They are both ventricular pacing stimuli, consistent with left and right ventricular pacing (ie, biventricular pacemaker). This is confirmed by the QRS complex morphology, particularly in lead I ...

Biventricular pacemaker If the ventricular pacing is originating in the right ventricle like a normal pacemaker, a left bundle branch morphology will be present.

Cite this: Assessment of Regional Wall Motion by Strain Doppler During Biventricular Pacing in Patients with Conventional Indications for a Pacemaker - Medscape - Sep 01, 2004.

If you have congestive heart failure or a weakened heart pump as well as electrical abnormalities of the heart rhythm, then your doctor may recommend a biventricular pacemaker or defibrillator.

The three main types of pacemakers installed are dual chambers, single chambers, and biventricular pacemakers. Having fewer postoperative complications may result in partial growth.

"Currently there is a therapy for people with heart failure and a left bundle branch block using a special pacemaker called a biventricular pacemaker or cardiac resynchronization therapy," Marcus ...

The company's technology recently enabled Brazilian surgeons to implant biventricular pacemakers into the hearts of three patients through tiny "ports" in each patient's chest.

A 77-YEAR-OLD man has become the first in the UK to have a three-lead pacemaker fitted via a hole in the heart using a new device – removing the need for open-chest surgery.

St. Jude Medical's Frontier (TM) II device and the previously released Frontier (TM) device are the only devices approved by the FDA for the application of biventricular pacing in a post-AV nodal ...

The ECG of a biventricular pacemaker takes on a "fusion" and more narrow QRS complex (although still somewhat wide) with an upright QRS complex in V1 similar to a right bundle branch block pattern.