Note that the ST segments in V4 and V5 are dramatically elevated in a shape different than a ... This meets Sgarbossa criteria, however again this has not been validated in a paced rhythm ...

In Family A, the proband’s 12-lead ECG (Panel A), recorded at 63 years of age, shows atrial paced rhythm; concave-upward ST-segment depression in leads I, II, aVL, aVF, and V2 through V6; and ST ...