Regular broad complex tachycardias may be either ventricular ... And, of course, atrial fibrillation is irregularly irregular. New-onset atrial flutter most often presents with 2:1 conduction.

The remaining physical examination was unremarkable. Figure 1 exhibits his initial ECG. The ECG shows a wide QRS complex tachycardia with irregular RR intervals, delta waves and no P waves, findings ...

He presented to urgent care and was found to be in wide complex tachycardia at the rate of about 200 bpm (Figure 1). The patient was given diltiazem intravenously and converted to atrial flutter ...

This type of procedure is frequently used to treat ventricular tachycardias originating in ... of the cardiac tissue circuits that maintain complex ventricular tachycardias. Using this animal ...

Atrioventricular (AV) nodal reentrant tachycardia (AVNRT) is an irregular heart rhythm that can cause excessively fast heart rates. Though not usually serious, early diagnosis can help prevent ...

A physical examination revealed an irregular cardiac rhythm and a blood pressure of 92/58 mm Hg. The medical team performed an initial 12-lead ECG, which showed a wide complex tachycardia ...

Tachycardia and bradycardia are two types of irregular heart rates. Tachycardia is when the heart beats faster than 100 beats per minute. Bradycardia is when the heart beats slower than 60 beats ...

Fluctuating heartbeats, medically known as arrhythmias, encompass irregular heart rhythms. These variations can take the form of a heartbeat that is too fast (referred to as tachycardia), too slow ...

In lead II, is the time from the onset of the QRS complex to the first peak of the R wave or S wave > 40 ms? In lead aVR, is the time from the onset of the QRS complex to the first peak of the R ...