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Contaminación atmosférica y accidentes cerebrovasculares en Santander

Authors: Bolívar Ruiz, Patricia;

Contaminación atmosférica y accidentes cerebrovasculares en Santander

Abstract

RESUMEN: La contaminación atmosférica constituye una amenaza para la salud mundial, siendo los sistemas respiratorio y cardiovascular los que más padecen sus efectos de forma primaria. En el presente trabajo se han analizado los ingresos por accidentes cerebrovasculares agudos (ACVAs) atendidos en el Hospital Universitario Marqués de Valdecilla (la distribución temporal, incluyendo la variable sexo y el subtipo) y su relación con los niveles de dióxido de nitrógeno (NO2) en la ciudad de Santander durante el periodo 2003-2014. El estudio de los ingresos por ACVA muestra que existe una tendencia ascendente (tanto en los de origen isquémico como hemorrágico), que no existe un patrón estacional claro, si bien el mes de junio es en el que más casos se atienden, y que los fines de semana, especialmente el domingo, disminuye de manera marcada el número de ingresos. Al analizar la relación entre la concentración de NO2 a la que la población se ve expuesta y los ingresos por ictus, se obtiene que el número de casos aumenta cuando los niveles de NO2 atmosférico se encuentran en el tercil más elevado (aun cuando la concentración de NO2 cumple la normativa recomendada por la Organización Mundial de la Salud). Esta asociación se observa en ambos subtipos de ACVA y tanto en varones como en mujeres. En conclusión, si bien por las características del análisis no se puede establecer una relación de causalidad entre el NO2 y los ACVAs atendidos en Santander, los presentes resultados plantean la necesidad de continuar trabajando en la línea, ya que esto podría permitir desarrollar estrategias de control y protocolos de prevención. Asimismo, si bien los niveles de NO2 no sobrepasaron el umbral legal durante el periodo analizado, parece importante continuar controlando las emisiones a la atmósfera.

ABSTRACT: Environmental pollution is a threat for worldwide health; the cardiovascular and the respiratory systems are the most affected primarily. In this study, the admissions in the University Hospital Marqués de Valdecilla due to stroke have been analysed (temporal distribution, including sex and subtype variables) and its relationship with nitrogen dioxide levels (NO2) in Santander, during the period 2003-2014. The analysis of the hospital admissions due to stroke shows a growing tendency (both in ischemic and haemorrhagic subtypes); there wasn’t a clear seasonal pattern, but June was the month when more cases were attended, and on weekends, especially on Sundays, the number of hospitalizations fell down significantly. The results obtained after analysing the relationship between NO2 exposure and the stroke hospital admissions show that the number of cases increases when the levels of atmospheric NO2 are in the highest tertile (even when the concentration of NO2 meet the stablished standards recommended by the WHO). This association is observed in both subtypes of strokes and in both men and women. In conclusion, although it is not possible to stablish a relation of causality between NO2 and the strokes attended in Santander due to the characteristics of the analysis, the present results propose the necessity of keeping working in this line, as it could enable the development of control strategies and prevention protocols. Furthermore, even though the levels of NO2 didn’t rise the legal umbral during the period of the study, it looks important to continue controlling the emissions to the atmosphere.

Grado en Medicina

Keywords

Stroke, Contaminación atmosférica, Ictus, Athmosferic pollution

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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