If the QRS complex is widened and downwardly deflected in lead V1, a left bundle branch block is present ... to distinguish from ventricular tachycardia because both cause a wide complex QRS ...

Any tachycardic rhythm with a left or right bundle branch block that is NOT ventricular tachycardia is considered "supraventricular tachycardia with aberrancy". This would even include sinus ...

1. Houthuizen P, Van Garsse LAFM, Poels TT, et al. Left bundle branch block induced by transcatheter aortic valve implantation increases risk of death. Circulation. 2012;Epub ahead of print. 2. Welt ...

Other causes of left bundle branch block tachycardia, such as any form of supraventricular tachycardia with aberration, should not be overlooked. Also important to consider is macro re-entry ...

Left bundle branch block: Electrical signals are delayed in the left bundle branch. Tachybrady syndrome is a combination of a fast heart rate (tachycardia) and slow heart rate (bradycardia).

Ventricular tachycardia with right bundle-branch block–like morphologic features in the V 1 lead and leftward axis is consistent with an inferoseptal left ventricular site of origin and may ...

A 46-year-old woman with type 1 myotonic dystrophy (DM1) presented to the emergency department with dyspnea and palpitations.

Several arrhythmias can present as wide-complex tachycardia, including VT, supraventricular tachycardia (SVT) with aberrancy or bundle branch block (BBB ... and drug-induced and electrolyte ...

An electrocardiogram (Figure 2A) showed sinus bradycardia and first-degree atrioventricular delay, as well as right bundle-branch block and a left ... tachycardia with varying foci were induced.