What is left axis deviation on an ekg? i am slim, & i don't know what that meant. it seemed a bit scary because i was looking it up, & it had many cau

Electrical variance: Which can be benign or portend something more serious...Consult with your physician.

Ecg: The ECG records heart electrical activity. That activity has a magnitude and a direction. When the mean electrical direction vector moves to the left of the normal range, we call this left axis deviation. It is often of no pathologic importance. Sometimes, however, it can be caused by abnormalities. You can ask your dr. If it has any abnormal meaning in you.