Background
Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) which is nominated as novel coronavirus disease (COVID 2019) by world health organization (WHO), has affected various countries around the world1. On 11 March 2020, WHO declared the coronavirus outbreak a pandemic and involved various countries around the world2-5. Iran, the second largest country in the Middle East also officially announced the first case of the disease. According to the available studies, different patients with COVID-19 have been evaluated descriptively and in some investigations prognostic factors have been identified 6-8, however no data have been published regarding the patients with COVID-19 undergoing cardiovascular surgery so far. In this study, we aimed to evaluate clinical course of patients undergoing cardiovascular surgery at the time of the COVID-19 epidemic at a high-volume cardiac tertiary center.