The newly cleared features include three rhythm modifiers and two axis-related morphology determinations: RAD and LAD.

The electrocardiogram (ECG) is a valuable tool for assessing the cardiac conduction system. The measurements routinely obtained with ECG include heart rate, PR interval, QRS duration and the QT ...

Second Degree Type I AV Block 2:1 AV block Some P waves conduct to the ventricles on this ECG tracing, however it is clear that some do not. There does appear to be a prolonging PR interval before ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. College athletes who have recently recovered from COVID-19 infection show cardiac abnormalities on ...