ECG Directory

Welcome to this interactive ECG course.




The ECGs are available sorted by keywords and categories.

ECG 083

ECG 083


Basic rhythm

Irregularly irregular rhythm.

P waves


PR interval



Normal axis and duration.

ST segment

Elevation in II, III and aVF, more significant in III than in II.

QT interval



ST segment elevation.
Irregularly irregular narrow QRS tachycardia.


Inferior mycocardial infarction with image of lesion (STEMI), atrial fibrillation.


The ST segment elevation that is more significant in lead III than in II suggests probable occlusion of the right coronary artery, which is responsible for the inferior myocardial infarction. The irregularly irregular rhythm is due to atrial fibrillation.


Ischemia and myocardial infarction


Reading level

1 / 3