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. 2020 Nov 26;5:17–25. doi: 10.1016/j.xjon.2020.11.008

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© 2020 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Graph showing the trend in mortality due to COVID-19 in the United Kingdom displayed weekly (blue line) and the surgical mortality for AAS operated on during the same period of time in the study participating centers (red line). The lines crossover on the week of the March 16, 2020, corresponding with the start of the lockdown in the United Kingdom, when the number of COVID-19 cases started to increase exponentially and the AAS activity decreased initially due to the reduced presentation to emergency departments. Both curves reached a peak around middle of April to descend in a parallel way after that. Note that the scale for the COVID-19 mortality has been adapted and has to be multiplied × 100. COVID-19, Coronavirus disease 2019; AAS, acute aortic syndrome.