Cardiac arrest (CA) remains associated with very high mortality, with only one in ten patients surviving to hospital discharge [1–3]. Over the last three years, the widespread prevalence of COVID-19 infection has been associated with a significant parallel rise in the incidence of CA [1–4]. We aimed to assess (1) the incidence of COVID-19 infection in patients hospitalized with cardiac arrest and (2) the impact of concomitant COVID-19 and cardiac arrest on in-hospital mortality in the United States.
