A member asked:

I had a ekg and it said it was abnormal because of a left axis deviation. what is that?

2 doctors weighed in across 2 answers
Dr. David Lipkin answered

Specializes in Internal Medicine

See answer: Heart muscle contraction is preceded by a wave of electrical activity(depolarization) that flows through the the heart. The EKG measures the direction and magnitude of this flow as seen from various directions. The electrical Axis is the general direction of this wave of depolarization. Left axis deviation can be present in several conditions and is normal in pregnancy.See: http://bit.ly/25eUf22

Answered 2/24/2018

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Dr. Matt Wachsman answered

Specializes in Internal Medicine

It's on it's side: cannot say in your particular case, but generally, it means the the heart, electrically, is moved to the left. This can be from a big belly, a big heart (bad), electrical wiring that is running badly in the heart or parts of the heart have died off in the other areas (prev heart attack). Even the big belly increases surgical risk.

Answered 1/19/2021

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