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Rev. esp. quimioter ; 29(6): 296-301, dic. 2016. tab
Article in English | IBECS | ID: ibc-158223

ABSTRACT

Background. Seasonal influenza is responsible for high annual morbidity and mortality worldwide, especially in elderly patients. The aim of the study was to analyse the epidemiological, clinical and prognostic features of influenza in octogenarians and nonagenarians admitted to a general hospital, as well as risk factors associated with mortality. Methods. Retrospective, cross-sectional, descriptive study in patients admitted and diagnosed with influenza by molecular biology in the General University Hospital of Alicante from 1 January to 31 April 2015. Results. A total of 219 patients were diagnosed with influenza in the study period: 55 (25.1%) were ≤64 years-old; 77 (35.2%) were aged 65-79; 67 (30.6%) were aged 80-89 years; and 20 (9.1%) were aged ≥90 years. Most flu episodes were caused by influenza A (n=181, 82.6%). Patients aged 80 years or older had lower glomerular filtration rate (mean: 49.7 mL/min vs. 62.2 mL/min; p=0.006), a greater need for non-invasive mechanical ventilation (22% vs 9.3%; p=0.02), greater co-morbidity due to cardiac insufficiency (40.5% vs. 16.4%; p<0.001) and chronic renal disease (32.9 vs. 20%, p=0.03), and greater mortality (19% vs. 2.9%; p<0.001). In a multivariate analysis, mortality was higher in those aged 80 or over (adjusted odds ratio [ORa] 9.2, 95% confidence interval [CI] 1.65-51.1), those who had acquired the flu in a longterm care facility (ORa 11.9, 95% CI 1.06-134), and those with hyperlactataemia (ORa 1.89, 95% CI 1.20-3.00). Conclusions. Seasonal influenza is a serious problem leading to elevated mortality in octogenarian and nonagenarian patients admitted to a general hospital (AU)


Introducción. La gripe epidémica estacional es responsable de una elevada morbi-mortalidad cada año en el mundo especialmente en pacientes de edad avanzada. El objetivo del estudio fue presentar las características epidemiológicas, clínicas y pronósticas de la gripe estacional en octogenarios y nonagenarios ingresados en un hospital general y analizar los factores asociados con la mortalidad. Material y métodos. Estudio descriptivo transversal retrospectivo de los pacientes ingresados con gripe diagnosticados por biología molecular en el Hospital General Universitario de Alicante desde el 1 de enero del 2015 hasta 31 de abril del 2015. Resultados. En el periodo de estudio fueron diagnosticados 219 pacientes, de ellos 55 (25,1%) eran ≤64 años, 77 (35,2%) adultos de entre 65 y 79 años, 67 (30,6%) entre 80-89 años y 20 (9,1%) ≥90 años. La mayoría de los episodios fueron gripe causada por influenza A (n=181; 82,6%). Los pacientes ≥ 80 años tenían unos valores medios de un filtrado glomerular inferior (media: 49,7 mL/ min vs. 62.2 mL/min; p=0,006), mayor requerimiento de ventilación mecánica no invasiva (22% vs 9,3%; p=0,02), una mayor comorbilidad por insuficiencia cardiaca (40,5% vs. 16,4%p<0,001) y enfermedad renal crónica (32,9 vs. 20%, p=0,03), así como mayor mortalidad (19% vs. 2,9%; p<0,001). En el análisis multivariado, la mortalidad fue superior en los mayores de 80 años (odds ratio ajustada [ORa]: 9,2, intervalo de confianza [IC] del 95%: 1,65-51,1), con adquisición de la gripe en un centro socio sanitarios (ORa: 11,9, IC 95%: 1,06-134) y la hiperlactacidemia (ORa: 1,89, IC 95%: 1,20-3,00). Conclusiones. La gripe es un grave problema con elevada mortalidad en pacientes octogenarios y nonagenarios ingresados en un hospital general (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Influenza, Human/epidemiology , Rhinitis, Allergic, Seasonal/epidemiology , Rhinitis, Allergic, Seasonal/prevention & control , Prognosis , Frail Elderly/statistics & numerical data , Indicators of Morbidity and Mortality , Influenza, Human/mortality , Comorbidity , Heart Failure/complications , Renal Insufficiency, Chronic/complications , Multivariate Analysis , Confidence Intervals , Influenza A Virus, H1N1 Subtype/isolation & purification
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