The rhythm is irregular, but the long intervals are the same (↔) and the short intervals (┌┐) are the same. One premature QRS complex (↑) is observed. Therefore, the rhythm is regularly irregular. The ...

Patients with a low Athens QRS score are highly likely to have coronary artery disease (CAD) even if they have a normal exercise stress test (EST), say researchers. Such patients "may warrant further ...

This ECG occurred in the setting of a large pericardial effusion causing cardiac tamponade. The pericardial effusion dampens the electrical signal on the ECG causing low voltage to be present (see Low ...

A specialist tells how to interpret subtle changes on the ECG, including those caused by two life-threatening syndromes you might otherwise miss. Reading ECGs is like learning to appreciate art—it is ...

When considering whether cardiac rhythms are normal, it is important to understand the electrical conducting system of the heart and how the ECG works, which were covered in parts 1 and 2 of this ...

This ECG occurred in the setting of a large pericardial effusion causing cardiac tamponade. The pericardial effusion dampens the electrical signal on the ECG causing low voltage to be present (see Low ...