Beyond acute COVID-19: A review of long-term cardiovascular outcomes. 2/8/2023. Parhizgar P. Can J Cardiol.

This is a review of cardiac abnormalities persisting beyond one month after acute COVID-19.  They include myocarditis, asymptomatic troponin elevation, myocardial edema, pericarditis, inappropriate sinus tachycardia and bradycardia, decreased heart rate variability, atrial and ventricular dysrhythmias, postural orthostatic tachycardia syndrome, prolonged QT interval, myocardial ischemia, myocardial fibrosis, R and L ventricular dysfunction, heart failure, new onset hypertension, and pulmonary hypertension.  Patients who had mild COVID are not exempt.  Findings appear to improve over time in most but not all.  Potential mechanisms are discussed.

https://www.onlinecjc.ca/article/S0828-282X(23)00077-6/fulltext