THE electrocardiographic picture of prolonged QRS-complex duration with short PR interval was the subject of isolated reports 1,2 until Wolff, Parkinson and White 3 described the clinical syndrome of ...

TO THOSE with extensive electrocardiographic experience, especially if it includes a large proportion of young adults, the finding of the pattern of a short PR interval and a prolonged QRS complex ...

Figure 2 shows a regular rhythm at a rate of 90 beats/min. The QRS complex duration is increased (0.14 sec), and there is a morphology of a right bundle branch block with an RSR' morphology in lead V1 ...

The diagnosis is right bundle branch block, left anterior fascicular block, Mobitz type I (Wenckebach) with 2:1 and 3:2 atrioventricular conduction (Figure 2). The rhythm is regular, except for the ...

A randomized, controlled, multi-center trial has found that cardiac resynchronization therapy produced no improvement in peak oxygen uptake during exercise testing, the trial's primary endpoint, in ...

If a premature atrial contraction occurs when the AV node has not yer recovered from the refractory period, the PAC will fail to conduct to the ventricles and there will not be a QRS complex ...

Please provide your email address to receive an email when new articles are posted on . ORLANDO, Fla. — Cardiac resynchronization therapy may be detrimental in patients with right bundle branch block ...