<P> In electrocardiography , left axis deviation ( LAD ) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between − 30 ° and − 90 ° . This is reflected by a QRS complex positive in lead I and negative in leads aVF and II . </P>
<P> In electrocardiography , left axis deviation ( LAD ) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between − 30 ° and − 90 ° . This is reflected by a QRS complex positive in lead I and negative in leads aVF and II . </P>
what is the meaning of left axis deviation in ecg
what is the meaning of left axis deviation in ecg
a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between − 30 ° and − 90 °
a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between − 30 ° and − 90 °