A Comparative Trial of Standard 12 Lead ECG to the 12 Lead ECG Glove to Assess Cardiac Electrical Function

The proposed study is a two-arm, randomized, single-blinded, cross-over Phase III clinical trial in which patients in 3 distinct clinical scenarios will receive the 12LEG, followed by the standard ECG, or vice-versa. Each participant will then apply the Hand ECG themselves. The 3 clinical scenarios will be: 1. patients at preoperative assessment for elective cardiac catheterization or electrophysiology procedures; 2. patients coming for outpatient cardiology appointments; 3. Inpatients admitted with a cardiac diagnosis. The electrophysiologists reviewing ECGs will be blinded to the equipment utilized to obtain the ECG.