Reopening
The relief of the lockdown was carried out in accordance with the epidemiological diversity of the different regions. Four phases were defined (Phases 0 to 3), undertaken differentially depending on the epidemiological data and the availability of resources in the autonomous communities. The objective criteria for the CC. AA. to start de-escalation were to have access to or capacity to install, within a maximum period of five days, between 1.5 and 2 intensive care beds, and between 37 and 40 beds for acute patients per 10,000 inhabitants (19). The major challenge of cardiac surgery units at this time is to resume elective activity, based on safety criteria and rational use of resources that allow handling eventual successive outbreaks.