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 ...

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 ...

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 ...

Among patients hospitalized with heart failure, having a longer than normal QRS duration (a measurement of the electrical conducting time of the heart on an electrocardiogram (ECG)] appears to predict ...

ORLANDO, Fla. — Cardiac resynchronization therapy may be detrimental in patients with right bundle branch block and a very wide QRS duration, defined as 180 ms or more, according to findings presented ...

Wide complex tachycardia is a general term that refers to conditions that cause an unusually fast heart rate and a particular pattern on an EKG. Tachycardia is when your heart beats unusually fast, ...

QRS interval widening appears to be highly specific for the diagnosis of hyperkalemia in patients with end-stage kidney disease. ECG changes, in general, have poor sensitivities for hyperkalemia in ...