Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

Pacing Clin Electrophysiol. 2005;28(12):1322-1346. The performance of SVT-VT discriminators is linked to boundaries between detection zones for ventricular arrhythmias. In Guidant ICDs, this link is ...

This ECG has a narrow QRS complex initally, then a fast heart rate, regular rhythm and no identifiable P wave activity which suddenly turns to a wide complex in a left bundle branch block pattern. The ...

Please provide your email address to receive an email when new articles are posted on . Dronedarone was associated with lower incidence of permanent atrial fibrillation/atrial flutter, more return to ...