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 195

ECG 195


Same patient as ECG 194 but after correction of the hypocalcemia. Of note is the normalization of the duration of the QT interval.


Normal QT interval.


Normalisation of the duration of the QT interval. Micropotentials of the QRS complex.


This tracing is recorded from a heart transplant patient. Micropotentials are quite often encountered in everyday practice and in this patient are secondary to obesity. The incomplete RBBB is classically encountered in heart transplant patients and are secondary to a dilatation of the right heart chambers. The correction of the hypocalcemia enabled correction of the QT interval.


Various cardiopathy


Reading level

1 / 3