasi-experimental design with time-series analysis of national registry data for cases of OHCA from all 47 prefectures of Japan during influenza seasons between 2005 and 2014. A Poisson regression time-series model with a distributed lag non-linear model was used to estimate prefecture-specific effects of influenza epidemics on OHCA. A multivariate meta-analysis was conducted for nationally pooled estimates. In total, 481,516 OHCAs of presumed cardiac origin were reported during the study period. The minimum morbidity percentile (MMP) was estimated as the 0th percentile for influenza incidence. The overall cumulative relative risk versus the MMP was 1.25 (95% confidence interval, 1.16–1.34) for extreme influenza epidemics (at the 99th percentile of influenza incidence). The effect of extreme influenza epidemics was significant for lag periods of 1.5–7.1 and 17.9–21 days. Multivariate random-effects meta-analysis indicated significant spatial heterogeneity among prefectures (Cochran Q test, p = 0.011; I2 = 23.2%). Extreme influenza epidemics are associated with higher risk of OHCA. Our findings suggest that several weeks' prevention for extreme influenza infections should be implemented to reduce the risk of OHCA. •We investigated association between extreme influenza epidemics and OHCA.•Extreme influenza epidemics are associated with higher risk of OHCA.•There was significant spatial heterogeneity between prefectures.
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ISSN:0167-5273
1874-1754
1874-1754
DOI:10.1016/j.ijcard.2018.02.028