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How Are QRS, Sinus Rhythm And Leftward Axis Interpreted In An ECG Report?

Posted on Mon, 7 Mar 2022

Question: I got my ECG report with following details

Sinus Rhythm, HR: 73
Leftward Axis
Otherwise normal ECG

What does it mean ???

9 months back I had done 2D Echocardiography & it was normal with Ejection fraction of 62%

Answered by Dr. Vaishalee Punj (1 hour later)

Brief Answer:
It doesnt mean anything

Detailed Answer:

Hi,

It doesn't mean anything. Up to 30 degree deviation of axis to left is normal.

Since Echo was also normal, I cannot suspect any particular condition. So I will consider it a normal ECG. Please do corelate it clinically. More than 30 degree deviation is seen in conditions like heart attack, high serum K levels, diabetes, emphysema, etc. If you are known case of such a condition, please let me know.

Dr. Vaishalee

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Vaishalee Punj (14 minutes later)

I don’t have conditions like Heart Attack, Diabetes, Serum k level, emphysema.

I would like to inform you that QRS was -6

Answered by Dr. Vaishalee Punj (39 minutes later)

Brief Answer:
QRS determines axis deviation

Detailed Answer:

Hi,

QRS determines axis deviation. If QRS is - (minus), it means the axis is deviated. Since its a small value of 6, I don't see a need to worry.

Dr. Vaishalee

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar