This wide QRS complex tachycardia has a typical left bundle branch block pattern, but two things give the clue that this is ventricular tachycardia. There is a fusion beat (second from left) present ...

There is a regular rhythm at a rate of 140 beats/min. The QRS complex is wide (0.16 sec). There is an initial R wave in lead V1 (←) but the morphology does not resemble either a typical right or left ...

Atrial fibrillation with a rapid ventricular response Left bundle branch block This ECG is considered "SVT with aberrancy" due to the atrial fibrillation with a fast ventricular rate and a wide QRS ...

We report the case of a 56-year-old man who had sudden palpitations, lightheadedness, chest pain, and dyspnea. Paramedics arrived within about 10 minutes after the onset of symptoms and found that the ...

The diagnosis is normal sinus rhythm, nonsustained ventricular tachycardia from right ventricular outflow tract (repetitive monomorphic ventricular tachycardia) (Figure 2). The rhythm is irregular and ...

What has caused this young woman in her 20s to develop heart palpitations and shortness of breath? That's what Xuhong Geng, MD, of Fourth Hospital of Hebei Medical University in China, and colleagues ...

There is evidence that biventricular (BV) pacing reduces the frequency of ventricular arrhythmias, although the underlying mechanism has not been established. Kowal et al. have investigated this in ...

Dr. Emily C. Cleveland (Emergency Medicine): A 30-year-old woman was brought to the emergency department of this hospital because of cardiac arrest. On the morning of this presentation, the patient ...

Middle-aged folks who don't exercise are putting themselves at risk of life-threatening complex heartbeat irregularities, a new study says. Adults 40 to 65 with low fitness levels had a 52% increased ...