The rhythm is regular at a rate of 120 beats/min. A pacemaker stimulus occurs before each QRS complex (→). This is ventricular pacing. Because the pacing rate is 120 beats/min, the mode of ...

P-wave synchronous ventricular pacing (A-sensed V-paced), pseudo second-degree AV block due to failure of atrial sensing. There is a regular rhythm at a rate of 130 beats/min. The QRS complex has ...

Ventricle pacemaker cells have a normal rate between 20 and 40 bpm. A faster rhythm is known as accelerated idioventricular ...

Ventricular paced rhythm was detected on 12-lead ECG. The widespread opinion that this constellation does not permit a diagnosis of ischemia on 12-lead ECG is not accurate, as this example shows.

Because the normal ventricular conduction system (His-Purkinje) is used, the QRS complex is frequently narrow. A junctional rhythm is normally ... can be seen at all. A pacemaker may be needed ...

Ventricular tachycardia ... when your heart rhythm looks more steady from beat to beat when your doctor checks the electrical activity with an electrocardiogram (EKG). Polymorphic VT is a very ...

An electrocardiogram (ECG) reveals a regular narrow-complex ... of the ventricle from the bypass tract; or a ventricular paced rhythm from a pacemaker. Wide-complex tachycardias can be regular ...

Atrial tachycardia and other ectopic atrial rhythms ... on ambulatory ECG monitoring in the elderly and is frequently asymptomatic. Symptoms of atrial tachycardia depend on the ventricular rate ...

Sometimes, an extra heartbeat that starts in the lower ventricle disturbs your regular heart rhythm. It’s known as a premature ventricular ... node acts as a natural pacemaker, creating the ...