Reacción a "Reactions: exposure to pollution may increase stroke risk also in the short term"

The Neurology article is of great interest and reinforces previously published results on the association between environmental pollution and incident stroke. It is a meta-analysis that includes more than 110 studies with more than 18 million strokes analysed. In this particular study, this association is analysed with acute exposure to pollutants ('peaks' of pollution), observing an effect on the incidence of stroke after 5 days of exposure, as well as on stroke mortality.   

These results are undoubtedly very relevant for establishing policies aimed at reducing environmental pollution. In the latest update of the Spanish Society of Neurology stroke prevention guidelines (2021*), a specific section on environmental pollution was established, recommending, based on the evidence available at the time, the application of public health policies to reduce air pollution due to its potential effect on stroke prevention.