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.
Left axis deviation occurs when the QRS axis falls between -30 and -90. There are a variety of causes, including left anterior fascicular block and left ... |
Left axis deviation refers to the leftward deviation of the electrical axis of the heart, which is commonly observed in conditions such as ostium primum type ... |
Left anterior fascicular block is one of the commonest causes of left axis deviation and has specific ECG criteria for its diagnosis. Publication types. Case ... |
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