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Rev. méd. Chile ; 151(7)jul. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1565670

ABSTRACT

Introducción: En Chile, los virus respiratorios son una causa frecuente de neumonía adquirida en la comunidad (NAC), con admisión a unidades de paciente crítico en adultos. Los agentes etiológicos asociados son influenza A y B, virus respiratorio sincicial (VRS) y Hantavirus, sumándose el SARS-CoV-2 desde 2020. Objetivo: Identificar variables clínicas y de laboratorio asociadas a mortalidad a 30 días en NAC virales graves en un centro del sur de Chile. Metodología: Estudio observacional, se agruparon dos cohortes de pacientes con NAC grave según criterio IDSA/ATS (años 2013-2018, "No COVID-19") y año 2020 ("COVID-19"). Se recolectaron datos sociodemográficos, clínica, laboratorio y mortalidad a 30 días. Se utilizaron pruebas de Chi-cuadrado y Prueba t- student, para variables categóricas y continuas respectivamente. La mortalidad se evaluó mediante regresión logística binaria, con resultados reportados como Odd ratios (ORs). Resultados: La mortalidad a 30 días fue: Hanta virus 54.5%, H1N1 36,8%, 30,4% otras influenza, 25% VRS y 23,6% para COVID-19. Sin diferencia significativa entre el tipo de virus (COVID-19 o NO COVID-19). La mortalidad se asoció con edad > 65 años (OR: 4,6; p 65 años, inmunosupresión, cianosis y uremia al ingreso se asociaron con mayor mortalidad a 30 días en los ingresos por NAC viral grave.


Introduction: Severe community-acquired pneumonia (CAP) due to respiratory viruses is highly prevalent in Chile. Common etiologies include Influenza A and B, respiratory syncytial virus (RSV), Hantavirus, and SARS-CoV-2 since 2020. Objective: To identify clinical and laboratory features associated with 20-day mortality in severe viral CAP in a high complexity health care center in southern Chile. Methods: The observational study included two cohorts of patients with severe CAP according to IDSA/ATS criteria: the years 2013-2018 (No COVID-19) and the year 2020 (COVID-19). Sociodemographic, clinical, laboratory, and 30-day mortality data were collected. We used Chi-square and Student's T for categorical and continuous variables. We used a binary logistic regression model for mortality analysis, reporting the results as Odd ratios (ORs). Results: Mortality at 30 days was: Hantavirus 54.4%, Influenza H1N1 36.8%, other influenza 30.4%, RSV 25%, and COVID-19 23.6%. We found no significant difference regarding type of virus (COVID-19 or NO COVID-19). Mortality was associated with older age (OR: 4.6; p-value < 0.01), immunosuppression (OR: 5.8; p-value 0.01), and cyanosis (OR: 3.8, p-value 0.02). Conclusion: COVID-19 was not associated with an increased risk of 30-day mortality compared to other common respiratory viruses in our study. Older age, immunosuppression, and cyanosis were associated with higher risk among patients with severe viral CAP.

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