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Inicio Medicina Clínica (English Edition) Epidemiology of community-acquired severe sepsis. A population-based study
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Vol. 147. Issue 4.
Pages 139-143 (August 2016)
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Vol. 147. Issue 4.
Pages 139-143 (August 2016)
Original article
Epidemiology of community-acquired severe sepsis. A population-based study
Epidemiología de la sepsis grave adquirida en la comunidad. Estudio de base poblacional
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Jordi Almiralla,b,
Corresponding author
jalmirall@csdm.cat

Corresponding author.
, Estel Güella, Josep A. Capdevilac, Lluís Campinsd, Elisabet Palomerae, Rafael Martineza, Gloria Miróa, Mari C. de la Torrea, Manel Solsonaa, Juan Carlos Yébenesa,f
a Servei de Medicina Intensiva, Hospital de Mataró, Mataró, Barcelona, Spain
b Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Universitat Autònoma de Barcelona, Barcelona, Spain
c Servei de Medicina Interna, Universitat Autònoma de Barcelona, Mataró, Barcelona, Spain
d Servei de Farmàcia, Hospital de Mataró, Mataró, Barcelona, Spain
e Unitat de Recerca, Consorci Sanitari del Maresme, Mataró, Barcelona, Spain
f Grup de Recerca en Sepsia, Imflamació i Seguretat, Escola Superior de Ciències de la Salut, Mataró, Barcelona, Spain
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Tables (3)
Table 1. Clinical characteristics and factors associated with mortality of severe community-acquired sepsis requiring ICU admission (No.=917).
Table 2. Multivariate analysis of factors related to intra-ICU mortality.
Table 3. Description of the incidence and main clinical and progression characteristics.
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Abstract
Background and objective

Most studies aimed at getting to know the incidence of severe sepsis have methodological limitations which condition results that are difficult to compare and are inapplicable when it comes to estimating the necessary resources. Our objective is to evaluate the incidence and epidemiological aspects of community-acquired severe sepsis which require intensive care unit admission.

Patients and method

Prospective observational population-based study in a population of 180,000 adults over 15 years old and a general hospital with 350 beds and 14 ICU beds. All episodes of community-acquired infection requiring admission to ICU due to severe sepsis were registered over a period of 9 years. The variables analyzed were: age, sex, SAPS II score, length of stay in ICU, type of infection, isolated microorganism, and deaths during their ICU admission. A statistical bivariate analysis and a multiple logistic regression were performed.

Results

Nine hundred and seventeen episodes with an average age of 65.2 years. The most frequent infectious focus was pulmonary (55.2%). The average SAPS II severity score index was 37.87 and mortality 19.7%. The annual incidence was 51.54 episodes per 100,000 adult inhabitants, meaning 1.97 ICU beds per day. In the multivariate analysis, the SAPS II score and a known aetiology were demonstrated as mortality risk factors.

Conclusions

This study brings us some epidemiological data from a population-based perspective which help us to care for patients better in our geographical area. The average annual incidence is 51.5 cases per 100,000 adult inhabitants which means that 2 ICU beds per day to attend this population.

Keywords:
Severe community sepsis
Epidemiology
Incidence
Septic code
Resumen
Antecedentes y objetivo

La mayoría de los estudios destinados a conocer la incidencia de sepsis grave poseen limitaciones metodológicas que condicionan resultados difícilmente comparables y poco aplicables a la hora de estimar los recursos necesarios. Nuestro objetivo es conocer la incidencia real de sepsis grave de adquisición comunitaria que requieren de UCI y analizar aspectos epidemiológicos relacionados.

Pacientes y método

Estudio observacional prospectivo en una base poblacional de 180.000 adultos>15 años y un hospital general de 350 camas de hospitalización con 14 camas de UCI. Se registraron todos los pacientes con sepsis grave o shock séptico adquiridos en la comunidad, con requerimiento de ingreso en UCI, durante un período de 9 años. Las variables recogidas fueron: edad, sexo, SAPS II, días de estancia en UCI, tipo de infección, microorganismo aislado y fallecimientos (durante su estancia en UCI). Se ha realizado un análisis estadístico bivariante y una regresión logística múltiple.

Resultados

Se incluyeron 917 episodios en pacientes con una edad media de 65,2 años. El foco infeccioso más frecuente es el respiratorio (55,2%). El índice de gravedad SAPS II medio fue de 37,87 y la mortalidad de 19,7%. La incidencia anual media de las sepsis graves adquiridas en la comunidad ha sido de 51,54 episodios por 100.000 habitantes, precisando 1,97 camas de UCI/día. En el análisis multivariante el SAPS II y tener etiología conocida se muestran como factores de riesgo de mortalidad.

Conclusiones

El estudio aporta datos epidemiológicos desde una perspectiva de base poblacional que contribuyen a cuantificar la necesidad de recursos asistenciales para atender la sepsis grave adquirida en la comunidad en nuestra área geográfica. La incidencia anual media es de 51,5 casos por 100.000 habitantes adultos, lo que supone la necesidad de disponer de 2 camas de UCI/día para atender a dicha población.

Palabras clave:
Sepsis comunitaria grave
Epidemiología
Incidencia
Código séptico

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