The ECG is a fantastic tool that reveals a great deal of information about the heart to the physiscian. These pages should provide a useful introduction. They can be viewed in any order and the menu on the right allows you to navigate between them.

understanding the ecg

Introduction to cardiac electrophysiology and the way the ECG detects it.

analysing an ecg trace systematically

This gives you a useful system for a step-by-step approach to looking at an ECG.


A guide to understanding the cardiac axis and how to work it out from an ECG trace.


Pathologies affecting the heart and the signs they give rise to on the ECG.


Spotting common ECG patterns.