ABSTRACT Introduction: Since the coronavirus disease 2019 (COVID-19) pandemic. cardiac surgeries in patients with previous infection by COVID-19 were suspended or postponed. which led to surgeries performed in patients with an advanced stage of their disease and an increase in the waiting list. There is a heterogeneous attitude in Latin America on the optimal timing to cardiac surgery... https://herbsdailyes.shop/product-category/needles-and-syringes-accessories/