A widened QRS duration occurs in the setting of a right bundle branch block, left bundle branch block, non-specific intraventricular conduction delay and during ventricular arrhythmias such as ...

Hyperkalemia causes peaked T waves initially, then an intraventricular conduction delay with a widened QRS complex, then bradycardia. Eventually a “sine wave” pattern ensues.

The QRS complex duration is increased ... Hence, the widened QRS complex is the result of an intraventricular conduction delay (IVCD) and not a LBBB. In contrast to a LBBB, ...

LV dyssynchrony is most prevalent among patients with wide QRS intervals, but patients with narrow complexes still exhibit LV dyssynchrony as quantified by tissue Doppler imaging. On the basis of ...

The wide QRS complex tachycardias terminated with retrograde P waves after the fourth and 12th QRS complexes, Jhawar and co-authors said.

New algorithm using only lead aVR for differential diagnosis of wide QRS complex tachycardia. 89–98, copyright (2008), with permission from Elsevier. v i /v t measures the vertical excursion (in ...

Eligible heart failure patients with a wide QRS complex spent more time alive after use of a cardiac resynchronization therapy defibrillator (CRT-D) compared with an implantable cardioverter ...

Most wide QRS complex tachycardias (WCTs) are ventricular or supraventricular in origin, but to differentiate between the two can present a diagnostic challenge. To develop and test an algorithm ...