In the adult population, coronary artery disease, heart failure, and arrhythmias have been found to be associated with a more severe disease course with COVID-19 as well as higher mortality.
With respect to CHD, both paediatric and adult, there is a paucity of data. Many professional groups have issued guidelines for patients and parents / carers based on judgement and physiological principles rather than hard data.
A position paper from the ESC working group of adult congenital heart disease, and the International Society for Adult Congenital Heart Disease.
Nevertheless, the severity of COVID-19 respiratory syndrome and the risk of adverse or catastrophic outcomes are increased in patients with pre-existing cardiovascular disease. Patients with adult congenital heart disease (ACHD)—by definition—have underlying cardiovascular disease.