[47] According to this schema, measuring, or even "eye-balling" leads ... it is more informative to refer to increase or decrease in the QRS voltage in a specific patient than to establish whether ...

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 ...

One of the Brugada morphology criteria to diagnose ventricular tachycardia when the QRS pattern is similar to a left bundle branch block is a wide R wave in lead V1 or V2 measuring > 40 ms (one ...