Cardiac manifestations include pericarditis, supraventricular tachycardias, and heart block. [60] Myocardial involvement/systolic dysfunction has also been described, although
[emedicine.medscape.com]
[…] findings may include the following: ST-T wave abnormalities and LVH (common) Axis deviation (right or left) Conduction abnormalities (P-R prolongation, bundle-branch block) Sinus
[emedicine.medscape.com]
[…] ora systole, atriafl fibrillation, reduced R-wave height, intraventricular conduction delay (widened QRS complex), abnormal Q-waves, low voltage, frequent premature beats, supraventricular
[intechopen.com]