👉 Learn how to rotate a figure and different points about a fixed point. Most often that point of rotation will be the ...

Description: 👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will ...

In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

Introduction: Clockwise and counterclockwise rotations of QRS transition zone in horizontal plane are long recognized electrocardiogram (ECG) findings, but data on their prognostic values are sparse.