NCIt definition : New onset of heart failure with a clinical syndrome of dyspnea, fatigue, fluid retention/peripheral
edema that started during probable or confirmed acute COVID-19 and persisted beyond
four weeks after the initial diagnosis of COVID-19.;
Alternative definition : ACC/AHA: New-onset HF with clinical syndrome of dyspnea, fatigue, fluid retention/peripheral
edema that started during probable or confirmed acute COVID-19 and persisted beyond
4 wk after the initial diagnosis of COVID-19. Preexisting cardiovascular conditions,
or those that did not develop until after COVID-19 had resolved, should not be listed
here.;