ECG Directory

Welcome to this interactive ECG course.

Although it is one of the oldest paraclinic exams, dating back to the late 19th century, the ECG is still of crucial clinical use. This examination often still poses problems of interpretation to the medical practitioner.

This course aims to help the student, the practicing physician and even the trained cardiologist to improve his knowledge in electrocardiography. It consists of 250 traces of varying complexity with a description of each one by experts. This allows the reader to compare his analysis with that of the experts. In addition, the areas of interest of the ECG can be activated to be clearly highlighted.

We hope that these plots will be useful to readers and will improve their knowledge.

The ECGs are available sorted by keywords and categories.

ECG 093

ECG 093


Basic rhythm

Sinus rhythm at 67 bpm.

P waves


PQ interval



Normal axis and duration.

ST segment

Elevated in II, aVF and from V4 to V6.

QT interval



ST segment elevation.
ST segment elevation.


Early repolarisation.


The ST segment elevation with superior concavity, associated with a break in the descending phase of the QRS complex and symmetrical high amplitude T waves, is typical of early repolarisation, which is more common in young people and black people.


Various cardiopathy


Reading level

1 / 3