RIETE physicians group show that high concentrations of nitrogen dioxide and ozone involved in the recurrence of PE


Even though pulmonary embolism (PE) is a vascular disease of the airways, to date there were very few studies regarding the relationship that environment plays in the incidence of this pathology.

Recently, doctors of the RIETE group have analyzed the existence of such relationship and have already proved it: elevated concentrations of nitrogen dioxide and ozone, as well as temperature, interfere in the PE incidence.

Investigators collected data of 105.117 patients who were admitted in Spanish hospitals with a PE between 2001 and 2013 and crossed data of the Agencia Estatal de Meteorología in order to identify environmental risk factors in hospitalizations and deaths.

Results obtained highlighted that hospital admissions increased more during the coldest months. Moreover, the combination of low temperatures with an environment with higher concentrations of nitrogen dioxide and ozone caused more PE diagnosis.



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