An electrocardiogram (ECG) is a common heart health test, but a normal result doesn't guarantee a healthy heart. The electrical system is measured by ECG, but it cannot detect blockages or structural ...

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 ...

An electrocardiogram, or ECG, is a standard test that records your heart’s electrical activity – offering a quick and painless way to identify irregular heart rhythms and other potential issues. But ...

This ECG shows a normal QRS complex with runs of a narrow complex tachycardia. There appear to be P waves present before the QRS complexes, however not of normal sinus morphology suggesting an ectopic ...

Many a layman who has just had an electrocardiogram takes his doctor’s verdict of “ECG normal” as an assurance of a long and healthy life. Cardiologists know better. The repetitive squiggles on the ...

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 ...