Currently there is an important need to know the evolution, results and associated mortality of patients undergoing surgical intervention in Spain during the SARS-CoV-2 pandemic. With a national data collection, information could be obtained to guide the management of this group of complex patients operated on during the COVID-19 pandemic, with the aim of improving their treatment in the event of a second wave. The great spread of the virus and the difficulty in controlling it over time makes it a high priority for the scientific community in order to face new outbreaks.

The national study "AEC COVID-19" is a collaborative study (in the style of those carried out at European level such as Eurosurg, Globalsurg, etc.) that aims to know the evolution, results and associated mortality of patients undergoing surgical intervention in Spain during the SARS-CoV-2 pandemic. It is an observational study, with anonymized and coded data, which aims to demonstrate the following hypotheses:

• Patients with COVID-19 have high mortality.
• Patients with both oncological and benign pathologies have high morbidity.

The situation / follow-up at 7 days and 30 days after the intervention will be included in each patient.

Inclusion Criteria:

Adult patients who undergo a surgical procedure during the pandemic

Exclusion Criteria:

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Adult patients who undergo a surgical procedure during the pandemic