OBJECTIVES: To examine epidemiological and clinical data of individuals aged 65 and older with influenza virus A (H1N1) admitted to the intensive care unit (ICU) and to identify independent predictors of ICU mortality. DESIGN: Prospective, observational, multicenter study to determine prognostic factors in individuals infected with influenza A (H1N1) admitted to the ICU. SETTING: One hundred forty-eight Spanish ICUs. PARTICIPANTS: Individuals with influenza A (H1N1) confirmed using real-time polymerase chain reaction from April 2009 to July 2011. MEASUREMENTS: Individuals aged 65 and older were compared with younger individuals. A multivariate analysis was conducted to determine independent predictors of mortality in this population. RESULTS: One thousand one hundred twenty individuals (129 (11.5%) aged 65) were included. Prevalence of chronic diseases was more common in older individuals. Viral pneumonitis was more frequent in individuals younger than 65 (70.5% vs 54.3%, P < .001). In older individuals, Acute Physiology and Chronic Health Evaluation II score (odds ratio (OR) = 1.11, 95% confidence interval (CI) = 1.11–1.20, P = .002), immunosuppression (OR = 3.66, 95% CI, 1.33–10.03, P = .01) and oseltamivir therapy initiated after 48 hours (OR = 3.32, 95% CI = 1.02–10.8, P = .04) were identified as independent variables associated with mortality. Corticosteroid use was associated with a trend toward greater mortality (OR = 2.39, 95% CI = 0.98–5.91, P = .06). CONCLUSION: Individuals aged 65 and older with influenza A (H1N1) admitted to the ICU have a higher incidence of underlying diseases than younger individuals and differences in clinical presentation. Early oseltamivir therapy is associated with better outcomes in elderly adults.
OBJECTIVES: To examine epidemiological and clinical data of individuals aged 65 and older with influenza virus A (H1N1) admitted to the intensive care unit (ICU) and to identify independent predictors of ICU mortality. DESIGN: Prospective, observational, multicenter study to determine prognostic factors in individuals infected with influenza A (H1N1) admitted to the ICU. SETTING: One hundred forty-eight Spanish ICUs. PARTICIPANTS: Individuals with influenza A (H1N1) confirmed using real-time polymerase chain reaction from April 2009 to July 2011. MEASUREMENTS: Individuals aged 65 and older were compared with younger individuals. A multivariate analysis was conducted to determine independent predictors of mortality in this population. RESULTS: One thousand one hundred twenty individuals (129 (11.5%) aged 65) were included. Prevalence of chronic diseases was more common in older individuals. Viral pneumonitis was more frequent in individuals younger than 65 (70.5% vs 54.3%, P < .001). In older individuals, Acute Physiology and Chronic Health Evaluation II score (odds ratio (OR) = 1.11, 95% confidence interval (CI) = 1.11–1.20, P = .002), immunosuppression (OR = 3.66, 95% CI, 1.33–10.03, P = .01) and oseltamivir therapy initiated after 48 hours (OR = 3.32, 95% CI = 1.02–10.8, P = .04) were identified as independent variables associated with mortality. Corticosteroid use was associated with a trend toward greater mortality (OR = 2.39, 95% CI = 0.98–5.91, P = .06). CONCLUSION: Individuals aged 65 and older with influenza A (H1N1) admitted to the ICU have a higher incidence of underlying diseases than younger individuals and differences in clinical presentation. Early oseltamivir therapy is associated with better outcomes in elderly adults.
Authors: Francisco Álvarez-Lerma; Judith Marín-Corral; Clara Vila; Joan Ramón Masclans; Francisco Javier González de Molina; Ignacio Martín Loeches; Sandra Barbadillo; Alejandro Rodríguez Journal: Crit Care Date: 2016-10-23 Impact factor: 9.097
Authors: Yi Zhang; Wenjie Sun; Erik R Svendsen; Song Tang; Raina C MacIntyre; Peng Yang; Daitao Zhang; Quanyi Wang Journal: Crit Care Date: 2015-02-20 Impact factor: 19.334
Authors: Brenda L Coleman; Shaza A Fadel; Tiffany Fitzpatrick; Sera-Melisa Thomas Journal: Influenza Other Respir Viruses Date: 2017-12-02 Impact factor: 4.380