Healthcare providers categorize second-degree heart block subtypes—Mobitz type 1 and type 2—based on their physical signs on an electrocardiogram (ECG), which ... can lead to severe and ...

Also, as per the Einthoven law, the six limb leads can be derived from leads 1 and 2. The purpose of this study was to evaluate whether the 12-lead ECG could be substituted by ECG sets with a ...