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 193

ECG 193


Baseline rhythm

Sinus, regular at 60 bpm.P-waves: normal.PR interval: normal (140 ms).QRS: normal. Horizontal axis.ST segment: not depressed.T-waves: negative in I, II, aVF and from V2 to V6.QT interval: normal.


Negatives T waves in the precordial leads.


Widespread antero-apical sub-epicardial ischemia.


The negative T-waves from V2 to V6 are the sign of ischemia of the anterior wall. This ischemia is sub-epicardial given the morphology of the T-waves (negative in all the precordial leads). There is also lateral ischemia because the T-waves are also negative in I and aVL. The negativity of the T-wave in II signifies an inferior extension of this ischemia. This is certainly due to proximal LAD disease and this artery supplies not only the anterior wall but also the apex and the distal part of the septum (infero-apical) which explains the picture of inferior ischemia shown in II.


Ischemia and myocardial infarction


Reading level

1 / 3