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 218

ECG 218


Baseline rhythm

Regular at 96 bpm.P-waves: negative in II, III and aVF.PR interval: normal.QRS: normal, axis +40°.ST segment: normal.T-waves: normals.QT interval: normal.


Negatives P waves.


Right atrial rhyhtm.


The negative P waves in the inferior leads are typical for a right atrial rhythm. The P waves remain positive in I and aVL which exclude a left atrial rhythm.


Ectopic rhythm


Reading level

1 / 3