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2019-11-16 0:28:44


Insel M, Natt B, Mosier J, Malo J, Bime C. The Association of Non-Cardiac ECMO With Influenza Incidence: A Time Series Analysis. Respir Care. 2018 Oct 30
submited by kickingbird at Nov, 3, 2018 17:26 PM from Respir Care. 2018 Oct 30

BACKGROUND:
The 2009 H1N1 influenza epidemic saw a rise in the use of extracorporeal membrane oxygenation (ECMO) as a supportive therapy for refractory ARDS. We sought to determine whether ECMO utilization follows a seasonal pattern that matches the influenza season, and whether it can further be explained by the incidence of each influenza subtype.
METHODS:
We performed a longitudinal analysis of non-cardiac and cardiac-associated ECMO cases from the National In-patient Sample from 2005 to 2014, using overdispersed Poisson regression to evaluate associations with influenza incidence categorized by influenza-like illness and total positive influenza tests divided by subtype from the Centers for Disease Control and Prevention.
RESULTS:
Non-cardiac ECMO use was positively associated with influenza-like illness incidence in the current month (incidence risk ratio [IRR] 1.11, 95% confidence interval [CI] 1.07-1.15, P < .001) and with influenza-like illness in the previous month (IRR 1.09, 95% CI 1.05-1.14, P < .001). The 2009 H1N1 subtype had the strongest association with non-cardiac ECMO (IRR 1.19, 95% CI 1.09-1.31, P < .001). Cardiac ECMO was also positively associated with the incidence of influenza-like illness (IRR 1.05, 95% CI 1.01-1.09, P = .02).
CONCLUSION:
Non-cardiac and cardiac ECMO use in the United States were significantly associated with influenza incidence. The influenza A, H1N1 2009, subtype had the strongest association.

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