Nov 17, 2024 · Cardiac axis represents the sum of depolarisation vectors generated by individual cardiac myocytes. Clinically is is reflected by the ventricular axis, and interpretation relies on determining the relationship between the QRS axis and limb leads of the ECG (below diagram)

Learn the definition and physiology of the electrical axis of the heart, with emphasis on ECG and clinical implications.

Mar 17, 2025 · We provide you with three simple methods to determine the Heart Axis of an Electrocardiogram. It is not as difficult as it seems.

Mar 6, 2011 · Cardiac axis represents the overall direction of electrical activity as it spreads through the cardiac conduction system. In other words, it represents the net effect of all generated action potentials within the heart.

The electrical axis reflects the average direction of ventricular depolarization during ventricular contraction. The direction of the depolarization (and thus the electrical axis) is generally alongside the heart’s longitudinal axis (to the left and downwards). Figure 38 shows the coordinate system where the green area displays the range of ...

The axis of the ECG is the major direction of the overall electrical activity of the heart. It can be normal, leftward (left axis deviation, or LAD), rightward (right axis deviation, or...

At the heart of ECG interpretation lies the ability to determine whether the ECG waves and intervals are normal. This chapter will focus on the ECG waves in terms of morphology (appearance), durations and intervals.

Learn about ventricular depolarization, the electrical axis, ECG leads, deflections, and the 12-lead ECG. Explore QRS complex, neutral plane, and heart vectors.

The ECG axis is the direction of the overall electrical activity of the heart. ECG can be used to help identify problems with the heart's rhythm (cardiac arrhythmia) or with the conduction of electricity through the heart. The axis is measured in degrees, from 0 (horizontal) to +90 (vertical) and -90 (inverted).

Dec 21, 2024 · The cardiac axis shows the overall direction of electrical depolarization in the heart, reflected in the QRS complex on an ECG. By learning how to analyze it, I’ve been able to identify subtle yet significant cardiac pathologies more effectively.