One day he noticed some tingling in his fingers. He thought it might be from all the hours typing at work, but then it ...

—A new study shows that SCD is linked to prolonged P-wave duration, even in individuals with no coincident cardiovascular conditions or atrial fibrillation. Share on Facebook. Opens in a new tab ...

In this setting, the atrial rate (P waves) and ventricular rate (QRS complexes) are at different heart rates. One quick and easy way to measure the ventricular rate is to examine the RR interval ...

A junctional rhythm occurs when the electrical activation of the heart originates near or within ... originates at or near the AV node, the P wave is frequently not seen; it can be buried within ...