CONCLUSIONS: In COVID-19 infection, LV systolic function is preserved
in the majority of patients, but LV diastolic function and RV function are
impaired. Elevated troponin and poorer clinical grade are associated with
worse RV function. In patients presenting with clinical deterioration at
follow-up, acute RV dysfunction, with or without deep vein thrombosis, is
more common, but acute LV systolic dysfunction was noted in ≈20%.